Public index · Astronomy
Coma Berenices · 42
42nd · 42 Com
Recorded
IAU constellation ranked 42nd by area. Alpha Comae Berenices is also Flamsteed 42 Com. Diadem.
Two independent 42s in one hair. The constellation is 42nd of 88 by standardized area, 386 square degrees. Its Alpha star is 42 Comae Berenices. A 2015 eclipse prediction failed because three of 609 position angles were 180° wrong.
What it supports
Sky-area rank and Flamsteed number. Correspondence, not mechanism. The missed eclipse is a correction story attached to the same star.
What it does not
Not one encoding. Not Berenice’s hair as a 42-law.
ExactnessExact
Form42
Unitcatalogue
Strengthhard