- Globular Clusters (And) -

And (1) Cap (2) Her (3) Lyr (1) Ser (5)
Aql (3) Cep (1) Hya (1) Oph (18) Sex (1)
Aqr (2) Com (3) Lep (1) Peg (2) Sge (2)
Aur (1) CVn (1) Lib (1) Sco (3) Sgr (15)
Boo (1) Del (2) Lyn (1) Sct (1) Vir (1)

Mayall II (GC)

../images/dss/dss2blue_003246.53_+393440.50_5_web.jpg
Image source: DSS II (blue) - 5'×5'
Name: Mayall II, G1
Group: M31
Type: GC
Constellation: And
Coordinates: 00h32m46.53s / +39°34'40.50"
Brightness / Size: 13m.8 / 0.5'×0.5'
Robert Zebahl
152mm f/8, 171x, Bortle 4+, SQM-L 21.3
At 133x up to 240x well visible with averted vision as a compact, diffuse, condensed brightening. The two faint foreground stars close to the cluster were not visible. Best view at 171x. In a nearby 10-inch Dobsonian the two foreground stars were beginning to be visible.

 		MODERATE
8" f/6, 216x, Bortle 4, NELM 5m.9+, SQM-L 21.0
Very small, round, condensed brightening. The two nearby faint stars only separated in some moments. Overall not too challenging. Good seeing helps a lot. 		DIFFICULT