Star · M1V
TOI-2120
TOI-2120 is a main-sequence star of spectral type M1V in the constellation Cassiopeia, 105.0 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Constellation | Cassiopeia |
|---|---|
| Distance | 105.0 light-years (32.2 pc) |
| Apparent magnitude | magnitude 15.70 |
| Absolute magnitude | magnitude 13.16 |
| Spectral type | M1V |
| Surface temperature | 3,130 K |
| Luminosity | 0.00517 L☉ |
| Radius | 0.245 R☉ |
| Mass | 0.211 M☉ |
| Metallicity [Fe/H] | 0.39 |
| Right ascension (J2000) | 1h 34m 01.8s |
| Declination (J2000) | +65° 30′ 50″ |
| Space velocity (relative to the Sun) | 57.1 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 15.70. Visible from the whole Northern Hemisphere and south to latitude 24° S. North of latitude 24° N 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 1921. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.9 million years.
The Sun seen from there
From a planet around TOI-2120, the Sun would look like a star of magnitude 7.37, in the direction where our sky has the constellation Musca. It would be invisible to the naked eye.
Planets
- TOI-2120 b 5.8-day orbit · 2.12 R⊕
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.