Cancer

Observing Projects for Cancer

IC 4665

: By Glenn Chaple
One reason for IC 4665’s relative anonymity is its large size, allowing it to elude the narrow fields of large-aperture telescopes. Charles Messier and William Herschel missed it, and it wasn’t included in the New General Catalogue. This often-overlooked cluster is definitely a must-see object for binoculars and rich-field telescopes.

A Selection of Double Stars in Cancer

: By Glenn Chaple
For our spring double star selection, we’ll say goodbye to Gemini and shift eastward to the faint constellation Cancer. Notable for its bright Messier cluster M44 (the Praesepe), Cancer is also home to a splendid array of double and multiple stars. How many can you notch? (Data from the Washington Double Star Catalog (WDS)