(FrameSize=60' * 60')
M23 = NGC6494 = Cr356 = Mel.184
(Open Cluster)
[Sagittarius]
May.17 1999, 24h23mJST (6min. Exposure)
Location: the Kasuo Pass, Awano town, Tochigi pref., Japan
Epsilon210c (21cm-reflector, f=628mm, F:3.0), Fuji-film SGA800
Object Data
M23 = NGC6494 = Cr356 = Mel.184
Type of object
Open Cluster
Type
e
Constellation
Sagittarius
R.A.
17h 56.9m (2000.0)
Dec.
-19° 01' (2000.0)
Mag.(v)
6.9
Mag.(p)
-
Diameter
25'
Distance
4500 light-year
note
Containing about 120 stars
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