Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Books Books
" ... equator and the ecliptic, and hence, also, the position of the equinoxes. In expressing the positions of stars, referred to the vernal equinox, at any given instant, the actual position of the equinox at the instant is understood, unless otherwise... "
An Elementary Treatise on Plane & Spherical Trigonometry: With Their ... - Page 199
by Benjamin Peirce - 1845 - 449 pages
Full view - About this book

The Elements of the Theory of Astronomy

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...
Full view - About this book

An Elementary Treatise on Plane & Spherical Trigonometry: With Their ...

Benjamin Peirce - Plane trigonometry - 1845 - 498 pages
...Horizon. circles of declination, which the first meridian does to other terrestrial meridians. . 8. 'f The declination of a star is its angular distance...either estimated in degrees, minutes, &c. from 0° to 300° ; or in hours, minutes, &c. of time, 15 degrees being allowed for each hour, as in Sph. Trig....
Full view - About this book

A Manual of Spherical and Practical Astronomy: Spherical astronomy

William Chauvenet - Astronomical instruments - 1863 - 764 pages
...at the instant is understood, unless otherwise stated. The right ascension of a point of the sphere is the arc of the equator intercepted between its circle of declination and the vernal equinox, and is reckoned from the venial equinox eastward from 0° to 360°, or, in time, from 0* to 24*. The...
Full view - About this book

A Manual of Spherical and Astronomy: Embracing the ..., Part 32, Volume 1

William Chauvenet - Astronomical instruments - 1864 - 720 pages
...at the instant is understood, unless otherwise stated. The right ascension of a point of the sphere is the arc of the equator intercepted between its circle of declination and the vernal equinox, arid is reckoned from the vernal equinox eastward from 0° to 360°, or, in time, from 0* to 24\ The...
Full view - About this book

A Manual of Spherical and Pratical Astronomy: Embracing the ..., Volume 1

William Chauvenet - 1864
...at the instant is understood, unless otherwise stated. The right ascension of a point of the sphere is the arc of the equator intercepted between its circle of declination and the vernal equinox, and is reckoned from the vernal equinox eastward from 0° to 360°, or, in time, from 0* to 24*. The...
Full view - About this book

A Dictionary of Science, Literature, & Art: Comprising the ..., Volume 1

William Thomas Brande - Encyclopedias and dictionaries - 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...
Full view - About this book

A Treatise on Practical Astronomy: As Applied to Geodesy and Navigation

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...
Full view - About this book

Johnson's Universal Cyclopaedia: A Scientific and Popular Treasury ..., Volume 1

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...
Full view - About this book

Advanced Physiography

John Thornton (M.A.) - Astronomy - 1890 - 374 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...
Full view - About this book

Elementary Physiography: An Introduction to the Study of Nature

John Thornton - Physical geography - 1899 - 458 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...
Full view - About this book




  1. My library
  2. Help
  3. Advanced Book Search
  4. Download EPUB
  5. Download PDF