Unukalhai
star · Serpens · 2.6ᵐ
Orange star in Serpens.
Notable facts
The light you see today left Unukalhai around the year 1952.
About 22 times brighter than the faintest star visible to the naked eye.
In brief
Which constellation is Unukalhai in?
Unukalhai lies in Serpens.
Is Unukalhai visible to the naked eye?
2.6ᵐ — visible to the naked eye (under dark skies).
When is the best time to observe Unukalhai?
Best observed in May.
Data
- RA / Dec (J2000)
- 15h 44m · +6° 26′
- Type
- star
- Constellation
- Serpens
- How to observe
- 2.6ᵐ — visible to the naked eye (under dark skies)
- Spectral class
- K2III — orange star
- Absolute magnitude
- 0.8ᵐ
- Luminosity
- ≈39 × the Sun
- Distance
- ~74 light years
- Designation
- HIP 77070
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° | 36° | 77° |
| +55° | 41° | 79° |
| +45° | 51° | 81° |
| +30° | 66° | 83° |
| 0° | 84° | 84° |
| −35° | 49° | 82° |
Geometric altitude at upper culmination, atmospheric refraction not included. Positive latitudes are in the northern hemisphere.
Culmination time by month
| Month | Culmination |
|---|---|
| January | 07:59 |
| February | 05:52 |
| March | 04:06 |
| April | 02:13 |
| May | 00:18 |
| June | 22:12 |
| July | 20:08 |
| August | 18:07 |
| September | 16:14 |
| October | 14:26 |
| November | 12:25 |
| December | 10:16 |
Upper culmination in local solar time — no time-zone or daylight-saving correction applied.