Star · M2V
GJ 9404
GJ 9404 is a main-sequence star of spectral type M2V in the constellation Coma Berenices, 77.8 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Other names | Gl 459.3 · HIP 60093 |
|---|---|
| Constellation | Coma Berenices |
| Distance | 77.8 light-years (23.9 pc) |
| Apparent magnitude | magnitude 10.62 |
| Absolute magnitude | magnitude 8.73 |
| Spectral type | M2V |
| Surface temperature | 3,810 K |
| Luminosity | 0.1 L☉ |
| Radius | 0.626 R☉ |
| Mass | 0.62 M☉ |
| Right ascension (J2000) | 12h 19m 24.1s |
| Declination (J2000) | +28° 22′ 56″ |
| Space velocity (relative to the Sun) | 73.8 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 10.62. Visible from the whole Northern Hemisphere and south to latitude 62° S. North of latitude 62° N it never sets. It stands highest at midnight in March, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1948. 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 GJ 9404, the Sun would look like a star of magnitude 6.72, in the direction where our sky has the constellation Sculptor. It would be invisible to the naked eye.
Planets
- GJ 9404 b 13.5-day orbit · 3.48 R⊕
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- CWISE J121557.87+270154.2 3.50 light-years
- 2MASSI J1204303+321259 6.97 light-years
- GJ 3739 7.60 light-years
- GJ 3730 8.64 light-years
- GJ 3724 9.05 light-years
- GJ 3726C 9.35 light-years
- GJ 1163 9.52 light-years
- CWISE J123228.86+225714.5 10.1 light-years
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.