M47
open cluster · Puppis · 4.4ᵐ
A Messier catalogue object — open cluster in Puppis.
Notable facts
About 1 the apparent diameter of the Moon.
In brief
Which constellation is M47 in?
M47 lies in Puppis.
Is M47 visible to the naked eye?
4.4ᵐ — visible to the naked eye (under dark skies).
When is the best time to observe M47?
Best observed in January.
Data
- RA / Dec (J2000)
- 7h 37m · −14° 30′
- Type
- open cluster
- Constellation
- Puppis
- How to observe
- 4.4ᵐ — visible to the naked eye (under dark skies)
- Angular size
- 30′
- Designation
- M47 · NGC 2422
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° | 16° | 120° |
| +55° | 21° | 116° |
| +45° | 31° | 111° |
| +30° | 46° | 107° |
| 0° | 76° | 105° |
| −35° | 70° | 108° |
Geometric altitude at upper culmination, atmospheric refraction not included. Positive latitudes are in the northern hemisphere.
Culmination time by month
| Month | Culmination |
|---|---|
| January | 23:51 |
| February | 21:44 |
| March | 19:58 |
| April | 18:05 |
| May | 16:11 |
| June | 14:05 |
| July | 12:01 |
| August | 10:00 |
| September | 08:07 |
| October | 06:18 |
| November | 04:17 |
| December | 02:09 |
Upper culmination in local solar time — no time-zone or daylight-saving correction applied.