The Geography of the Heavens and Class-book of Astronomy: Accompanied by a Celestial Atlas |
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Page 7
... Lengths of the Days and Nights , 287 66 XV . The Harvest Moon , and Horizontal Moon , 293 " XVI . Refraction and Twilight , · 297 " XVII . Aurora Borealis and Parallax , · 802 " XVIII . Practical Astronomy - Reflection and Refraction of ...
... Lengths of the Days and Nights , 287 66 XV . The Harvest Moon , and Horizontal Moon , 293 " XVI . Refraction and Twilight , · 297 " XVII . Aurora Borealis and Parallax , · 802 " XVIII . Practical Astronomy - Reflection and Refraction of ...
Page 20
... length , and 4 ° in breadth . It was known as far back as A.D. 905 , is of an oval shape , and is described by Smyth as " an overpowering nebula , with a companion about 25 ' in the south vertical . " Sir William Herschell considered ...
... length , and 4 ° in breadth . It was known as far back as A.D. 905 , is of an oval shape , and is described by Smyth as " an overpowering nebula , with a companion about 25 ' in the south vertical . " Sir William Herschell considered ...
Page 21
... length is about 16 ° , and breadth , 7 ° . Its mean right ascension is 15 ° , and its declination 25 ° N. Consequently , it is on the meridian the 24th of November ; and from its breadth , is more than a week in passing over it . 38 ...
... length is about 16 ° , and breadth , 7 ° . Its mean right ascension is 15 ° , and its declination 25 ° N. Consequently , it is on the meridian the 24th of November ; and from its breadth , is more than a week in passing over it . 38 ...
Page 31
... length of time , carried the equinoctial nearly 60 ° to the west , where we now find it . See thi . subject explained in the second part of the book . 2. B ARIETIS ( Sheratan ) —A BRIGHT STAR with a distant companion in the coil of the ...
... length of time , carried the equinoctial nearly 60 ° to the west , where we now find it . See thi . subject explained in the second part of the book . 2. B ARIETIS ( Sheratan ) —A BRIGHT STAR with a distant companion in the coil of the ...
Page 32
... length , E. and W. , with a mean breadth of 20 ° from N. to S. It is situated below Aries and the Triangles , with a mean declination of 12 ° S. It is represented as making its way to the E. , with its body below , and its head elevated ...
... length , E. and W. , with a mean breadth of 20 ° from N. to S. It is situated below Aries and the Triangles , with a mean declination of 12 ° S. It is represented as making its way to the E. , with its body below , and its head elevated ...
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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