Selected quad for the lemma: earth_n

Word A Word B Word C Word D Occurrence Frequency Band MI MI Band Prominent
earth_n fix_a motion_n star_n 2,539 5 9.5176 5 false
View all documents for the selected quad

Text snippets containing the quad

ID Title Author Corrected Date of Publication (TCP Date of Publication) STC Words Pages
A93028 The anatomy of Urania practica or, a short mathematicall discourse; laying open the errors and impertinencies delivered in a treatise lately published by Mr. Vincent Wing, and Mr. William Leybourne, under the title of Urania practica. By Jeremy Shakerley philomath. Shakerley, Jeremy, fl. 1651. 1649 (1649) Wing S2911; Thomason E1366_1; ESTC R209254 23,878 48

There are 4 snippets containing the selected quad. | View original text

the_o year_n of_o our_o lord_n be_v only_o of_o all_o the_o follow_a centenaries_n to_o be_v bissextile_a the_o rest_n of_o the_o centenaries_n only_o common_a year_n of_o 365._o day_n whereby_o it_o fall_v out_o the_o gregorian_a account_n every_o 400._o year_n gain_v three_o day_n of_o what_o the_o julian_n lose_v the_o difference_n of_o the_o two_o account_n in_o some_o succeed_a centenaries_n we_o have_v here_o exhibit_v in_o this_o table_n  _fw-fr an._n don_n ad_fw-la da_fw-mi anno_fw-la domini_fw-la add_v day_n anno_fw-la dom_n ad_fw-la da._n from_o the_o 5._o of_o october_n 1582._o 10._o  _fw-fr from_o the_o 24_o of_o february_n 1700._o 11._o 2500._o 17._o 3300_o 23_o 1800._o 12._o 2600._o 18._o 3400_o 24_o 1900._o 13._o 2700._o 19_o 3500_o 25_o 2100._o 14._o 2900._o 20._o 3700_o 26_o 2200._o 15._o 3000._o 21._o 3800_o 27_o 2300._o 16._o 3100._o 22._o 3900_o 28_o thus_o by_o omit_v the_o intercalation_n in_o these_o year_n the_o dominical_a letter_n and_o epact_n which_o depend_v on_o the_o number_n of_o day_n in_o each_o year_n come_v to_o be_v change_v and_o by_o reason_n of_o the_o former_a the_o number_n of_o direction_n and_o consequent_o the_o movable_a feast_n can_v by_o my_o author_n rule_n be_v true_o perpetual_o gather_v all_o which_o with_o some_o other_o inconvenience_n have_v be_v here_o more_o full_o insist_v on_o if_o we_o have_v not_o think_v this_o that_o have_v be_v say_v sufficient_a for_o the_o ingenious_a whereby_o to_o correct_v and_o amend_v these_o imperfection_n and_o that_o origanus_n in_o the_o first_o part_n of_o his_o introduction_n to_o his_o ephemerides_n have_v save_v our_o pen_n that_o labour_n which_o haste_v to_o discovery_n of_o further_a concernment_n chap._n iii_o the_o inequality_n of_o the_o precession_n of_o the_o equinoctial_a point_n examine_v what_o may_v be_v happy_a to_o urania_n and_o grateful_a to_o her_o true_a and_o legitimate_a favourite_n we_o now_o adventure_v upon_o the_o sun_n and_o moon_n motion_n a_o large_a current_n of_o consideration_n do_v charge_v we_o and_o we_o be_v likely_a to_o have_v more_o matter_n than_o convenience_n to_o prosecute_v it_o yet_o shall_v my_o unwillingness_n to_o trouble_v the_o reader_n with_o more_o than_o be_v needful_a for_o our_o present_a purpose_n and_o my_o hope_n of_o a_o future_a fit_a opportunity_n to_o dilate_v my_o conceit_n upon_o this_o subject_n prevail_v with_o the_o urgency_n of_o the_o matter_n and_o confine_v my_o discourse_n to_o its_o intend_a limit_n the_o first_o occasion_n that_o invite_v our_o pen_n to_o consider_v hereof_o be_v give_v by_o our_o author_n pag._n 52._o where_o mention_n be_v make_v of_o a_o mean_a and_o true_a equinox_n in_o these_o word_n so_o shall_v you_o have_v the_o true_a motion_n of_o the_o sun_n ab_fw-la aequinoctio_fw-la vero_fw-la for_o in_o these_o table_n the_o sun_n be_v mean_a motion_n be_v reckon_v from_o the_o true_a equinox_n and_o not_o from_o the_o mean_v whereby_o we_o may_v gather_v that_o our_o author_n admit_v of_o a_o inequality_n of_o the_o precession_n of_o the_o equinoctial_a point_n the_o manner_n whereof_o with_o the_o cause_n of_o its_o admission_n into_o astronomy_n and_o last_o the_o validity_n thereof_o because_o none_o of_o these_o be_v by_o our_o author_n so_o much_o as_o touch_v it_o will_v not_o be_v inconvenient_a here_o in_o as_o brief_a a_o way_n as_o may_v be_v to_o deliver_v after_o that_o noble_a dane_n tycho_n brahe_n have_v to_o the_o glory_n of_o art_n and_o joy_n of_o artist_n with_o incredible_a pain_n and_o diligence_n perfect_v that_o elaborate_a table_n of_o the_o fix_a star_n and_o rectify_v it_o to_o his_o own_o time_n a_o further_a and_o necessary_a care_n of_o perpetuate_a it_o induce_v he_o to_o consider_v what_o help_n may_v be_v draw_v from_o ancient_a observation_n to_o this_o purpose_n and_o perceive_v by_o those_o account_n that_o be_v take_v of_o their_o place_n first_o by_o hipparchus_n afterward_o by_o ptolomey_n albategnius_n arzabel_n copernicus_n and_o some_o other_o that_o they_o have_v not_o only_a motion_n but_o unequal_a motion_n and_o inconstancy_n in_o their_o latitude_n in_o several_a age_n he_o be_v force_v to_o devise_v some_o way_n whereby_o these_o motion_n may_v be_v regulate_v to_o prove_v consentaneous_a to_o the_o observation_n of_o all_o age_n the_o theory_n of_o this_o inequality_n be_v according_a to_o the_o famous_a astronomer_n chr._n s._n longomontanus_n in_o this_o manner_n longomontanus_n theric_n lib._n 1._o let_v a_o be_v the_o pole_n of_o tke_v ecliptic_a bc_n that_o part_n of_o the_o arctic_a circle_n of_o the_o ecliptic_a which_o the_o pole_n of_o the_o earth_n in_o b_o have_v run_v by_o its_o equal_a motion_n upon_o the_o centre_n of_o the_o ecliptic_a since_o the_o creation_n this_o arch_a measure_n also_o the_o precession_n of_o the_o equinox_n and_o progressive_a motion_n of_o the_o fix_a star_n basilius_n be_v 23._o degr_n 42._o min_fw-mi the_o zodiac_n mean_v obliquity_n dge_v the_o small_a circle_n regulate_v the_o obliquity_n of_o the_o zodiac_n ad_fw-la it_o radius_fw-la 10._o min._n 53._o sec_fw-la by_o which_o it_o appear_v both_o how_o the_o zodiac_n change_v its_o obliquity_n and_o also_o how_o the_o equinoctial_a point_n and_o consequent_o every_o several_a point_n in_o the_o zodiac_n do_v inequal_o anticipate_v for_o when_o the_o pole_n of_o the_o aequator_fw-la which_o be_v carry_v in_o the_o circle_n edg_n be_v at_o e_o or_o g_o the_o obliquity_n be_v in_o its_o mean_a deviation_n and_o be_v equal_a to_o ab_fw-la 23._o degr_n 42._o min._n but_o the_o equation_n of_o the_o equinox_n be_v the_o great_a gba_n 27._o min._n 5._o sec_fw-la and_o be_v to_o be_v substract_v at_o g_o add_v at_o e_o wnen_n the_o pole_n of_o the_o aequator_fw-la be_v at_o d_o the_o obliquity_n be_v least_o and_o be_v equal_a to_o db_v 23._o degr_n 31._o min._n 7._o sec_fw-la but_o when_o the_o pole_n of_o the_o aequator_fw-la be_v at_o f_o the_o obliquity_n b_o f_o be_v great_a and_o be_v 23._o degr_n 52._o min._n 53._o sec_fw-la and_o in_o both_o these_o case_n there_o be_v no_o aequation_n of_o the_o equinox_n by_o reason_n of_o the_o coincidence_n of_o the_o line_n basilius_n and_o bg_n this_o be_v the_o artifice_n longomontanus_n have_v use_v to_o satisfy_v appearance_n with_o which_o if_o we_o shall_v phiscally_a consider_v i_o doubt_v we_o shall_v find_v it_o more_o ingenuous_a than_o true_a for_o it_o be_v scarce_o tolerable_a for_o any_o astronomer_n to_o devise_v circle_n and_o imaginary_a motion_n where_o with_o to_o fill_v the_o heaven_n and_o withdraw_v the_o eye_n of_o man_n from_o a_o perfect_a consideration_n of_o the_o wisdom_n and_o power_n of_o his_o creator_n which_o best_o appear_v in_o the_o simplicity_n and_o uniformity_n of_o these_o celestial_a essence_n yet_o may_v this_o hypothesis_n have_v be_v allow_v yea_o high_o commend_v if_o any_o good_a to_o astronomy_n have_v come_v thereby_o more_o than_o a_o needless_a multiplication_n of_o uncertainty_n we_o will_v consider_v in_o a_o few_o word_n the_o validity_n and_o necessity_n of_o this_o hypothesis_n to_o perform_v what_o it_o promise_v of_o the_o necessity_n hereof_o ancient_a observation_n can_v give_v we_o no_o certainty_n for_o from_o proclus_n to_o our_o time_n for_o above_o a_o thousand_o year_n the_o aequinoctial_a point_n have_v make_v a_o certain_a and_o equal_a precession_n agreeable_a to_o that_o rule_n of_o motion_n which_o timocharis_n and_o hipparchus_n observe_v above_o 1800._o year_n ago_o if_o we_o only_o except_o ptolomey_n therefore_o if_o any_o circulation_n more_o than_o annual_a and_o diurnal_a if_o those_o be_v to_o be_v admit_v have_v befall_v to_o the_o pole_n of_o the_o aequator_fw-la whereby_o it_o have_v be_v so_o enormious_o remove_v from_o its_o situation_n it_o be_v betwixt_o the_o time_n of_o hipparchus_n and_o ptolomey_n in_o the_o space_n of_o less_o than_o three_o hundred_o year_n and_o be_v again_o restore_v in_o the_o time_n betwixt_o ptolomey_n and_o preclus_fw-la in_o other_o three_o hundred_o year_n wherefore_o without_o injury_n we_o may_v doubt_v of_o the_o certainty_n of_o ptolemy_n observation_n and_o the_o rather_o for_o that_o he_o himself_o seem_v to_o imply_v as_o much_o by_o these_o word_n non_fw-fr in_o tropicis_fw-la tantum_fw-la observation_n bus_fw-la sed_fw-la &_o in_o aequinoctiabus_n error_n accidere_fw-la poorest_n qui_fw-la ad_fw-la quartam_fw-la unius_fw-la diei_fw-la partem_fw-la se_fw-la extendat_fw-la quod_fw-la si_fw-la ●nim_fw-la in_o 3600_o tantum_fw-la particula_fw-la as_o if_o that_o be_v little_a or_o nothing_o aequatoris_fw-la situs_fw-la aut_fw-la instrumentis_fw-la divisio_fw-la arecta_fw-la raratione_fw-la deficiat_fw-la illam_fw-la in_o latitudine_fw-la sive_fw-la decliatione_fw-la ac_fw-la ☉_o ad_fw-la aequatorem_fw-la accessu_fw-la ad_fw-la aequabit_fw-la quarta_fw-la circiter_fw-la unius_fw-la gradus_fw-la pars_fw-la in_o zodiaco_n &_o longitudine_fw-la etc._n etc._n praeterquam_fw-la quod_fw-la &_o majus_fw-la erratum_fw-la esse_fw-la
soleat_fw-la si_fw-la per_fw-la instrumenta_fw-la fiant_fw-la observatirnes_n quae_fw-la non_fw-la illarum_fw-la tempore_fw-la exquisite_a positae_fw-la sunt_fw-la sed_fw-la iam_fw-la olim_fw-la ita_fw-la constituta_fw-la ut_fw-la diu_fw-la firmata_fw-la lapsu_fw-la temporum_fw-la tandem_fw-la commoveantur_fw-la ac_fw-la in_o situ_fw-la deficiant_fw-la this_o and_o more_o ptolom_n almag_n lib._n 3_o cap._n 2._o how_o sandy_a a_o foundation_n his_o observation_n be_v whereon_o to_o build_v astronomy_n especial_o see_v they_o disagree_v from_o other_o may_v by_o his_o own_o word_n best_o be_v gather_v he_o that_o desire_v to_o see_v a_o more_o full_a confutation_n of_o this_o inequality_n may_v have_v it_o in_o phocylides_n his_o examen_fw-la astronom●ae_fw-la lansbergianiae_fw-la who_o from_o page_n 38._o to_o page_n 63._o he_o clear_o evince_v the_o same_o from_o all_o the_o observation_n of_o equinox_n have_v by_o the_o best_a astronomer_n in_o every_o age_n and_o prove_v a_o constant_a quantity_n of_o the_o tropical_a year_n in_o all_o age_n a_o short_a synopsis_fw-la whereof_o we_o have_v here_o present_v the_o reader_n with_o but_o that_o it_o will_v grow_v beyond_o our_o intention_n and_o that_o if_o the_o disposer_n of_o all_o our_o action_n grant_v i_o ability_n and_o conveniency_n to_o prosecute_v the_o service_n of_o urania_n i_o may_v hereafter_o both_o enlarge_v and_o correct_v my_o present_a thought_n upon_o this_o subject_n the_o learned_a kepler_n pag._n 27._o prec_n tab_v rudolph_n doubt_v not_o to_o assert_v that_o there_o have_v never_o be_v any_o other_o obliquity_n of_o the_o zodiac_n than_o what_o be_v now_o viz._n 23._o degr_n 31._o min._n 30._o sec_fw-la or_o by_o reason_n of_o his_o diminution_n of_o the_o sun_n paralax_n 23._o degr_n 30._o min._n 30._o sec_fw-la or_o consequent_o any_o inequality_n of_o the_o precession_n of_o the_o equinoctial_a point_n and_o affirm_v he_o can_v demonstrate_v it_o but_o methinks_v it_o be_v too_o manifest_a a_o injury_n to_o the_o ancient_n to_o deny_v the_o one_o so_o constant_o evince_v from_o their_o observation_n but_o we_o must_v ever_o look_v with_o a_o indulgent_a eye_n upon_o that_o worthy_a man_n whole_a astronomical_a performance_n do_v sufficient_o make_v know_v his_o worth_n and_o memorize_v he_o to_o posterity_n it_o be_v not_o one_o age_n much_o less_o one_o man_n that_o be_v able_a to_o restore_v astronomy_n his_o set_v down_o five_o form_n hereof_o in_o his_o rudolphine_n table_n show_v the_o copiousness_n of_o his_o wit_n his_o choose_n of_o none_o manifest_a the_o penury_n and_o uncertainty_n of_o former_a observation_n and_o sure_o these_o thing_n with_o many_o more_o lie_v hide_v in_o the_o pandect_n of_o posterity_n not_o to_o be_v disclose_v until_o god_n the_o arbyter_n of_o age_n shall_v open_v this_o eternal_a book_n and_o disclose_v the_o secret_n hereof_o to_o mortal_n that_o noble_a frenchman_n ishmael_n bullialdus_n the_o late_a restorer_n of_o astronomy_n have_v in_o his_o astronomia_fw-la philolaica_n follow_v longomontanus_n in_o the_o obliquity_n of_o the_o zodiac_n but_o reject_v the_o aequation_n of_o the_o equinox_n for_o these_o reason_n first_o there_o be_v no_o observation_n of_o the_o ancient_n which_o give_v a_o sufficient_a exactness_n in_o the_o time_n of_o the_o equinox_n or_o place_n of_o the_o fix_a star_n whereupon_o to_o build_v such_o a_o fabric_n of_o turbination_n and_o that_o it_o be_v rashness_n in_o any_o to_o attempt_v it_o second_o no_o circular_a revolution_n in_o the_o heaven_n admit_v in_o its_o whole_a circumference_n more_o inequality_n than_o one_o be_v slow_a in_o the_o one_o semicircle_n swift_a in_o the_o other_o but_o if_o we_o admit_v this_o inequality_n of_o the_o precession_n of_o the_o equinox_n the_o simple_a motion_n be_v many_o time_n intend_v and_o remit_v but_o in_o other_o revolution_n intend_v but_o once_o and_o remit_v no_o often_o three_o so_o small_a a_o difference_n be_v there_o find_v in_o distinct_a interval_n of_o time_n that_o it_o can_v be_v attribute_v to_o any_o true_a aod_a natural_a motion_n but_o with_o great_a boldness_n and_o temerity_n whereby_o we_o impudent_o fasten_v upon_o the_o heaven_n the_o fiction_n and_o chimaera_n of_o our_o own_o imperfect_a intellect_n four_o that_o body_n which_o be_v further_a distant_a from_o the_o centre_n of_o the_o world_n will_v be_v immovable_a which_o yet_o notwithsanding_n ought_v to_o partake_v of_o motion_n as_o well_o as_o other_o body_n which_o move_v obout_o the_o sun_n although_o the_o motion_n be_v very_o slow_a by_o reason_n of_o its_o immense_a distance_n from_o the_o centre_n and_o the_o amplitude_n of_o the_o space_n in_o which_o it_o move_v but_o why_o shall_v other_o body_n move_v and_o the_o whole_a systeme_n of_o fix_a star_n remain_v unmovable_a every_o body_n place_v about_o the_o centre_n of_o the_o world_n ought_v to_o have_v a_o motion_n about_o that_o otherwise_o it_o will_v be_v a_o stranger_n to_o nature_n and_o no_o partaker_n thereof_o it_o keep_v all_o thing_n in_o motion_n and_o not_o suffer_v they_o to_o be_v idle_a five_o we_o ought_v not_o to_o think_v that_o the_o fix_a star_n have_v a_o apparent_a progressive_a motion_n according_a to_o the_o order_n of_o the_o sign_n for_o that_o cause_n alone_o because_o the_o fix_a star_n and_o the_o equinoctial_a point_n have_v a_o slow_a motion_n upon_o the_o terrestrial_a pole_n in_o antecedence_n of_o the_o sign_n for_o although_o in_o respect_n of_o the_o fix_a star_n such_o a_o hypothesis_n may_v be_v true_a because_o there_o be_v no_o exterior_a body_n diverse_o prove_v to_o which_o the_o motion_n of_o the_o fix_a star_n may_v be_v sensible_o compare_v yet_o be_v it_o not_o to_o be_v admit_v because_o it_o can_v stand_v with_o the_o planet_n motion_n yet_o may_v it_o stand_v if_o the_o sun_n alone_o do_v appear_v for_o by_o the_o annual_a motion_n of_o the_o pole_n of_o the_o earth_n the_o sun_n which_o then_o will_v not_o be_v suppose_v to_o run_v his_o annual_a motion_n through_o the_o zodiac_n will_v manifest_v his_o access_n and_o recess_n but_o the_o planet_n will_v be_v see_v in_o the_o circle_n of_o altitude_n subject_a to_o irregular_a deviat_v once_o which_o nevertheless_o be_v not_o therefore_o this_o hypothesis_n be_v possible_a be_v there_o but_o one_o planet_n but_o there_o be_v more_o it_o be_v not_o possible_a nor_o aught_o to_o be_v admit_v six_o this_o argument_n be_v draw_v a_o simili_fw-la we_o see_v in_o the_o moon_n a_o certain_a direction_n of_o her_o part_n to_o the_o earth_n it_o be_v therefore_o likely_a that_o there_o be_v also_o direction_n of_o the_o earth_n part_n to_o the_o sun_n and_o that_o their_o axe_n retain_v always_o the_o same_o positure_n the_o one_o to_o the_o other_o without_o any_o turbination_n of_o either_o these_o be_v the_o argument_n which_o the_o learned_a bullialdus_n lib._n 5._o cap._n 2._o astron._n philol._n have_v bring_v for_o the_o dissolution_n of_o this_o inequality_n which_o i_o have_v here_o present_v to_o the_o reader_n in_o the_o same_o manner_n that_o he_o have_v deliver_v they_o which_o though_o some_o of_o they_o vary_v from_o my_o present_a conceit_n yet_o do_v the_o rest_n notable_o fortify_v my_o opinion_n add_v to_o these_o what_o bullialdus_n have_v demonstrate_v concern_v the_o perpetual_a equality_n of_o the_o tropical_a year_n and_o i_o will_v fain_o see_v how_o the_o author_n of_o urania_n practica_fw-la will_v disprove_v they_o but_o such_o be_v their_o want_n of_o consideration_n they_o have_v not_o sufficient_o follow_v their_o own_o theory_n herein_o and_o though_o admit_v of_o this_o inequality_n yet_o have_v give_v no_o rule_n or_o table_n how_o to_o obtain_v it_o the_o lustre_n of_o urania_n have_v it_o may_v be_v dazzle_v their_o eye_n and_o the_o high_a flight_n of_o their_o pen_n have_v leave_v their_o judgement_n behind_o it_o so_o that_o we_o may_v just_o wonder_v what_o concert_n whether_o the_o desire_n of_o be_v serviceable_a to_o urania_n rr_z enoble_v their_o name_n have_v draw_v they_o to_o be_v actor_n upon_o the_o public_a stage_n where_o every_o judicious_a spectator_n may_v discern_v their_o insufficiency_n chap._n four_o of_o the_o sun_n and_o moon_n table_n the_o next_o thing_n in_o order_n we_o shall_v take_v notice_n of_o be_v the_o sun_n and_o moon_n table_n and_o hereof_o we_o can_v say_v little_a because_o our_o author_n have_v say_v nothing_o they_o only_o afford_v we_o epochae_n for_o some_o few_o year_n without_o any_o sufficient_a rule_n whereby_o to_o perpetuate_v they_o for_o those_o annual_a motion_n by_o they_o set_v down_o in_o the_o end_n of_o page_n 65._o can_v be_v perpetual_o consonant_a to_o their_o own_o rule_n unless_o they_o will_v with_o we_o deny_v the_o inequal_a precession_n of_o the_o equinoctial_a point_n which_o their_o own_o word_n mention_v in_o the_o precedent_a chapter_n do_v oppose_v yet_o what_o we_o can_v gather_v from_o the_o table_n themselves_o and_o our_o
three_o this_o angle_n differ_v from_o the_o former_a bpg_n to_o which_o it_o be_v assume_v equal_a only_a 10_o three_o nor_o in_o this_o practice_n be_v the_o difference_n ever_o great_a the_o like_a may_v have_v be_v say_v of_o the_o former_a theorem_a but_o that_o the_o difference_n which_o be_v here_o so_o contemptible_a be_v there_o far_o small_a and_o can_v in_o neither_o of_o they_o though_o with_o the_o most_o scrupulous_a leave_v any_o scruple_n of_o the_o certainty_n of_o our_o demonstration_n this_o theorem_a be_v the_o ground_n of_o the_o 148._o precept_n of_o the_o rudolphine_n table_n who_o word_n run_v thus_o conjice_n in_o unam_fw-la summam_fw-la parallax_n horizontales_fw-la solis_fw-la &_o lunae_fw-la ab_fw-la hac_fw-la summâ_fw-la abjiciatur_fw-la semidiamiter_n solis_fw-la apparens_fw-la relinquitur_fw-la sem_fw-mi diameter_n umbrae_fw-la justa_fw-la ad_fw-la tempus_fw-la which_o be_v the_o same_o our_o theorem_a do_v require_v i_o may_v here_o show_v iii_o that_o if_o the_o cone_n of_o the_o shadow_n be_v so_o continue_v beyond_o the_o earth_n that_o the_o diameter_n of_o the_o sun_n be_v the_o base_a thereof_o and_o the_o centre_n of_o the_o moon_n be_v in_o the_o axe_n thereof_o betwixt_o the_o earth_n and_o the_o sun_n the_o sum_n of_o her_o horizontall_a parallax_n and_o the_o semiangle_n of_o the_o cone_n be_v equal_a to_o the_o apparent_a semidiameter_n of_o the_o cone_n in_o that_o distance_n four_o that_o the_o difference_n betwixt_o the_o apparent_a semidiameter_n of_o the_o shadow_n and_o the_o horizontall_a parallax_n of_o the_o moon_n in_o the_o shadow_n that_o be_v the_o semiangle_n of_o the_o cone_n of_o the_o shadow_n in_o the_o same_o distance_n of_o the_o sun_n from_o the_o earth_n be_v still_o the_o same_o and_o receive_v no_o change_n from_o the_o moon_n vary_v her_o distance_n from_o the_o earth_n v._o that_o it_o be_v impossible_a for_o any_o planet_n or_o star_n that_o be_v situate_a without_o the_o earth_n to_o be_v utter_o void_a of_o horizontall_a parallax_n if_o we_o speak_v mathematical_o though_o sensible_o the_o fix_a star_n and_o other_o remote_a body_n can_v be_v say_v to_o have_v any_o parallax_n in_o regard_n that_o the_o semidiameter_n of_o the_o earth_n which_o be_v the_o tangent_fw-la of_o their_o parallax_n to_o the_o radius_fw-la of_o the_o distance_n bear_v no_o evident_a proportion_n to_o that_o distance_n but_o these_o thing_n to_o he_o that_o understand_v any_o thing_n of_o geomitrie_n need_v no_o demonstration_n but_o be_v evident_a from_o the_o diagram_n itself_o and_o partly_o for_o that_o cause_n they_o be_v here_o omit_v partly_o because_o i_o hold_v it_o superfluous_a to_o use_v more_o engine_n against_o our_o author_n falsity_n then_o be_v needful_a for_o the_o confute_v thereof_o and_o last_o because_o that_o all_o those_o theorem_n which_o may_v be_v deduce_v from_o the_o precedent_a diagram_n be_v not_o to_o our_o present_a purpose_n but_o have_v a_o noble_a object_n than_o any_o our_o author_n seem_v to_o have_v aim_v at_o their_o rule_n and_o table_n be_v make_v of_o such_o abject_a stusfe_n they_o deserve_v not_o the_o title_n of_o mathematical_a or_o astronomical_a as_o not_o agree_v to_o the_o pure_a and_o undoubted_a principle_n of_o art_n which_o we_o will_v here_o manifest_v in_o the_o first_o theorem_a we_o demonstrate_v that_o the_o difference_n of_o the_o sun_n be_v apparent_a semidiameter_n and_o his_o horozontall_a parallax_n be_v equal_a to_o the_o semiangle_n of_o the_o cone_n of_o the_o shadow_n and_o in_o the_o second_o theorem_a that_o the_o difference_n of_o the_o moon_n horizontall_a parallax_n and_o the_o apparent_a semidiameter_n of_o the_o shadow_n be_v likewise_o equal_a to_o the_o semiangle_n of_o the_o cone_n of_o the_o shadow_n it_o follow_v hence_o that_o these_o two_o difference_n be_v likewise_o equal_a one_o to_o another_o but_o how_o well_o our_o author_n have_v accord_v hereunto_o may_v appear_v by_o the_o follow_a synopsis_n the_o number_n whereof_o we_o have_v take_v from_o our_o author_n table_n i._o ☉_o apog_n ☽_o apog_n  _fw-fr min._n sec._n  _fw-fr the_o semidiameter_n of_o the_o sun_n 15_o 0_o age_n the_o horizontal_n parallax_n of_o the_o sun_n 3_o 0_o agf_n the_o semiang_n of_o the_o cone_n of_o the_o shall_v 12_o 0_o fge_n ade_n the_o horizontal_n paral._n of_o the_o moon_n 59_o 9_o bhg_n the_o semidiameter_n of_o the_o shadow_n 43_o 0_o hgn_n the_o semiangle_n of_o the_o cone_n 16_o 9_o onp_n ade_n differ_v from_o the_o former_a 4_o min._n 9_o sec_fw-la whereto_o it_o shall_v be_v equal_a ii_o ☉_o apog_n ☽_o perig._n the_o semidiameter_n of_o the_o sun_n 15′_n 0″_n agf_n the_o horizontall_a paral._n of_o the_o sun_n 3_o 0_o agf_n the_o semiangle_n of_o the_o cone_n 12_o 0_o fge_n ade_n the_o horizontal_n paral._n of_o the_o moon_n 62_o 39_o bpg_n the_o semidiameter_n of_o the_o shadow_n 47_o 0_o bpk_n the_o semiangle_n of_o the_o cone_n 15_o 39_o kpg_n ade_n differ_v from_o the_o former_a 3_o min._n 39_o sec_fw-la whereto_o it_o shall_v be_v equal_a iii_o ☉_o perig._n ☽_o apog_n the_o semidiameter_n of_o the_o sun_n 15′_n 30″_n the_o horizontall_a parallax_n of_o the_o sun_n 3_o 0_o the_o semiangle_n of_o the_o cone_n 12_o 30_o the_o horizontall_a parallax_n of_o the_o moon_n 59_o 9_o the_o semidiameter_n of_o the_o shadow_n correct_v 42_o 32_o the_o semiangle_n of_o the_o cone_n 16_o 37_o differ_v from_o the_o former_a 4_o min._n 7_o sec_fw-la whereto_o it_o shall_v be_v equal_a four_o ☉_o perig._n ☽_o perig._n the_o semidiameter_n of_o the_o sun_n 15_o 30_o the_o horizontall_a parallax_n of_o the_o sun_n 3_o 0_o the_o semiangle_n of_o the_o cone_n 12_o 30_o the_o horizontall_a parallax_n of_o the_o moon_n 62_o 39_o the_o semidiameter_n of_o the_o shadow_n correct_v 46_o 32_o the_o semiangle_n of_o the_o cone_n 16_o 7_o differ_v from_o the_o former_a 3_o min._n 37_o sec_fw-la whereto_o it_o shall_v be_v equal_a thus_o be_v our_o author_n table_n unmask_v and_o lay_v open_a to_o the_o view_n of_o every_o artist_n their_o disagreement_n to_o the_o demonstration_n be_v so_o great_a as_o no_o physical_a salve_n that_o can_v reasonable_o be_v apply_v be_v sufficient_a to_o counterpoise_v these_o difference_n in_o every_o one_o of_o these_o positure_n if_o we_o grant_v our_o author_n their_o number_n it_o will_v follow_v that_o the_o semiangle_n of_o the_o cone_n be_v great_a than_o the_o semidiameter_n of_o the_o sun_n which_o be_v as_o if_o we_o shall_v affirm_v that_o fge_n part_n of_o the_o angle_n age_n be_v great_a than_o the_o whole_a angle_n which_o be_v absurd_a and_o impossible_a but_o who_o can_v tell_v whether_o or_o no_o our_o author_n desire_n of_o exterior_a help_n have_v furnish_v they_o of_o spectacle_n fit_a for_o a_o great_a age_n than_o their_o own_o which_o amplify_a the_o semiangle_n of_o the_o cone_n make_v it_o appear_v so_o much_o too_o big_a for_o the_o room_n whereon_o it_o stand_v and_o yet_o unlucky_a do_v not_o amplify_v the_o room_n withal_o hence_o likewise_o will_v follow_v that_o the_o sun_n distance_n from_o the_o earth_n be_v not_o only_o infinite_a but_o if_o we_o may_v so_o say_v a_o degree_n beyond_o infiniteness_n and_o yet_o with_o much_o confidence_n can_v they_o proceed_v to_o determine_v as_o we_o shall_v show_v anon_o the_o distance_n of_o the_o sun_n from_o the_o earth_n in_o mile_n whereas_o it_o appear_v by_o their_o table_n no_o such_o distance_n be_v ever_o possible_a to_o be_v define_v and_o their_o very_a distance_n there_o set_v down_o be_v not_o only_o disconsonant_a to_o the_o truth_n but_o also_o to_o their_o own_o erroneous_a assumption_n hence_o will_v also_o follow_v that_o the_o sun_n be_v horizontall_a parallax_n be_v not_o only_o nothing_o but_o even_o less_o than_o nothing_o contrary_a to_o the_o five_o theorem_a which_o how_o we_o shall_v salve_v i_o know_v not_o unless_o we_o shall_v imagine_v that_o the_o sunbeam_n pass_v through_o the_o crystalline_a orb_n of_o the_o inferior_a planet_n find_v in_o their_o journey_n a_o burn_a point_n wherein_o the_o several_a ray_n concur_v and_o invert_v the_o species_n of_o the_o object_n so_o that_o hereby_o the_o property_n of_o the_o sun_n parallax_n come_v to_o change_v but_o i_o never_o hear_v that_o this_o be_v the_o confirm_a experiment_n of_o any_o optist_n and_o be_o of_o opinion_n that_o our_o author_n never_o dream_v they_o shall_v have_v stand_v in_o need_n of_o such_o supporter_n as_o these_o for_o their_o new_a table_n yet_o have_v they_o in_o the_o title_n page_n speak_v more_o true_o than_o they_o think_v in_o these_o word_n nothing_o of_o this_o nature_n be_v extant_a in_o the_o english_a tongue_n for_o scarce_o shall_v we_o find_v any_o such_o absurdity_n drop_v from_o a_o pen_n that_o profess_v to_o be_v able_a to_o perform_v so_o much_o i_o may_v here_o urge_v the_o diagram_n further_o and_o from_o
unequal_a progression_n of_o the_o sun_n in_o the_o zodiac_n occosion_v by_o his_o eccentricity_n the_o difference_n of_o which_o diurnal_a arch_n from_o the_o arch_n of_o his_o diurnal_a mean_a motion_n 59_o m._n 8_o s_o c_o be_v the_o diurnal_a aequation_n yet_o must_v both_o this_o and_o the_o former_a part_n of_o aequation_n be_v convert_v into_o time_n before_o it_o be_v fit_a for_o use_v yet_o have_v tycho_n and_o the_o most_o of_o his_o follower_n reject_v the_o late_a part_n of_o the_o equation_n who_o authority_n have_v also_o draw_v our_o author_n into_o their_o number_n none_o of_o they_o show_v any_o reason_n for_o their_o so_o do_v herein_o but_o this_o that_o their_o restitution_n of_o the_o moon_n motion_n and_o the_o observation_n of_o eclipse_n do_v seem_v to_o require_v it_o but_o this_o empeiricall_a way_n can_v never_o be_v true_a because_o it_o satisfy_v not_o the_o exactness_n of_o demonstration_n and_o who_o can_v affirm_v that_o they_o have_v so_o restore_v the_o celestial_a motion_n as_o that_o we_o may_v rather_o trust_v they_o then_o our_o alone_a sense_n experience_n be_v indeed_o the_o lady_n precedent_n of_o vrania_n republic_n and_o merit_n regard_v so_o long_o as_o she_o prosecute_v the_o mandate_n of_o demonstration_n the_o supreme_a authority_n but_o when_o once_o their_o result_v agree_v not_o experience_n must_v yield_v and_o resign_v her_o power_n to_o demonstration_n chap._n viii_o our_o author_n determination_n of_o the_o distance_n of_o celestial_a body_n from_o the_o earth_n examine_v i_o shall_v not_o need_v to_o particularize_v the_o star_n and_o planet_n several_o a_o example-will_a be_v sufficient_a to_o demonstrate_v the_o insufficienty_n of_o the_o rest_n we_o begin_v with_o the_o earth_n who_o dimension_n since_o our_o author_n have_v not_o here_o set_v down_o we_o must_v borrow_v from_o another_o place_n in_o master_n wing_n almanac_n 16●8_n the_o circumference_n be_v give_v 21600._o mile_n and_o to_o this_o the_o conversion_n of_o degree_n into_o mile_n vran._n pract._n par_fw-fr 5_o cha_z 3_o do_v agree_v whence_o he_o have_v form_v the_o semidiamiter_n 3436._o mile_n which_o nevertheless_o be_v not_o exact_o true_a for_o as_o 314159._o be_v to_o 100000._o of_o this_o see_v ludolphus_n van_fw-mi culen_n and_o lansberge_n de_fw-fr cyclemetria_n so_o be_v the_o cireumference_n 21600._o to_o the_o diameter_n 6875½_n and_o so_o be_v the_o semidiamiter_n 3437¾_n but_o we_o will_v take_v his_o number_n 3436._o and_o see_v how_o the_o rest_n agree_v thereto_o we_o find_v cap._n 4._o par_fw-fr 4._o that_o the_o mean_a distance_n of_o saturn_n from_o the_o earth_n be_v according_a to_o argol_n 10571._o semidiameter_n which_o make_v if_o we_o will_v believe_v our_o author_n 9091960._o mile_n but_o he_o that_o shall_v multiply_v the_o number_n of_o semidiameter_n 10571._o by_o the_o number_n of_o mile_n in_o one_o semidiameter_n 3436._o shall_v find_v another_o number_n namely_o 36321956._o so_o likewise_o in_o jupiter_n 3990._o multiply_v by_o 3436._o give_v 13709640._o not_o 343120_o and_o in_o mars_n also_o 1745._o multiply_v by_o 3436._o give_v 5995820._o not_o 1500700_o in_o the_o sun_n the_o distance_n in_o semidiameter_n of_o the_o earth_n be_v not_o give_v the_o distance_n be_v in_o mile_n 989000_o which_o be_v divide_v by_o 3436._o give_v the_o distance_n in_o semidiameter_n 287⅔_n which_o give_v the_o horizontall_a parallax_n almost_o 12_o min._n four_o time_n as_o big_a as_o that_o which_o our_o author_n have_v give_v in_o their_o table_n of_o eclipse_n i_o will_v spend_v no_o more_o time_n in_o reckon_v up_o the_o rest_n i_o hope_v these_o error_n obvious_a to_o every_o schoolboy_n be_v sufficient_a to_o manifest_v the_o likeness_n and_o 〈◊〉_d 〈◊〉_d 〈◊〉_d 〈◊〉_d 〈◊〉_d of_o the_o rest_n but_o in_o regard_v our_o author_n be_v so_o careful_a of_o the_o common_a good_a that_o over_o and_o beside_o this_o work_n of_o urania_n practica_fw-la master_n wing_n have_v public_o invite_v those_o that_o desire_v to_o be_v satisfy_v in_o any_o thing_n touch_v the_o mathematics_n to_o repair_v to_o his_o judgement_n for_o satisfaction_n and_o because_o he_o be_v hold_v a_o man_n of_o much_o dexterity_n in_o these_o science_n i_o shall_v make_v bold_a to_o propound_v unto_o he_o and_o his_o 〈◊〉_d 〈◊〉_d 〈◊〉_d 〈◊〉_d 〈◊〉_d master_n william_n leybourne_n a_o question_n or_o two_o and_o upon_o their_o answer_n shall_v be_v ready_a to_o content_v they_o for_o their_o pain_n 1._o i_o shall_v inquire_v how_o the_o proportion_n of_o the_o fix_a star_n to_o the_o earth_n page_n 173._o be_v gather_v and_o a_o demonstration_n that_o ●hose_v of_o the_o five_o several_a magnitude_n be_v so_o many_o time_n great_a than_o the_o earth_n as_o be_v there_o set_v down_o and_o also_o how_o those_o of_o the_o six_o magnitude_n be_v find_v to_o be_v less_o than_o the_o earth_n i_o shall_v also_o demand_v how_o those_o of_o every_o several_a magnitude_n be_v approve_v to_o be_v so_o many_o in_o number_n as_o they_o be_v there_o give_v and_o no_o more_o 2._o i_o shall_v desire_v to_o know_v how_o and_o in_o what_o man_v the_o ancient_n have_v demonstrate_v the_o distance_n of_o the_o heaven_n by_o fix_a star_n from_o the_o earth_n to_o be_v 130715000_o mile_n or_o indeed_o whether_o any_o such_o demonstration_n can_v be_v make_v now_o that_o the_o sphere_n be_v find_v no_o less_o fluid_a and_o penetrable_a than_o this_o air_n of_o we_o 3._o i_o shall_v desire_v to_o know_v how_o the_o planet_n distance_n from_o the_o earth_n be_v gather_v or_o whether_o the_o analogy_n of_o tycho_n and_o the_o so_o much_o mention_v argol_n be_v ground_v upon_o sufficient_a principle_n or_o no_o or_o whether_o those_o apparent_a diameter_n of_o the_o planet_n which_o our_o author_n have_v borrow_v from_o tycho_n be_v consentaneous_a to_o the_o truth_n or_o no_o it_o be_v propable_a that_o the_o ray_n of_o the_o star_n illuminate_v the_o air_n they_o pass_v through_o make_v they_o appear_v far_o big_a than_o indeed_o they_o be_v and_o let_v my_o author_n know_v that_o i_o will_v not_o suffer_v myself_o to_o be_v overrule_v with_o the_o authority_n of_o any_o writer_n unless_o his_o reason_n have_v a_o great_a authority_n than_o his_o name_n and_o judgement_n tread_v on_o the_o heel_n of_o invention_n chap._n ix_o a_o brief_a summary_n of_o some_o other_o defect_n and_o imperfection_n but_o my_o room_n grow_v narrow_a and_o so_o ty_v my_o discourse_n to_o a_o period_n good_a reader_n be_v please_v to_o take_v the_o rest_n of_o my_o collection_n in_o a_o bundle_n i_o shall_v only_o tell_v you_o what_o it_o contain_v and_o will_v if_o my_o profess_a brevity_n have_v grant_v i_o leave_v have_v lay_v open_a the_o several_a piece_n to_o your_o view_n first_o i_o s●y_v that_o by_o our_o author_n rule_n the_o sun_n altitude_n can_v be_v gather_v universal_o for_o though_o the_o example_n pag_n 99_o be_v true_o wrought_v yet_o if_o we_o turn_v to_o the_o fix_a book_n for_o a_o precept_n we_o shall_v find_v none_o but_o only_o a_o few_o concise_a table_n calculate_v for_o some_o latitude_n which_o be_v too_o narrow_a and_o insufficient_a for_o he_o who_o intention_n be_v for_o narrow_a and_o insufficient_a for_o he_o who_o intention_n be_v for_o generality_n and_o exactness_n second_o the_o tedious_a calculation_n of_o the_o moon_n paralax_n in_o her_o circle_n of_o altitude_n detract_v from_o the_o praise_n of_o the_o book_n and_o may_v have_v be_v with_o far_o more_o ease_n and_o by_o the_o only_a help_n of_o the_o logarithm_n supply_v thus_o as_o the_o radius_fw-la to_o the_o sine_fw-la of_o the_o horizontall_a parallax_n so_o the_o cousin_n of_o the_o luminury_n altitude_n to_o the_o sine_fw-la of_o the_o parallax_n in_o that_o altitude_n this_o way_n be_v no_o less_o demonstrative_a and_o far_o more_o easy_a than_o the_o other_o which_o our_o author_n have_v use_v pag._n 99_o 3._o that_o the_o table_n of_o hourly_a motion_n of_o the_o moon_n from_o the_o sun_n pag._n 118._o can_v be_v exact_o true_a because_o it_o suppose_v the_o sun_n motion_n to_o be_v equal_a and_o still_o of_o the_o same_o quantity_n which_o nevertheless_o by_o reason_n of_o his_o eccentricity_n be_v not_o so_o nor_o can_v be_v affirm_v 4._o the_o herozontall_a parallax_n of_o the_o sun_n be_v not_o still_o 3._o min._n o._n sec_fw-la according_a to_o the_o paper_n adjoin_v to_o the_o end_n of_o pag._n 118._o but_o if_o that_o be_v his_o parallax_n in_o his_o mean_a distance_n the_o apogaean_a parallax_n be_v 2._o min._n 53._o sec_fw-la the_o perigaean_a parallax_n 3._o min._n 7._o sec_fw-la according_a to_o our_o author_n eccentricity_n 5._o i_o affirm_v no_o eclipse_n of_o sun_n or_o moon_n can_v be_v true_o calculate_v if_o we_o use_v no_o other_o rule_n than_o what_o our_o author_n have_v give_v we_o for_o it_o appear_v not_o whether_o they_o have_v use_v any_o