M28
globular cluster · Sagittarius · 6.9ᵐ
A Messier catalogue object — globular cluster in Sagittarius.
Notable facts
About 1/3 the apparent diameter of the Moon.
In brief
Which constellation is M28 in?
M28 lies in Sagittarius.
Is M28 visible to the naked eye?
6.9ᵐ — visible with binoculars.
When is the best time to observe M28?
Best observed in June.
Data
- RA / Dec (J2000)
- 18h 24m · −24° 52′
- Type
- globular cluster
- Constellation
- Sagittarius
- How to observe
- 6.9ᵐ — visible with binoculars
- Angular size
- 11′
- Designation
- M28 · NGC 6626
Observing tip
In binoculars it is a fuzzy ball; a 100–150 mm telescope starts to resolve individual stars around the edges.
Altitude above the horizon by latitude
| Latitude | Maximum altitude | Rise azimuth |
|---|---|---|
| +60° | 5° | 147° |
| +55° | 10° | 137° |
| +45° | 20° | 126° |
| +30° | 35° | 119° |
| 0° | 65° | 115° |
| −35° | 80° | 121° |
Geometric altitude at upper culmination, atmospheric refraction not included. Positive latitudes are in the northern hemisphere.
Culmination time by month
| Month | Culmination |
|---|---|
| January | 10:39 |
| February | 08:32 |
| March | 06:46 |
| April | 04:53 |
| May | 02:59 |
| June | 00:53 |
| July | 22:49 |
| August | 20:48 |
| September | 18:55 |
| October | 17:06 |
| November | 15:05 |
| December | 12:57 |
Upper culmination in local solar time — no time-zone or daylight-saving correction applied.