Messier 6

6 final

Object:   M6  (NGC 6405) Date:               2018 July 16
Type:  Open cluster
Constellation:           Scorpius Time & altitude:         23.20 UT      5º
Catalogue data: Seeing (5 high):                               2/5
            R.A:                17h 40m Transparency (5 high):                   4/5
            Dec:                -32º 13 Telescope:     0.5m f4.1  Dob.
            Magnitude     4.2 Eyepiece       17mm Ethos              x120
            Size (mins)    30 Filters:            None


At minus 32° declination and 5° altitude I can do little more than say I’ve seen the object. Checking my sketch with Megastar, the faintest star I have recorded is no better than 11.1m and the perceived diameter of the cluster is about 15 arc minutes.