Star · A0V
φ Oct
φ Oct is a main-sequence star of spectral type A0V in the constellation Octans, 193.8 light-years from the Sun.
| Other names | HIP 90133 |
|---|---|
| Constellation | Octans |
| Distance | 193.8 light-years (59.4 pc) |
| Apparent magnitude | magnitude 5.47 |
| Absolute magnitude | magnitude 1.60 |
| Spectral type | A0V |
| Surface temperature | 9,620 K |
| Luminosity | 25.5 L☉ |
| Radius | 1.82 R☉ |
| Mass | 2.29 M☉ (estimated) |
| Right ascension (J2000) | 18h 23m 36.4s |
| Declination (J2000) | −75° 02′ 39″ |
| Space velocity (relative to the Sun) | 18.6 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 5.47). Visible from the whole Southern Hemisphere and north to latitude 15° N. South of latitude 15° S it never sets.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1832. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 3.4 million years.
The Sun seen from there
From a planet around φ Oct, the Sun would look like a star of magnitude 8.70, in the direction where our sky has the constellation Camelopardalis. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 87638 6.49 light-years
- HIP 88785 7.65 light-years
- HIP 93432 9.35 light-years
- HIP 92773 11.5 light-years
- HIP 88405 17.4 light-years
- HIP 82553 20.0 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.