Stephan's Quintet Pegasus 20" F4.5 176X |
Stephan's Quintet is a fairly dim cluster of 5 galaxies in the constellation Pegasus
that is within the reach of moderate aperature scopes. From top to bottom
here are the magnitudes and sizes: ngc 7319, mag 13, 1.5': ngc
7320, mag 12.5, 2.2'x1.2': ngc 7318 a/b, mag 13, 1': ngc 7317, mag
13.5, 1'. The cluster is thought to be some 270 million ly distant, however
ngc 7320, the largest and brightest member has less of a redshift so it is
thought to be a foreground object. The sketch was done in the 20" reflector
under mag 7.9 skies, north kaibab national forest, az. |