Arkab Posterior
star · Sagittarius · 4.3ᵐ
Yellow-white star in Sagittarius.
Notable facts
The light you see today left Arkab Posterior around the year 1892.
About 5 times brighter than the faintest star visible to the naked eye.
In brief
Which constellation is Arkab Posterior in?
Arkab Posterior lies in Sagittarius.
Is Arkab Posterior visible to the naked eye?
4.3ᵐ — visible to the naked eye (under dark skies).
When is the best time to observe Arkab Posterior?
Best observed in July.
Data
- RA / Dec (J2000)
- 19h 23m · −44° 48′
- Type
- star
- Constellation
- Sagittarius
- How to observe
- 4.3ᵐ — visible to the naked eye (under dark skies)
- Spectral class
- F2III — yellow-white star
- Absolute magnitude
- 1.2ᵐ
- Luminosity
- ≈28 × the Sun
- Distance
- ~134 light years
- Designation
- HIP 95294
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° | 0° | 175° |
| +30° | 15° | 144° |
| 0° | 45° | 135° |
| −35° | 80° | 149° |
Geometric altitude at upper culmination, atmospheric refraction not included. Positive latitudes are in the northern hemisphere.
Culmination time by month
| Month | Culmination |
|---|---|
| January | 11:38 |
| February | 09:30 |
| March | 07:45 |
| April | 05:52 |
| May | 03:57 |
| June | 01:51 |
| July | 23:47 |
| August | 21:46 |
| September | 19:53 |
| October | 18:05 |
| November | 16:04 |
| December | 13:55 |
Upper culmination in local solar time — no time-zone or daylight-saving correction applied.