Acamar
star · Eridanus · 2.9ᵐ
White star in Eridanus.
Notable facts
The light you see today left Acamar around the year 1865.
About 18 times brighter than the faintest star visible to the naked eye.
In brief
Which constellation is Acamar in?
Acamar lies in Eridanus.
Is Acamar visible to the naked eye?
2.9ᵐ — visible to the naked eye (under dark skies).
When is the best time to observe Acamar?
Best observed in November.
Data
- RA / Dec (J2000)
- 2h 58m · −40° 18′
- Type
- star
- Constellation
- Eridanus
- How to observe
- 2.9ᵐ — visible to the naked eye (under dark skies)
- Spectral class
- A4III+... — white star
- Absolute magnitude
- -0.6ᵐ
- Luminosity
- ≈147 × the Sun
- Distance
- ~161 light years
- Designation
- HIP 13847
Observing tip
Stars stay points at any magnification: aim your telescope for colour, brightness and companions, not detail.
Altitude above the horizon by latitude
| Latitude | Maximum altitude | Rise azimuth |
|---|---|---|
| +60° | never rises | — |
| +55° | never rises | — |
| +45° | 5° | 156° |
| +30° | 20° | 138° |
| 0° | 50° | 130° |
| −35° | 85° | 142° |
Geometric altitude at upper culmination, atmospheric refraction not included. Positive latitudes are in the northern hemisphere.
Culmination time by month
| Month | Culmination |
|---|---|
| January | 19:13 |
| February | 17:06 |
| March | 15:20 |
| April | 13:27 |
| May | 11:32 |
| June | 09:26 |
| July | 07:22 |
| August | 05:21 |
| September | 03:28 |
| October | 01:40 |
| November | 23:39 |
| December | 21:30 |
Upper culmination in local solar time — no time-zone or daylight-saving correction applied.