|Home Calendar About OCA E Zine Resources Image Gallery Members|
|www.ocastronomers.org/ gallery/ htm-mess /|
B/W image of M22
Tri-color image of 6th-mag. globular cluster M22 (NGC 6656) in Sagittarius.
One of several experimental tri-color images taken on September 3/4, 1994. A set of dichroic filters (RGB) was used to take three successive images. The images were then registered and added together using Epoch 2000. Exposure length and exact time of image are unknown.