Naos (ζ Puppis) is the brightest star in the constellation Puppis. It is about 1100 light-years (ly) away and has an apparent magnitude of 2.21 mag.
Due to the division of the former constellation Argo Navis into the constellations Puppis, Carina and Vela, these have a common “set” of Bayer designations and Naos therefore does not have alpha, but zeta as a Greek letter.
The brightest star Alpha of Argo Navis is Canopus in the constellation Carina.
| Naos | |
|---|---|
| Constellation | Puppis |
| Right ascension | 08h 03m 35.05s |
| Declination | -40° 00′ 11.3″ |
| Apparent magnitude | 2.21 mag |
| Distance | (1090 ± 40) ly |
| Bayer designation | ζ Puppis |
| Bright Star Catalogue | HR 3165 |
| Hipparcos Catalogue | HIP 39429 |
| SAO Catalogue | SAO 198752 |
