Star · M3.5 V
2MASS J01225093-2439505
2MASS J01225093-2439505 is a main-sequence star of spectral type M3.5 V in the constellation Cetus, 110.0 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Constellation | Cetus |
|---|---|
| Distance | 110.0 light-years (33.7 pc) |
| Apparent magnitude | magnitude 14.20 |
| Absolute magnitude | magnitude 11.56 |
| Spectral type | M3.5 V |
| Surface temperature | 3,530 K |
| Luminosity | 0.0191 L☉ |
| Radius | 0.366 R☉ |
| Mass | 0.4 M☉ |
| Age | 0.1 billion years |
| Right ascension (J2000) | 1h 22m 51.1s |
| Declination (J2000) | −24° 39′ 53″ |
| Space velocity (relative to the Sun) | 30.2 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 14.20. Visible from the whole Southern Hemisphere and north to latitude 65° N. South of latitude 65° S it never sets. It stands highest at midnight in October, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1916. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 2.0 million years.
The Sun seen from there
From a planet around 2MASS J01225093-2439505, the Sun would look like a star of magnitude 7.47, in the direction where our sky has the constellation Coma Berenices. It would be invisible to the naked eye.
Planets
- 2MASS J01225093-2439505 b 11.2 R⊕
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 7228 7.14 light-years
- HIP 5373 8.91 light-years
- HIP 8008 8.97 light-years
- GJ 3111 9.84 light-years
- HD 8326 10.7 light-years
- WISEA J010631.20-231415.1 10.8 light-years
- Gl 62 11.1 light-years
- HIP 4855 11.5 light-years
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.