Naos
star · Puppis · 2.2ᵐ
Blue star in Puppis.
Notable facts
The light you see today left Naos around the year 942.
About 33 times brighter than the faintest star visible to the naked eye.
In brief
Which constellation is Naos in?
Naos lies in Puppis.
Is Naos visible to the naked eye?
2.2ᵐ — visible to the naked eye (under dark skies).
When is the best time to observe Naos?
Best observed in January.
Data
- RA / Dec (J2000)
- 8h 04m · −40° 00′
- Type
- star
- Constellation
- Puppis
- How to observe
- 2.2ᵐ — visible to the naked eye (under dark skies)
- Spectral class
- O5IAf — blue star
- Absolute magnitude
- -5.4ᵐ
- Luminosity
- ≈12,359 × the Sun
- Distance
- ~1,084 light years
- Designation
- HIP 39429
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° | 155° |
| +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 | 00:18 |
| February | 22:11 |
| March | 20:25 |
| April | 18:32 |
| May | 16:38 |
| June | 14:32 |
| July | 12:28 |
| August | 10:27 |
| September | 08:34 |
| October | 06:45 |
| November | 04:44 |
| December | 02:36 |
Upper culmination in local solar time — no time-zone or daylight-saving correction applied.