M29 is a moderately small open cluster, situated in the highly crowded area of Milky Way near Gamma Cygni. Its distance is somewhere between 4,000 and 7,000 light-years and is difficult to determine due to the uncertainty of absorption of the intervening dust. Its age is estimated at 10 million years, as its five hottest stars are all giants of spectral class B0. The brightest of these is about 8.59 visual magnitudes and may be an impressive -8.2 mag in absolute, or a luminosity of 160,000 suns. The linear diameter was estimated at only 11 light years. It contains somewhere between 20 and 50 members which are somewhat difficult to identify due to the background of the Milky Way.