 Right ascension is either estimated in degrees, minutes, &c. from 0° to 1560° ; or in hours, minutes, &c. of time, 15 degrees being allowed for each hour, as in Sph. Trig. § 3. The positions of the stars are completely determined upon...  The Elements of Astronomy - Page 59by Devendra Náth Mallik - 1921 - 233 pagesFull view - About this book
 | John Hymers - Astronomy - 1840 - 386 pages
...90°. The Polar Distance is the angular distance from the pole, or the complement of the declination. The Right Ascension of a star is the arc of the equator, intercepted between a certain fixed point in the equator, called the first point of Aries,' and the declination circle... | |
 | Benjamin Peirce - Plane trigonometry - 1845 - 498 pages
...angular distance from the celestial equator," measured upon its circle of declination. [B. p. 49.] 9. The right ascension of a star is the arc of the equator intercepted between its circle of declination and the vernal equinox. [B. p. 49.] Right ascension is either estimated in... | |
 | Benjamin Peirce - Plane trigonometry - 1845 - 498 pages
...angular distance from the celestial equator," measured upon its circle of declination. [B. p. 49.] 9. The right ascension of a star is the arc of the equator intercepted between its circle of declination and the vernal equinox. [B. p. 49.] Right ascension is either estimated in... | |
 | Benjamin Peirce - Plane trigonometry - 1861 - 394 pages
...distance from the celestial equator," measured upon its circle of declination. [В., р. 49.] 9. The riglu ascension of a star is the arc of the equator intercepted between its circle of declination and the vernal equinox. [В., р. 49.] Right ascension is either estimated... | |
 | George William Cox - Art - 1867 - 1002 pages
...the dock at which any star passes the meridian is the right ascension of the star in time. The OBUQVB ASCENSION of a star is the arc of the equator intercepted between the vernal equinox and that point of the equator which comes to the horizon at the same time with the star.... | |
 | Charles Leander Doolittle - Interpolation - 1885 - 690 pages
...are the poles of the solstitial colure, and the solstices are the poles of the equinoctial colure. THE RIGHT ASCENSION of a star is the arc of the equator intercepted between the vernal equinox and the foot of the hourcircle passing through the star. It is reckoned from the vernal... | |
 | Encyclopedias and dictionaries - 1888 - 952 pages
...was located. Pop. of isiand, 200. Ascension [from the Lat. a«ctn'«io, an "ascent"]. In astronomy, the right ascension of a star is the arc of the equator intercepted between the first point of Aries and that point of the equator which comes to the meridian at the same instant... | |
 | John Thornton (M.A.) - Astronomy - 1890 - 372 pages
...the hour circle between the star and the pole. Declination + polar distance = 90°. (See fig. 12. ) The right ascension of a star is the arc of the equator intercepted between a certain point of the equator called 'the first point of Aries' and the star's hour circle ; or, by... | |
 | John Thornton - Physical geography - 1899 - 460 pages
...great circle passing from the pole through the star. Declination + polar distance = 90°. The light ascension of a star is the arc of the equator intercepted between the point where a perpendicular from the star meets the equator and the point called the first point of... | |
 | 1882 - 248 pages
...qo-ordinates in this case are JS, the declination and 7j, the Right Ascension (written, RA). 39. Def. The right ascension of a star is the arc of the equator...seconds (15° of this arc being equivalent to one hour) [art 37], and measured in the opposite direction to that or the apparent diurnal motion of celestial... | |
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