M38
open cluster · Auriga · 6.4ᵐ
An open cluster whose star chains suggest the Greek letter pi.
Notable facts
About 1/1 the apparent diameter of the Moon.
In brief
Which constellation is M38 in?
M38 lies in Auriga.
Is M38 visible to the naked eye?
6.4ᵐ — visible with binoculars.
When is the best time to observe M38?
Best observed in December.
Data
- RA / Dec (J2000)
- 5h 29m · +35° 50′
- Type
- open cluster
- Constellation
- Auriga
- How to observe
- 6.4ᵐ — visible with binoculars
- Angular size
- 21′
- Designation
- M38 · NGC 1912
Observing tip
Best in binoculars or a telescope at low power, so the whole cluster fits in the field of view.
Altitude above the horizon by latitude
| Latitude | Maximum altitude | Rise azimuth |
|---|---|---|
| +60° | 66° · never sets | — |
| +55° | 71° · never sets | — |
| +45° | 81° | 34° |
| +30° | 84° | 47° |
| 0° | 54° | 54° |
| −35° | 19° | 44° |
Geometric altitude at upper culmination, atmospheric refraction not included. Positive latitudes are in the northern hemisphere.
Culmination time by month
| Month | Culmination |
|---|---|
| January | 21:43 |
| February | 19:36 |
| March | 17:51 |
| April | 15:57 |
| May | 14:03 |
| June | 11:57 |
| July | 09:53 |
| August | 07:52 |
| September | 05:59 |
| October | 04:10 |
| November | 02:09 |
| December | 00:01 |
Upper culmination in local solar time — no time-zone or daylight-saving correction applied.