M21 (Open cluster)
R/B-band color composite image from the Second Digitized Sky Survey (DSS2), measuring 10 arcminutes across.
Finder chart
Click and drag the chart above to pan around the sky, or use the mouse wheel to zoom.
Click to enlarge.
From South El Monte , M21 is visible in the morning sky, becoming accessible around 23:39, when it reaches an altitude of 21° above your south-eastern horizon. It will then reach its highest point in the sky at 02:19, 33° above your southern horizon. It will be lost to dawn twilight around 04:29, 25° above your south-western horizon.
Begin typing the name of a town near to you, and then select the town from the list of options
which appear below.
|
Name
M21
|
Object type
Open cluster
|
Position
| Right ascension: | 18h04m [3] |
| Declination: | −22°29' [3] |
| Constellation: | Sagittarius |
| Magnitude: | 5.90 (V) [5] |
| Distance: | 1.2 kpc 3.9 klyr [2] |
Derived quantities
| Absolute mag (V): | -4.50 |
Sources
Visibility from South El Monte
All times shown in South El Monte local time.