The open cluster M 23
R/B-band color composite image from the Second Digitized Sky Survey (DSS2), measuring 16 arcminutes across.
Finder chart
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From Cambridge , M 23 is visible in the dawn sky, rising at 01:54 (EST) and reaching an altitude of 24° above the south-eastern horizon before fading from view as dawn breaks around 05:05.
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|
Name
M 23
|
Object Type
Open Cluster
|
Position
| Constellation: | Sagittarius |
| Magnitude: | 5.50 (V) [3] 6.03 (B) [2] |
| B-V Color (mag): | 0.53 |
| Right ascension: | 17h57m [2] |
| Declination: | -18°59' [2] |
| Distance: | 628.0 parsec 2047.3 lightyrs [1] |
Derived Quantities
| Absolute mag (V): | -3.49 |
Visibility from Cambridge
All times shown in Cambridge local time.