Messier 41

Object:   M41 (NGC 2287) Date:               2019 February 10
Type:              Open cluster
Constellation:           Canis Major Time & altitude:          21.10 UT  18º
Catalogue data: Seeing (5 high):                               3/5
            R.A:                6h 46m Transparency (5 high):                   4/5
            Dec:                -20º 44 Telescope:     0.5m f4.1  Dob.
            Magnitude     4.5 Eyepiece       17mm Ethos              x120
            Size (mins)    38 Filters:            None


This cluster just fits in the 17mm’s 50 arcmin field with some space all around to frame it. This is a loose, sparse cluster. There are say 20 lead stars (to perhaps 10th magnitude) and around 50 or 60 fainter stars to about 13th magnitude, but nothing fainter, down to the limit of the telescope. I know there is a red star near the centre but I don’t see it, my eyes aren’t good at reds. Other than a tight half-circle arc of five stars open to the E, I don’t see any particular patterns in the arrangement of the stars, contrary to others’ written accounts. The cluster shows up well in the finder scope.