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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.
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 ...
The International Astronomical Union (IAU) designates 88 constellations. [1] In the table below, they are listed by geographical visibility according to latitude as seen from Earth, as well as the best months for viewing the constellations at 21:00 (9 p.m.).
Chinese constellations – traditional Chinese astronomy constellations; List of Nakshatras – sectors along the Moon's ecliptic; IAU designated constellations by area – a list of constellations ranked by area; IAU designated constellations by geographical visibility – a list of constellations listed by the latitudes from which they can be ...
IAU designated constellations by area; IAU designated constellations by geographical visibility This page was last edited on 1 April 2020, at 02:19 (UTC). Text is ...
Covering 179 square degrees and hence 0.433% of the sky, Corona Borealis ranks 73rd of the IAU designated constellations by area. [5] Its position in the Northern Celestial Hemisphere means that the whole constellation is visible to observers north of 50°S.
Lists of constellations. Lists of stars by constellation; List of constellations by area; List of IAU designated constellations; Star clusters. List of open clusters;
Constellations are groupings of stars as they are viewed, along a line-of-sight at a constant azimuth and elevation in the sky. This category identifies the 88 constellations currently recognised (areas of the sky) by the International Astronomical Union (IAU), plus some further subcategories. For individual stars, see also the category Stars