The Geography of the Heavens and Class-book of Astronomy: Accompanied by a Celestial Atlas |
From inside the book
Results 1-5 of 58
Page 33
... Herschel makes its period 331 days , 10 hours , and 19 minutes ; while Hevelius assures us that it once disappeared for 4 years ; so that its true period , perhaps , has not been satisfactorily deter- mined . The whole number of stars ...
... Herschel makes its period 331 days , 10 hours , and 19 minutes ; while Hevelius assures us that it once disappeared for 4 years ; so that its true period , perhaps , has not been satisfactorily deter- mined . The whole number of stars ...
Page 34
... Herschel , in 1788 . 5. A PLANETARY NEBULA ; R. A. 2h . 19m . 25s .; Dec. S. 1 ° 51 ' 6 " ; in the middle of the Whale's neck . 6. A BRIGHT ROUND NEBULA ; R. A. 1h . 23m . 20s .; Dec. S. 7 ° 41 ' 8 " . Registered by Sir W. Herschel ...
... Herschel , in 1788 . 5. A PLANETARY NEBULA ; R. A. 2h . 19m . 25s .; Dec. S. 1 ° 51 ' 6 " ; in the middle of the Whale's neck . 6. A BRIGHT ROUND NEBULA ; R. A. 1h . 23m . 20s .; Dec. S. 7 ° 41 ' 8 " . Registered by Sir W. Herschel ...
Page 35
... Herschel , as 910 times as distant as stars of the first magnitude . PERSEUS , ET CAPUT MEDUSĘ . - MAP III . AND IV . 58. PERSEUS is represented with a sword in his right hand , the head of Medusa in his left , and wings at his feet ...
... Herschel , as 910 times as distant as stars of the first magnitude . PERSEUS , ET CAPUT MEDUSĘ . - MAP III . AND IV . 58. PERSEUS is represented with a sword in his right hand , the head of Medusa in his left , and wings at his feet ...
Page 37
... Herschel says , " the large stars are arranged in lines like interwoven letters . 10. An ELONGATED NEBULA ; R. A. 2h . 80m . 25s .; Deo . N. 38 ° 21 ′ 3 ′′ ; supposed to be a vast ring , seen obliquely . Map VIII . , Fig . 26 . 11. A ...
... Herschel says , " the large stars are arranged in lines like interwoven letters . 10. An ELONGATED NEBULA ; R. A. 2h . 80m . 25s .; Deo . N. 38 ° 21 ′ 3 ′′ ; supposed to be a vast ring , seen obliquely . Map VIII . , Fig . 26 . 11. A ...
Page 41
... Herschel to adopt his Nebula Theory , or theory of condensation of gas or nebulous matter , into suns and worlds . 6. A LARGE NEBULA ; R. A. 5h . 24m . 51s .; Dec. N. 21 ° 54 ′ 2 ′′ . It is about one degree north - west of in the tip of ...
... Herschel to adopt his Nebula Theory , or theory of condensation of gas or nebulous matter , into suns and worlds . 6. A LARGE NEBULA ; R. A. 5h . 24m . 51s .; Dec. N. 21 ° 54 ′ 2 ′′ . It is about one degree north - west of in the tip of ...
Other editions - View all
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