Polis
star · Sagittarius · 3.8ᵐ
Blue-white star in Sagittarius.
Notable facts
The light you see today left Polis around the year -324174.
About 7 times brighter than the faintest star visible to the naked eye.
In brief
Which constellation is Polis in?
Polis lies in Sagittarius.
Is Polis visible to the naked eye?
3.8ᵐ — visible to the naked eye (under dark skies).
When is the best time to observe Polis?
Best observed in June.
Data
- RA / Dec (J2000)
- 18h 14m · −21° 04′
- Type
- star
- Constellation
- Sagittarius
- How to observe
- 3.8ᵐ — visible to the naked eye (under dark skies)
- Spectral class
- B2III: — blue-white star
- Absolute magnitude
- -16.2ᵐ
- Luminosity
- ≈248,885,732 × the Sun
- Distance
- ~326,200 light years
- Designation
- HIP 89341
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° | 9° | 136° |
| +55° | 14° | 129° |
| +45° | 24° | 121° |
| +30° | 39° | 115° |
| 0° | 69° | 111° |
| −35° | 76° | 116° |
Geometric altitude at upper culmination, atmospheric refraction not included. Positive latitudes are in the northern hemisphere.
Culmination time by month
| Month | Culmination |
|---|---|
| January | 10:28 |
| February | 08:21 |
| March | 06:36 |
| April | 04:42 |
| May | 02:48 |
| June | 00:42 |
| July | 22:38 |
| August | 20:37 |
| September | 18:44 |
| October | 16:55 |
| November | 14:54 |
| December | 12:46 |
Upper culmination in local solar time — no time-zone or daylight-saving correction applied.