Hickson 28

 

Hickson 28, Eri. 2022-10-22, Cherry Springs, transp. 8/10, SQM 21.3. 20" F/4. Not visible in 13 mm. In 5.5 mm, A is slightly elongated and lies S of a faint field star [Vm 15.5]. A similar star is SW. Forming an equilateral triangle with the stars and lying S of A is an unresolved complex of B and D, visible as a round patch. C is smaller and lies near the center of the said triangle. A star of similar brightness lies N of the described field, followed by an E-W grouping of faint stars. A brighter star is W of the grouping.