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SymbolSource Strings
histori_astronomi history astronomy , histories astronomy , history astronomie  
gener_histori general history  
circumfer_earth circumference earth  
round_sun round sun  
de_la de la , de las  
astronomi_georg astronomy george  
determin_posit determine positions , determining positions , determined positions , determine position  
progress_astronomi progress astronomy  
rotat_sun rotation sun , rotated sun , rotating sun , rotating suns  
revolutionibu_orbium revolutionibus orbium  
revolv_round revolves round , revolving round , revolve round , revolved round  
centuri_aristotl century aristotle  
copernican_theori copernican theory  
armillari_sphere armillary sphere , armillary spheres  
motion_ptolemi motion ptolemy  
accuraci_observ accuracy observations , accuracy observation , accuracy observed  
proport_cube proportional cube , proportional cubes  
ancient_histori ancient history  
determin_longitud determination longitude , determining longitude , determine longitude  
sun_centr sun centre , sun centres  
made_great made great  
month_30 months 30 , month 30  
le_verrier le verrier  
12_month 12 months , 12 month  
consid_motion considered motions , considering motion  
eratosthen_measur eratosthenes measured , eratosthenes measures  
2000_b.c 2000 b.c  
learn_men learned men  
half_centuri half century , half centuries  
squar_period square period , squares periods , square periodic , squares periodic  
sphere_planet spheres planets , sphere planets , spheres planet  
complet_revolut complete revolution , complete revolutions  
made_major made major  
made_astronom made astronomical , made astronomer  
complet_cycl completing cycle , complete cycle , completes cycle  
ptolemi_copernicu ptolemy copernicus  
mathematician_time mathematicians time  
uniform_circular uniform circular  
astronomi_galileo astronomy galileo  
ptolema_system ptolemaic system  
alexand_great alexander great  
suggest_earth suggested earth , suggests earth , suggest earth , suggestion earth  
frederick_ii frederick ii  
servic_astronomi service astronomy  
improv_telescop improved telescope , improved telescopes , improvements telescope , improvement telescope , improve telescope , improved telescopic  
astronomi_begin astronomy beginning , astronomy beginnings , astronomy begins , astronomy begin  
primit_astronomi primitive astronomy  
great_work great work , great works  
chines_record chinese records , chinese record , chinese recorded  
rudolphin_tabl rudolphine tables  
histori_astronom history astronomical , history astronomers  
christma_dai christmas day  
systemat_observ systematic observations , systematic observation , systematic observational , systematically observe  
made_discoveri made discoveries , made discovery  
star_rise stars rise , star rises , stars rising , star rise , star rising  
stellar_observ stellar observations  
astronomi_great astronomy great  
rel_motion relative motion , relative motions , relativity motion  
circl_defer circle deferent , circles deferents  
galilei_1564-1642 galilei 1564-1642  
2_histori 2 history  
star_year stars year  
astronom_ptolemi astronomers ptolemy , astronomer ptolemy  
found_star found stars  
astronomi_copernicu astronomy copernicus  
astronomi_newton astronomy newton  
500_b.c 500 b.c  
satellit_discov satellite discovers , satellites discovered , satellite discovered  
brahe_1546-1601 brahe 1546-1601  
law_order law order , laws order  
astronom_scienc astronomical science , astronomical sciences  
place_moon place moon , places moon  
newton'_work newton's work  
earth_sphere earth sphere  
system_world system world , systems world  
sphere_star sphere stars  
spectral_type spectral types , spectral type  
astronom_determin astronomers determine , astronomer determined  
observ_period observations period , observed period , observers period , observed periods  
compar_earth compared earth  
human_knowledg human knowledge  
sister_carolin sister caroline  
scientif_work scientific work  
number_year number year , number years , numbering years  
forc_act force acting , force acts , forces acting , force act  
observ_discov observes discovers , observations discovered  
system_origin system original , system originated , system originally , system origin  
nebular_hypothesi nebular hypothesis  
eclips_determin eclipses determining  
daili_motion daily motion , daily motions  
outlin_astronomi outline astronomy , outlines astronomy  
comet_observ comet observed , comets observed , comets observations  
rel_distanc relative distances , relative distance  
astronomi_middl astronomy middle  
septemb_10 september 10  
earth_centr earth centre  
dark_spot dark spots , dark spot  
kepler_1571-1630 kepler 1571-1630  
astronomi_centuri astronomy centuries , astronomy century  
dai_long days long , day long  
centuri_astronom century astronomers , centuries astronomical , centuries astronomers , century astronomical  
brahe_kepler brahe kepler  
method_determin method determining , method determination , methods determining  
major_axi major axis  
alexandrian_school alexandrian school  
period_year period years  
forc_bodi force body , force bodies  
9_histori 9 history  
account_observ account observed , account observations , accounted observations , accounting observed  
fix_earth fixed earth  
observatori_erect observatory erected  
degre_accuraci degree accuracy  
predict_place predicting places , predicting place , predicted place , predict place , predicted places  
gratefulli_acknowledg gratefully acknowledge  
accur_place accurate placing , accurate places  
8_histori 8 history  
compar_short comparatively short  
book_illustr book illustrations , books illustrated  
answer_purpos answered purpose  
planet_circular planets circular  
human_intellect human intellect  
orbit_complet orbits complete , orbit completely  
planet_time planets times , planet time  
discoveri_precess discovery precession  
planet_period planets period , planet period  
forc_sun force sun , forces sun  
applic_newton' applications newton's , application newton's , applicability newton's  
work_hipparchu works hipparchus , work hipparchus  
lunar_tabl lunar tables  
system_calendar systems calendars , system calendar , system calendars  
12_year 12 years , 12 year  
abl_differenti able differentiate  
eighteenth_centuri eighteenth century , eighteenth centuries  
bodi_revolv bodies revolve , body revolve , body revolving  
deduc_law deduced laws , deducing law , deduce law , deduce laws  
translat_english translated english , translation english  
rest_life rest life  
earth_water earth water , earth watered  
astronomi_cover astronomy covering , astronomy covered , astronomy covers , astronomy cover  
comet_return comet return , comet returns , comet returned , comet returning  
discov_venu discovered venus , discover venus  
great_discoveri great discoveries , great discovery  
eclips_comet eclipses comets , eclipse comet , eclipse comets  
focal_length focal length  
water_earth water earth  
tower_pisa tower pisa  
oldest_date oldest dates  
catalogu_star catalogue stars , catalogues stars , catalogue star , catalogued stars , cataloguing stars  
place_planet places planets , place planet , placing planets  
herschel_discov herschel discovered , herschel discover , herschel discovers  
night_equal night equal  
novemb_13 november 13  
telescop_open telescope opened , telescopes opened , telescopes open  
cycl_26 cycle 26  
reform_calendar reforms calendar , reform calendar  
year_studi years study , years studying , year study , years studies , year studying  
13_month 13 months  
instrument_made instruments made , instrument made  
determin_solar determination solar , determine solar , determinations solar , determining solar  
star_appar stars apparently  
6_histori 6 history  
move_object moving object  
centuri_note centuries noted , centuries note , century noted  
german_astronom german astronomer , german astronomical , german astronomers  
astronomi_long astronomy long  
system_greek system greek , systems greeks  
posit_line position line , positions lines  
centuri_produc century produce , century produced  
tycho'_observ tycho's observations  
problem_bodi problem bodies  
brahe_tycho brahe tycho  
time_made time made , times made  
mean_motion mean motion , mean motions  
motion_time motion timed , motion time  
exact_scienc exact sciences  
studi_mathemat studied mathematics , study mathematical , study mathematics  
sir_thoma sir thomas  
observ_nebula observations nebulae , observed nebulae , observation nebulae  
summer_winter summer winter  
dai_sun day sun , days sun  
full_text full text  
4_histori 4 history  
made_instrument made instruments  
john_couch john couch  
6_hour 6 hours  
constel_cassiopeia constellation cassiopeia  
astronomi_7 astronomy 7  
exact_observ exact observation  
continu_observ continued observation , continued observations , continuing observations , continuous observations , continuous observation , continue observer , continued observe  
couch_adam couch adams  
axi_orbit axis orbit , axis orbital , axis orbited  
conjunct_planet conjunction planets , conjunctions planets  
motion_assum motions assumed , motion assumed , motion assuming  
thirti_year thirty years  
copernicu_suggest copernicus suggested , copernicus suggests , copernicus suggestion  
motion_solar motion solar , motions solar  
practic_applic practical application , practical applications  
applic_mathemat application mathematics , applications mathematical  
year_period year period , years period  
averag_distanc average distance  
astronom_align astronomical alignments , astronomical alignment , astronomically aligned  
camil_flammarion camille flammarion  
spare_time spare time  
process_evolut process evolution , processes evolution  
constel_hercul constellation hercules  
till_time till time  
alphonsin_tabl alphonsine tables  
kepler_johann kepler johannes , kepler johann  
sun_fix sun fixed  
year_publish years published , year published  
result_investig result investigations , results investigations , result investigators  
john_herschel john herschel  
visibl_2000 visible 2000  
astronomi_consist astronomy consistently , astronomy consisted , astronomy consists  
support_view support view , supported view , supporting views  
move_uniformli moves uniformly  
lunat_dai lunations day , lunations days  
motion_due motion due  
sun_situat sun situated , sun situate  
month_thirti months thirty  
music_art musical arts , music arts  
mede_lydian medes lydians  
432_b.c 432 b.c  
date_assign date assigned , dates assigned  
system_venu system venus  
centr_earth centre earth , centred earth  
observ_accur observations accurate  
great_man great man  
node_regress node regress , nodes regress  
direct_appar direction apparent  
posit_rel position relative  
astronom_reli astronomers relied , astronomers relying , astronomers rely  
length_tropic length tropical  
pass_point pass points , passing points , passing point , pass point  
230_b.c 230 b.c  
total_direct totally direction  
epicycl_centr epicycle centre , epicycle centred , epicycles centres  
partial_correct partially corrected , partially correct  
sun_i. sun i.e  
edit_publish edition published , editions published , edits publishes  
pre_histori pre history  
real_exist real existence  
comput_tabl computed tables , compute table , computes table , compute tables  
made_small made small  
motion_hallei motion halley  
divid_twelv divided twelve  
zodiac_posit zodiac positions , zodiacal positions  
223_lunat 223 lunations  
altitud_sun altitude sun  
astronomi_chines astronomy chinese  
star_month stars month , star months  
system_suppos system supposed , system suppose  
earth'_pole earth's pole , earth's poles  
node_orbit node orbit  
chromat_aberr chromatic aberration  
observ_undertaken observations undertaken  
result_work result work , results work , result works  
observatori_photograph observatory photographic , observatory photograph , observatory photographs  
centuri_claim century claimed , centuries claimed  
egyptian_templ egyptian temples  
ptolemi_time ptolemy time  
year_1 year 1 , years 1  
mark_time marks time , marking time , marked time  
stone_fall stone fall , stone falling  
earth_back earth back , earth backed  
societi_found society founded  
opposit_mar opposition mars , oppositions mars  
draw_sun drawing sun , draws sun  
henri_draper henry draper  
proceed_comput proceeded compute  
earliest_reliabl earliest reliable  
time_comput times computed , time computers , time computed  
star_case star case  
work_direct work direction  
long_held long held  
3_histori 3 history  
discov_star discovers star , discovered stars , discovers stars , discover star  
disciplin_long discipline long  
long_interwoven long interwoven  
data_astrolog data astrological , data astrology  
work_astronomi works astronomy , work astronomy  
earth'_motion earth's motion  
vestig_found vestiges found  
astronomi_come astronomy comes , astronomy come  
forti_year forty years  
societi_british society british , societies british  
found_tycho' found tycho's , founded tycho's  
star_fact stars fact , star facts , star fact  
du_mond du monde  
earth_spheric earth spherical , earths spherical  
time_ptolemi time ptolemy  
•_• • •  
consist_accur consistently accurate , consisting accurate  
astronom_note astronomical note , astronomers noted , astronomers note , astronomer note , astronomer noted  
modern_observ modern observations , modern observation  
moon_discov moon discovered , moons discovered  
motion_histor motions historical , motion historical , motion historic  
involv_studi involve study , involved studying , involving study , involved study  
autumn_equinox autumn equinox , autumnal equinox  
forc_direct force direction , force directed , forces direct , forces directed  
great_advanc great advance , great advances  
wander_star wandering stars  
calcul_orbit calculate orbits , calculate orbit , calculation orbits , calculated orbit , calculation orbit , calculating orbits  
lean_tower leaning tower  
mathematician_astronom mathematician astronomer , mathematicians astronomers  
observ_describ observe describe , observations describing , observation describing , observations describe  
year_cycl year cycle  
saturn_ring saturn ring , saturn rings  
southern_star southern stars  
astronomi_practic astronomy practiced , astronomy practical  
heavenli_sphere heavenly spheres , heavenly sphere  
solar_promin solar prominences , solar prominence  
system_heliocentr system heliocentric , system heliocentrism  
vast_major vast majority  
georg_elleri george ellery  
star_catalogu star catalogue , star catalogues , stars catalogues , stars catalogued , stars catalogue  
motion_celesti motions celestial , motion celestial  
circular_orbit circular orbits , circular orbit  
astronom_theori astronomical theory , astronomical theories , astronomers theories , astronomers theory  
stellar_parallax stellar parallax , stellar parallaxes  
star_larg star large , stars large  
fact_life facts life  
william_huggin william huggins  
book_poetri books poetry  
time_fact times fact , time fact  
depend_distanc depending distance , depends distance , dependent distance  
distanc_law distance law , distance laws  
prove_case proved case , prove case  
argument_favour arguments favour  
orbit_pass orbits pass , orbits passing  
astronom_tycho astronomer tycho  
observ_improv observations improved  
2_degre 2 degrees  
observatori_found observatory founded , observatory found  
astronomi_regard astronomy regarded  
wren_hallei wren halley  
attract_sun attraction sun  
calcul_place calculated place  
power_analysi powerful analysis , powers analysis  
written_astronom written astronomers , written astronomical  
size_2 size 2  
astronomi_sai astronomy say  
revolv_earth revolve earth , revolved earth , revolves earth , revolving earth  
posit_time positions time , position time  
earth'_axi earth's axis  
develop_scienc development science , developing science , developed science  
measur_earth measure earth , measured earth , measurements earth , measurement earth , measurement earths  
sun_remain sun remain , sun remaining  
suggest_sun suggests sun , suggested sun , suggestive sun , suggesting sun  
student_histori students history  
observatori_instrument observatories instruments , observatory instruments , observatories instrument  
wind_earth winds earth , wind earth  
moon_revolv moon revolves , moons revolving , moon revolved , moon revolve  
order_account orders account , order account  
gener_reader general reader  
flamste_observ flamsteed observed , flamsteed observer  
relat_histori related history , relating history  
histor_time historical time , historical times , historic times  
6_year 6 years  
centuri_sir century sir  
board_longitud board longitude  
recent_time recent times  
venu_observ venus observations , venus observation  
discov_neptun discovers neptune , discovered neptune , discovering neptune  
india_china india china  
parallax_observ parallax observed , parallax observation  
improv_accuraci improve accuracy , improvement accuracy , improved accuracy  
save_time save time , saving time  
death_king death king  
st_andrew st andrews  
product_human productions human  
idea_held ideas held  
colleg_cambridg college cambridge  
complex_ptolema complexity ptolemaic , complex ptolemaic  
found_observ found observers , found observations , found observed , found observing  
cosmo_de cosmo de  
claim_observ claimed observations , claimed observers  
octob_5 october 5  
newton_theori newton theory , newton theories  
eudoxu_cnidu eudoxus cnidus  
conic_section conic sections , conic section  
februari_13 february 13  
determin_ratio determined ratio  
astronomi_28 astronomy 28  
moon_motion moon motions , moon motion  
call_zodiac called zodiac  
determin_correct determine correct , determining correcting  
astronomi_prove astronomy proved  
sun_put sun puts , sun put  
scienc_claim sciences claim , science claim  
moon_turn moon turn , moon turning , moon turns  
time_peopl times people , time people  
english_astronomi english astronomy  
place_sun placing sun , place sun  
offer_prize offered prize  
ellipt_path elliptical path , elliptical paths  
newton_made newton made  
axi_rotat axis rotation , axis rotates  
fairli_good fairly good  
list_astronom list astronomical , list astronomers  
mean_distanc mean distance , mean distances  
southern_itali southern italy  
newton_work newton work , newton working  
equal_time equal times , equal time  
histori_ancient history ancient  
theori_earth theory earth  
public_government public governmental  
phenomena_period phenomena periodic  
interwoven_public interwoven public  
complet_disentangl completely disentangled  
cultur_astronom cultures astronomical  
show_sun showed sun , showing sun , show sun , shows sun  
idea_import idea importance , ideas important , ideas imported  
time_motion timed motions , time motion , times motions  
variat_length variation length  
government_astronomi governmental astronomy  
time_galileo time galileo , times galileo  
great_pyramid great pyramid , great pyramids  
disentangl_centuri disentangled centuries  
ey_observ eye observations , eyes observed , eye observing  
observ_develop observation develop , observations developed , observations develop , observations development  
lunar_month lunar months , lunar month  
time_earli time early  
venu_exhibit venus exhibited , venus exhibit  
star_zenith stars zenith , star zenith  
solar_year solar year  
astronomi_complet astronomy completely , astronomy complete  
special_purpos special purposes , special purpose  
privat_observatori private observatories , private observatory  
sens_object senses objected  
chapter_chapter chapter chapter  
differ_latitud difference latitude  
star_give stars give , star give  
diamet_30 diameter 30  
pioneer_modern pioneered modern , pioneer modern  
equat_sun equator sun  
make_special make special  
physic_optic physics optics , physical optics  
unequ_motion unequal motions , unequal motion  
studi_eclips studying eclipses , studied eclipse  
collect_histori collecting history , collections history , collect history  
orbit_invis orbit invisible  
reason_abl reason able  
earth_suppos earth suppose , earth supposed , earth supposing  
work_year worked years , worked year , work years  
true_north true north  
univers_observatori university observatory , university observatories  
star_small stars small , star small  
due_astronom due astronomer , due astronomical  
select_text select text , selected text , selection text , selected texts  
year_consist years consistent , years consist  
venu_1 venus 1  
develop_system developed system , development systems  
sun'_altitud sun's altitude  
discov_fact discovered facts , discover fact  
planet_brighter planet brighter , planets brighter  
cassini_divis cassini division  
irregular_moon' irregularities moon's  
greater_accuraci greater accuracy  
calculu_discov calculus discovered  
system_bound system bound  
larg_extent large extent  
valu_constant values constants  
theori_begin theory beginning , theory beginnings  
observ_posit observations positions , observation positions , observation position , observed position  
brighter_star brighter stars , brighter star  
period_great period great  
meridian_method meridian method  
aristotl_believ aristotle believes , aristotle believed , aristotle believe  
cassini_director cassini director  
light_glow light glows , light glowing  
attribut_state attributed state , attributed states  
work_prove work proved , work prove  
success_complet successful completion  
religi_mytholog religious mythological  
state_scienc state science  
point_heaven point heavens  
due_earth' due earth's  
earli_chines early chinese  
theori_astronomi theories astronomy , theory astronomy  
rotat_jupit rotation jupiter  
greek_alphabet greek alphabet  
made_interest made interesting  
made_astronomi made astronomy  
centuri_centuri century centuries , century century , centuries centuries  
bright_sun brightness sun , bright sun  
direct_reflect direct reflection , directions reflect  
improv_lunar improvement lunar , improved lunar  
georg_iii george iii  
effect_earth' effect earth's , effects earth's  
septemb_17 september 17  
star_imag stars image , star image , star images , stars images  
moon_prove moon proved , moon proves  
observatori_pari observatory paris , observatories paris  
famou_law famous laws , famous law  
work_small work small  
gener_term general terms  
small_star small stars , small star  
astronomi_date astronomy dates , astronomy date , astronomy dating  
enorm_distanc enormous distances , enormous distance  
mural_circl mural circle  
oxford_cambridg oxford cambridge  
centr_cosmo centre cosmos , centre cosmo  
54_histori 54 history  
astronomi_/a astronomy /a , astronomie /a , astronomi /a  
unit_length unit length , units lengths  
case_moon case moon  
record_date recorded dated , recorded date  
egypt_india egypt india  
option_select option selected , option select , optional select , options selected  
histori_help history helped , history helping  
support_long support long  
time_try time trying , time try  
art_music arts music , art music  
place_rate place rate  
spectral_analysi spectral analysis  
publish_catalogu published catalogue , publishing catalogue , publishes catalogue  
axi_period axis period  
hold_planet holding planets , hold planets , holds planets  
great_measur great measure  
translat_arab translated arabic  
7_year 7 years  
predict_astronom predict astronomical , predictions astronomers , predicting astronomical , predictions astronomical  
scienc_date sciences dating , science dating  
line_advanc lines advanced , lines advance  
progress_made progress made  
element_prove elements proved , element proved  
work_theori work theory , working theory , work theories  
separ_group separate group  
newtonian_theori newtonian theory  
copernicu_tycho copernicus tycho  
number_dai number days , number day , numbers days  
airi airy  
syen syene  
pythagorean pythagoreans , pythagorean  
object_travel objects travel , objects travelling , object travel  
eleventh eleventh  
archiv_histori archive history , archives history  
observ_catalogu observing cataloguing , observations catalogue  
move_ellipt move elliptical , moving elliptical , moving elliptic , moved elliptical  
uraniborg uraniborg  
space_histori space history  
newton_born newton born  
harvard_observatori harvard observatory  
jeremiah_horrock jeremiah horrocks  
150_year 150 years  
observ_spectra observed spectra , observing spectra  
sky_visibl sky visible  
method_calcul methods calculations , methods calculating , method calculate , method calculating  
18_year 18 years  
year_made year made , years made  
vari_invers varying inversely , varying inverse , varies inversely , vary inversely  
light_prism light prism , light prisms  
physic_histori physics history  
st_helena st helena  
rel_bright relative brightness  
year_365 year 365 , years 365  
year_discoveri year discovery , years discovery , years discoveries  
solut_problem solution problem  
univers_greater universe greater  
discuss_recent discussion recent , discusses recent , discussed recent  
armillari armillary  
star_vega star vega  
face_earth facing earth , face earth , faces earth  
search_planet search planet  
moon_conjunct moon conjunction  
line_earth line earth  
appli_law applied law , applying law  
democritu democritus  
year_planet year planets , year planet , years planet  
major_planet major planets  
sun_larg sun large  
thousand_star thousand stars , thousands stars  
period_sun period sun  
chines_observ chinese observations  
work_observ work observation , work observed  
galileo_observ galileo observed , galileo observes , galileo observing , galileos observations  
dai_period days periods , days period , days periodic  
orbit_eclipt orbit ecliptic  
gave_rise gave rise  
sun_rotat sun rotates , sun rotating , sun rotate , sun rotation  
geometr_astronomi geometrical astronomy  
orbit_motion orbital motion , orbit motion , orbital motions , orbits motions  
arab_titl arabic title  
angular_distanc angular distance , angular distances  
explain_appar explain apparent , explained apparent  
astrolog_prognost astrological prognostication  
great_difficulti great difficulty , great difficulties  
found_moon found moon  
bodi_move body moving , bodies move , body move , bodies moving , body moves , bodies moved  
scienc_antiqu sciences antiquity  
world_system world systems , world system  
earth_round earth round  
moon_moon' moons moon's , moon moon's  
norman_lockyer norman lockyer  
law_planet law planets , laws planets  
posit_moon position moon , positions moon  
observ_note observations noting , observers noted , observed notes , observations notes , observing notes , observed noting  
astronomi_india astronomy india  
practic_astronom practical astronomical , practicing astronomer , practical astronomer  
believ_earth believed earth , believes earth , believe earth , believing earth  
number_modern numbers modern  
record_eclips record eclipses , recording eclipses , record eclipse , recorded eclipses  
care_observ careful observations , careful observation , careful observers , care observations , careful observer  
sextant sextant , sextants  
purpos_astrolog purposes astrologers  
observ_work observations work , observational work , observer worked  
reason_motion reasons motions , reason motion , reasoned motion  
younger_contemporari younger contemporary  
verrier verrier