The Geography of the Heavens and Class-book of Astronomy: Accompanied by a Celestial Atlas |
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Page 18
... 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 . 30. It consists of 66 visible stars , of which three are of ...
... 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 . 30. It consists of 66 visible stars , of which three are of ...
Page 19
... triangle , S. of it . Nearly in a line with Almaack , Merach and Delta , but curv- ing a little to the N. 7 ° farther , is a lone star of the 2d magni- tude , in the head , called Alpheratz ( a ) . This is the N.E. cor- ner of the great ...
... triangle , S. of it . Nearly in a line with Almaack , Merach and Delta , but curv- ing a little to the N. 7 ° farther , is a lone star of the 2d magni- tude , in the head , called Alpheratz ( a ) . This is the N.E. cor- ner of the great ...
Page 21
... triangle , 30 ° and 40 ° in length , the open part of which is towards the N. W. When the Northern Fish is on the meridian , the Western is nearly two hours past it . This constellation is bounded N. by 38. How trace the 89. From El ...
... triangle , 30 ° and 40 ° in length , the open part of which is towards the N. W. When the Northern Fish is on the meridian , the Western is nearly two hours past it . This constellation is bounded N. by 38. How trace the 89. From El ...
Page 22
... Triangles . When , to enable the pupil to find any star , its direction from another is given , the latter is always understood to be on the meridian . After a little experience with the maps , even though unaccompanied by directions ...
... Triangles . When , to enable the pupil to find any star , its direction from another is given , the latter is always understood to be on the meridian . After a little experience with the maps , even though unaccompanied by directions ...
Page 27
... 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 22 ° E. of the equinoctial ...
... 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 22 ° E. of the equinoctial ...
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Common terms and phrases
3d magnitude 4th magnitude angle aphelion appear Arcturus Aries astronomers Auriga axis Beta blue bright star called Cassiopeia celestial Cepheus circle cluster comet constellation Cor Caroli declination degree Delta Denebola diameter distant companion DOUBLE STAR Earth Earth's orbit east ecliptic equator equinoctial figure fixed stars Gamma head heavens hemisphere Herschel horizon Jupiter latitude light longitude luminous Map VIII mean distance Mercury meridian miles minutes Moon Moon's motion naked eye nearly NEBULA node north pole northern Number of stars o'clock observed Orion pale yellow parallax pass perihelion period planet Pleiades polar position principal star Refracting telescopes refraction remarkable represented revolution revolve right ascension rising satellites Saturn seen shadow sidereal Sirius situated small stars solstice southern Sun's supposed surface Taurus TELESCOPIC OBJECTS TELESCOPIC OBJECTS.-Alpha tides tion triangle TRIPLE STAR Ursa Ursa Major Venus vernal equinox visible Zeta Zodiac