Where is M21 right now?
M21 is located in the constellation Sagittarius. It is currently below the horizon and is not visible from your location.

Where and When to Look for M21 Tonight
The highest sampled position of M21 is near 17:00: 24° above the horizon toward the south-west. Status: Twilight.

How M21 Moves Across the Sky
During this 24-hour period, M21 moves from the south-east, reaches its highest sampled position at 30° toward the south, and finishes toward the south-east.
Track M21 position throughout the night
← 23 October 2026 →
| Time | |
| Altitude | |
| Azimuth |
Shift the map to change the time and observe M21 changing position in the night sky.
Astrometric and Physical Parameters of M21
| Constellation | Sagittarius |
| Elevation | -4° |
| Direction | south-west (245°) |
| Magnitude | 5.9 |
M21 Passage Through Night
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Current position of M21
| Time | 20:14 |
| Latitude | 37.3541 |
| Longitude | -121.955 |
| Elevation | -4° |
| Azimuth | 245° |
Here you can see the current position of M21 on the map, as well as its positions for rise and set. This tool lets you track its movement throughout the night with accurate, up-to-date information.
M21 Position by Hour
Select a row to move both interactive maps to that time.
| Time | Elevation | Azimuth | Direction | Visibility | RA | Dec |
|---|---|---|---|---|---|---|
| Oct 22, 12:00 | 16° | 136° | south-east | Daylight | 18h 04m | −22° 29′ |
| Oct 22, 13:00 | 23° | 148° | south-east | Daylight | 18h 04m | −22° 29′ |
| Oct 22, 14:00 | 28° | 163° | south-east | Daylight | 18h 04m | −22° 29′ |
| Oct 22, 15:00 | 30° | 178° | south | Daylight | 18h 04m | −22° 29′ |
| Oct 22, 16:00 | 29° | 194° | south-west | Daylight | 18h 04m | −22° 29′ |
| Oct 22, 17:00 | 24° | 209° | south-west | Best view | 18h 04m | −22° 29′ |
| Oct 22, 18:00 | 17° | 222° | south-west | Visible | 18h 04m | −22° 29′ |
| Oct 22, 19:00 | 9° | 233° | south-west | Very low | 18h 04m | −22° 29′ |
| Oct 22, 20:00 | -1° | 242° | south-west | Below horizon | 18h 04m | −22° 29′ |
| Oct 22, 21:00 | -12° | 251° | south-west | Below horizon | 18h 04m | −22° 29′ |
| Oct 22, 22:00 | -24° | 259° | west | Below horizon | 18h 04m | −22° 29′ |
| Oct 22, 23:00 | -36° | 268° | west | Below horizon | 18h 04m | −22° 29′ |
| Oct 23, 00:00 | -48° | 277° | west | Below horizon | 18h 04m | −22° 29′ |
| Oct 23, 01:00 | -59° | 290° | north-west | Below horizon | 18h 04m | −22° 29′ |
| Oct 23, 02:00 | -70° | 312° | north-west | Below horizon | 18h 04m | −22° 29′ |
| Oct 23, 03:00 | -75° | 356° | north | Below horizon | 18h 04m | −22° 29′ |
| Oct 23, 03:56 — Astronomical night ends | -71° | 41° | north-east | Below horizon | 18h 04m | −22° 29′ |
| Oct 23, 04:00 | -71° | 43° | north-east | Below horizon | 18h 04m | −22° 29′ |
| Oct 23, 04:26 — Twilight end | -67° | 56° | north-east | Below horizon | 18h 04m | −22° 29′ |
| Oct 23, 04:57 — Civil sunrise | -62° | 67° | north-east | Below horizon | 18h 04m | −22° 29′ |
| Oct 23, 05:00 | -61° | 67° | north-east | Below horizon | 18h 04m | −22° 29′ |
| Oct 23, 05:24 — Sunrise | -56° | 74° | north-east | Below horizon | 18h 04m | −22° 29′ |
| Oct 23, 06:00 | -49° | 81° | east | Below horizon | 18h 04m | −22° 29′ |
| Oct 23, 07:00 | -38° | 91° | east | Below horizon | 18h 04m | −22° 29′ |
| Oct 23, 08:00 | -26° | 100° | east | Below horizon | 18h 04m | −22° 29′ |
| Oct 23, 09:00 | -14° | 108° | south-east | Below horizon | 18h 04m | −22° 29′ |
| Oct 23, 10:00 | -3° | 116° | south-east | Below horizon | 18h 04m | −22° 29′ |
| Oct 23, 11:00 | 7° | 126° | south-east | Daylight | 18h 04m | −22° 29′ |
| Oct 23, 12:00 | 16° | 136° | south-east | Daylight | 18h 04m | −22° 29′ |