M23 (Open cluster)
R/B-band color composite image from the Second Digitized Sky Survey (DSS2), measuring 16 arcminutes across.
Finder chart
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From Ashburn , M23 is visible in the dawn sky, rising at 02:01 (EDT) and reaching an altitude of 30° above the southern horizon before fading from view as dawn breaks around 06:02.
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|
Name
M23
|
Object type
Open cluster
|
Position
| Constellation: | Sagittarius |
| Magnitude: | 5.50 (V) [5] 6.03 (B) [3] |
| B-V Color (mag): | 0.53 |
| Right ascension: | 17h57m [3] |
| Declination: | -18°59' [3] |
| Distance: | 628.0 parsec 2047.3 lightyrs [2] |
Derived quantities
| Absolute mag (V): | -3.49 |
Sources
Visibility from Ashburn
All times shown in Ashburn local time.