The Geography of the Heavens, and Class Book of Astronomy; Accompanied by a Celestial Atlas |
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Page 35
... Triangles and the Northern Fish . It is situated between 20 ° and 50 ° of N. declination . Its mean right ascension is nearly 15 ° ; or one hour E. of the equinoctial colure . It consists of 66 visible stars , of which three are of the ...
... Triangles and the Northern Fish . It is situated between 20 ° and 50 ° of N. declination . Its mean right ascension is nearly 15 ° ; or one hour E. of the equinoctial colure . It consists of 66 visible stars , of which three are of the ...
Page 36
... triangle , S. of it . Nearly in a line with Almaack , Merach and Delta , out curving a little to the N. 70 farther , is a lone star of the 2d magnitude , in the head , called Alpheratz . This is the N. E. corner of the great " Square of ...
... triangle , S. of it . Nearly in a line with Almaack , Merach and Delta , out curving a little to the N. 70 farther , is a lone star of the 2d magnitude , in the head , called Alpheratz . This is the N. E. corner of the great " Square of ...
Page 37
... triangle , 30 ° and 40 ° in length , the open part of which is towards the N. W. When the Northern Fish is on the What are the size and position of the Northern Fish ? When , and how long is it on the meridian ? How may it be traced ...
... triangle , 30 ° and 40 ° in length , the open part of which is towards the N. W. When the Northern Fish is on the What are the size and position of the Northern Fish ? When , and how long is it on the meridian ? How may it be traced ...
Page 38
... Triangles . When , to enable the pupil to find any star , its direction from another is giver , the latter is always understood to be on the meridian . After a little experience with the maps , even though unaccompanied by rections ...
... Triangles . When , to enable the pupil to find any star , its direction from another is giver , the latter is always understood to be on the meridian . After a little experience with the maps , even though unaccompanied by rections ...
Page 42
... triangle , about 9 ° to the right of Alderamin . The mean polar distance of the constellation is 25 ° , while that of Alderamin is 28 ° 10 ' . The right ascension of the former is 338 ° ; consequently , it is 220 E. of the equi- noctial ...
... triangle , about 9 ° to the right of Alderamin . The mean polar distance of the constellation is 25 ° , while that of Alderamin is 28 ° 10 ' . The right ascension of the former is 338 ° ; consequently , it is 220 E. of the equi- noctial ...
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Common terms and phrases
3d magnitude 4th magnitude ancient angle appear Arcturus Argo Navis Aries astronomers Auriga axis Beta brightest called Cassiopeia celestial centre Cepheus circle cluster colure comet constellation Cor Caroli declination degree Delta Denebola Describe diameter direction distinguished diurnal motion Earth east ecliptic equal equator equinoctial figure fixed stars Gamma globe head heavenly bodies heavens Hercules Herschel horizon Jupiter latitude length Libra light longitude mean distance Mercury meridian millions of miles minutes Moon Moon's motion naked eye nearly nebulæ night node north pole northern hemisphere observed orbit Orion parallax passing perihelion period Perseus phenomena planets Pleiades polar star position principal star represented revolution revolve right ascension rise satellites Saturn seasons seen side sidereal Sirius situated small stars solar system solstice southern spots Sun's supposed surface Taurus telescope tion triangle Ursa Venus vernal equinox Virgo visible whole number Zeta Zodiac