Star · K2.5 V
HD 207496
HD 207496 is a subgiant star of spectral type K2.5 V in the constellation Octans, 77.1 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Other names | GJ 4229A · HIP 108162 |
|---|---|
| Constellation | Octans |
| Distance | 77.1 light-years (23.6 pc) |
| Apparent magnitude | magnitude 8.23 |
| Absolute magnitude | magnitude 6.36 |
| Spectral type | K2.5 V |
| Surface temperature | 4,820 K |
| Luminosity | 0.31 L☉ |
| Radius | 0.769 R☉ |
| Mass | 0.8 M☉ |
| Age | 0.5 billion years |
| Metallicity [Fe/H] | 0.10 |
| Right ascension (J2000) | 21h 54m 51.4s |
| Declination (J2000) | −77° 20′ 17″ |
| Space velocity (relative to the Sun) | 34.7 km/s |
In the sky
Too faint for the naked eye (magnitude 8.23); binoculars will find it. Visible from the whole Southern Hemisphere and north to latitude 13° N. South of latitude 13° S it never sets.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1949. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.4 million years.
The Sun seen from there
From a planet around HD 207496, the Sun would look like a star of magnitude 6.70, in the direction where our sky has the constellation Draco. It would be invisible to the naked eye.
Planets
- HD 207496 b 6.44-day orbit · 2.25 R⊕
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- SIPS J2150-7520B 3.34 light-years
- HIP 110719 4.04 light-years
- HIP 110712 4.05 light-years
- HIP 107022 6.37 light-years
- HD 199509 7.33 light-years
- GJ 4317 8.60 light-years
- Gl 818.1B 10.1 light-years
- Gl 818.1A 10.1 light-years
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.