https://github.com/davepinch/pinchy.cc/blob/master/content/topics/works/r/robert-burnham-jr/burnhams-celestial-handbook/burnhams-celestial-handbook.md
This was what I had hoped to make known by the Treatise I had written, and so clearly to exhibit the advantage that would thence accrue to the public, as to induce all who have the common good of man at heart, that is, all who are virtuous in truth, and not merely in appearance, or according to opinion, as well to communicate to me the experiments they had already made, as to assist me in those that remain to be made.
This is the famous NGC 884 “Double Star Cluster” in Perseus, one of the truly classic examples of a galactic cluster, and a wonderfully beautiful object for moderate telescopes. Among the all-time favorites for amateur observers, it may be seen without optical aid as a hazy patch of light about midway between the stars of Perseus and the familiar “WwW” figure of Cassiopeia. A small telescope reveals that this luminous spot consists of two fine open star clusters together in the field, the pair forming one of the most impressive and spectacular objects in the entire heavens. In the mythological outline of the constellation it marks the “Sword Handle” of Perseus and is often identified on star atlases by the inconsistent designation “h - x” Persei. The cluster called “h” is NGC 869, and “y” is NGC 884.