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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 ...
These solid angles depend on arbitrary boundaries between the constellations: the list below is based on constellation boundaries drawn up by Eugène Delporte in 1930 on behalf of the IAU and published in Délimitation scientifique des constellations (Cambridge University Press). Before Delporte's work, there was no standard list of the ...
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
Coma Berenices has been recognized as an asterism since the Hellenistic period [3] (or much earlier, according to some authors), and is the only modern constellation named for an historic figure. [4] It was introduced to Western astronomy during the third century BC by Conon of Samos , the court astronomer of Egyptian ruler Ptolemy III ...
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 ...
Out of the 88 modern constellations, 36 lie predominantly in the northern sky, and the other 52 predominantly in the southern. Equirectangular plot of declination vs right ascension of stars brighter than apparent magnitude 5 on the Hipparcos Catalogue , coded by spectral type and apparent magnitude, relative to the modern constellations and ...
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
Gould designations for stars are similar to Flamsteed designations in the way that they number stars within a constellation in increasing order of right ascension.Each star is assigned an integer (starting at 1), followed by " G. " (or occasionally followed directly by a "G" without a space), and then the Latin genitive of the constellation it lies in.