Star · G6 V
GJ 3021
GJ 3021 is a main-sequence star of spectral type G6 V in the constellation Hydrus, 57.3 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Other names | HIP 1292 |
|---|---|
| Constellation | Hydrus |
| Distance | 57.3 light-years (17.6 pc) |
| Apparent magnitude | magnitude 6.59 |
| Absolute magnitude | magnitude 5.37 |
| Spectral type | G6 V |
| Surface temperature | 5,540 K |
| Luminosity | 0.661 L☉ |
| Radius | 0.9 R☉ |
| Mass | 0.9 M☉ |
| Age | 0.4 billion years |
| Metallicity [Fe/H] | 0.10 |
| Right ascension (J2000) | 0h 16m 11.7s |
| Declination (J2000) | −79° 51′ 05″ |
| Space velocity (relative to the Sun) | 36.9 km/s |
In the sky
Too faint for the naked eye (magnitude 6.59); binoculars will find it. Visible from the whole Southern Hemisphere and north to latitude 10° N. South of latitude 10° S it never sets.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1969. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.0 million years.
The Sun seen from there
From a planet around GJ 3021, the Sun would look like a star of magnitude 6.05, in the direction where our sky has the constellation Camelopardalis. It would be visible to the naked eye.
Planets
- GJ 3021 b 134-day orbit · 13.1 R⊕
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- WISEPA J234351.20-741847.0 6.76 light-years
- Gl 820.1 8.33 light-years
- Gl 808 8.98 light-years
- ν Oct 10.2 light-years
- WISEA J233816.47-732929.7 10.5 light-years
- WISE J230228.68-713441.6 11.2 light-years
- GJ 1264 11.6 light-years
- GJ 4230B 12.2 light-years
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.