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2. IAU designated constellations by area - Wikipedia

   en.wikipedia.org/wiki/IAU_designated...

   Hydra is the largest constellation, covering more than 1 ⁄ 32 of the night sky and 19 times the area of Crux, the smallest constellation. The International Astronomical Union (IAU) designates 88 constellations of stars.

3. Zodiac - Wikipedia

   en.wikipedia.org/wiki/Zodiac

   This is an accepted version of this page This is the latest accepted revision, reviewed on 4 December 2024. Area of the sky divided into twelve signs For the East Asian zodiac, see Chinese zodiac. For other uses, see Zodiac (disambiguation). The Earth's orbit around the Sun causes the apparent motion of the latter along the ecliptic (red). Earth is axially tilted 23.4° relative to this plane ...

4. Aries (constellation) - Wikipedia

   en.wikipedia.org/wiki/Aries_(constellation)

   It is one of the 48 constellations described by the 2nd century astronomer Ptolemy, and remains one of the 88 modern constellations. It is a mid-sized constellation ranking 39th in overall size, with an area of 441 square degrees (1.1% of the celestial sphere). Aries has represented a ram since late Babylonian times.

5. IAU designated constellations - Wikipedia

   en.wikipedia.org/wiki/IAU_designated_constellations

   IAU designated constellations in equirectangular projection (epoch B1875.0) In contemporary astronomy, 88 constellations are recognized by the International Astronomical Union (IAU). [1] Each constellation is a region of the sky bordered by arcs of right ascension and declination, together covering the entire celestial sphere. Their boundaries ...

6. Lists of stars by constellation - Wikipedia

   en.wikipedia.org/.../Lists_of_stars_by_constellation

   All stars but one can be associated with an IAU (International Astronomical Union) constellation. IAU constellations are areas of the sky. Although there are only 88 IAU constellations, the sky is actually divided into 89 irregularly shaped boxes as the constellation Serpens is split into two separate sections, Serpens Caput (the snake's head) to the west and Serpens Cauda (the snake's tail ...

7. Constellation - Wikipedia

   en.wikipedia.org/wiki/Constellation

   A constellation is an area on the celestial sphere in which a ... Many changed in size or shape. ... The traditional 48 constellations, consisting of the zodiac and ...