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Word A Word B Word C Word D Occurrence Frequency Band MI MI Band Prominent
earth_n great_a sun_n time_n 5,222 5 4.3412 3 true
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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

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motion_n of_o mars_n to_o these_o reason_n i_o may_v add_v also_o the_o continue_a observation_n of_o tycho_n in_o eclipse_n which_o clear_a the_o moon_n of_o any_o secondary_a inequality_n at_o the_o time_n of_o defect_n which_o be_v the_o true_a not_o mean_a syzigia_n of_o the_o luminary_n but_o to_o this_o i_o can_v impute_v any_o great_a force_n the_o difference_n be_v so_o little_a as_o it_o be_v hardly_o to_o be_v distinguish_v from_o those_o many_o irregularity_n which_o attend_v on_o the_o propinquity_n of_o the_o moon_n to_o the_o earth_n and_o of_o we_o in_o these_o northern_a region_n by_o reason_n of_o the_o great_a obliquity_n of_o our_o sphere_n more_o perceive_v nor_o can_v we_o as_o yet_o think_v the_o manifold_a motion_n of_o this_o inconstant_a torrella_n so_o thorough_o know_v as_o we_o can_v for_o the_o present_a build_v any_o certainty_n hereon_o i_o doubt_v not_o but_o that_o astronomia_fw-la brittannica_fw-la now_o by_o the_o blessing_n of_o god_n almost_o bring_v to_o perfection_n will_v short_o take_v away_o many_o doubt_n herein_o which_o have_v hithereto_o puzzle_v divers_a artist_n and_o i_o doubt_v not_o but_o i_o shall_v discover_v some_o thing_n concern_v the_o moon_n motion_n which_o may_v be_v useful_a for_o astronomer_n in_o this_o subject_n and_o more_o rational_a than_o those_o impertinency_n our_o author_n have_v here_o deliver_v for_o they_o be_v out_o of_o all_o possibility_n of_o be_v excuse_v that_o in_o such_o a_o clear_a sunshine_n will_v impudent_o adventure_v to_o set_v out_o their_o dim_a lantern_n for_o a_o guide_n to_o the_o young_a practitioner_n through_o these_o mysterious_a labyrinth_n especial_o such_o a_o worthy_a luminary_n as_o kepler_n have_v long_o since_o put_v all_o out_o of_o doubt_n and_o teach_v truth_n to_o move_v in_o she_o own_o orb_n not_o impedit_v by_o the_o adventitious_a remora_n of_o humane_a fancy_n chap._n vi_o a_o demonstrative_a examination_n of_o our_o author_n table_n of_o eclipse_n 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rest_n to_o astronomia_fw-la brittannica_fw-la where_o it_o be_v full_o demonstrate_v and_o the_o manifold_a use_n thereof_o declare_v in_o the_o diagram_n annex_v let_v a_o be_v the_o centre_n of_o the_o sun_n c_o of_o the_o perigaean_a shadow_n h_n of_o the_o apogaean_a shadow_n b_o of_o the_o earth_n so_o be_v the_o apparent_a semidiameter_n of_o the_o sun_n abe_n of_o the_o perigaean_a shadow_n cbp_n of_o the_o apogaean_a shadow_n hbn_n the_o vertex_fw-la of_o the_o conical_a shadow_n d_o the_o semiangle_n thereof_o bdg_n the_o axis_fw-la bd_o let_v the_o line_n gf_n pk_v no_o be_v parallel_n to_o da_fw-la the_o semidiameter_n of_o the_o earth_n bg_n the_o centre_n of_o the_o moon_n l_o the_o semidiameter_n of_o the_o moon_n in_o the_o change_n lbm_n the_o horizontal_n paralax_n of_o the_o sun_n bag_n of_o the_o moon_n blg_n whence_o we_o thus_o proceed_v i._o the_o semiangle_n of_o the_o cone_n of_o the_o shadow_n be_v always_o less_o than_o the_o sun_n be_v apparent_a 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they_o be_v not_o 〈◊〉_d 〈◊〉_d 〈◊〉_d 〈◊〉_d 〈◊〉_d precise_o so_o for_o i_o shall_v show_v how_o inconsiderable_a a_o difference_n this_o be_v and_o how_o far_o it_o avoid_v our_o observation_n for_o if_o we_o take_v the_o angle_n ade_n or_o which_o be_v the_o same_o kpg_n to_o be_v 12_o min._n o_o sec_fw-la which_o follow_v from_o our_o author_n number_n for_o by_o the_o first_o theorem_a age_n 15_o min._n o_o sec_fw-la agf_n 3_o min._n o_o sec_fw-la fge_n ade_n 12_o min._n o_o sec_fw-la the_o natural_a tangent_fw-la thereof_o be_v 349067_o kg_n we_o shall_v also_o from_o our_o author_n table_n take_v the_o apparent_a semidiameter_n of_o the_o shadow_n cbp_n or_o bpk_v to_o be_v 47_o min._n o_o sec_fw-la which_o be_v the_o great_a they_o set_v down_o it_o be_v tangent_fw-la be_v bk_n 1367260._o the_o sum_n of_o the_o angle_n be_v bpg_n 59_o min._n o_o sec_fw-la the_o sum_n of_o the_o tangent_n be_v bg_n 1716327._o whereto_o answer_v the_o angle_n bcg_n 58_o min._n 59_o sec_fw-la 50_o