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The familiar seven stars of the "Big Dipper", recorded by Ptolemy, are visible in the rump and tail, but notice they occur as a mirror-image of what we actually see because Al Sufi provided two images of each constellation, one as we see it in the night sky and one as seen here on a celestial globe.
The Constellations 1 – Ian Ridpath's list of constellations. Ian Ridpath's Star Tales: Constellation Mythology and History – Ian Ridpath's Star Tales. VizieR – CDS's archive of constellation boundaries. The text file constbnd.dat gives the 1875.0 coordinates of the vertices of the constellation regions, together with the constellations ...
The night sky is the nighttime appearance of celestial objects like stars, planets, and the Moon, which are visible in a clear sky between sunset and sunrise, when the Sun is below the horizon. Natural light sources in a night sky include moonlight , starlight , and airglow , depending on location and timing.
This book was an update of parts VII.5 and VIII.1 of the 2nd century Almagest star catalogue by Ptolemy. The work of al-Sufi contained illustrations of the constellations and portrayed the brighter stars as dots. The original book did not survive, but a copy from about 1009 is preserved at the Oxford University. [14] [15]
The following lists of constellations are available: IAU designated constellations – a list of the current, or "modern", constellations; Former constellations – a list of former constellations; Chinese constellations – traditional Chinese astronomy constellations; List of Nakshatras – sectors along the Moon's ecliptic
Annotated night sky image showing Auriga and the Pleiades—Capella is the brightest star, towards top left With an average apparent magnitude of +0.08, Capella is the brightest object in the constellation Auriga , the sixth-brightest star in the night sky, the third-brightest in the northern celestial hemisphere (after Arcturus and Vega ), and ...
As of 2008 The Stars: A New Way to See Them and a simplified presentation for children called Find the Constellations are still in print. A new edition of Find the Constellations was released in 2008, updated with modern fonts, the new status of Pluto, and some more current measurements of planetary sizes and orbital radii. [2]
The official constellation boundaries, as set by Eugène Delporte in 1930, are defined by a polygon of 12 segments (illustrated in infobox). In the equatorial coordinate system , the right ascension coordinates of these borders lie between 14 h 22 m 08.08 s and 16 h 02 m 17.23 s , while the declination coordinates are between −0.47° and − ...