Galaxy · Ursa Major

Nébuleuse de Coddington

The name is misleading.

In the catalogue, the thumbnail for this object is cropped in on its subject, so that it can be seen at card size. This view here is the whole photograph, as I produced it.

This is not a nebula but a galaxy, 10.7 million light-years away. It belongs to the M81 group, like Bode's Galaxy and the Cigar Galaxy. Edwin Foster Coddington spotted it in 1898, and the name nebula stuck to it. Its surface brightness is very low, 14.7 magnitudes per square arcminute. In other words, its light is very diluted. It is one of the objects in this catalogue where exposure time counts for most. A bright sky ruins everything here.

Source: Wikipédia en français, IC 2574. A figure wrong? Report it.

2h 13m 1 shot

0 towards 22h 12m · cumulative integration on this object

Temps d'intégration : the total exposure time, the sum of every exposure stacked on an object.