Star · M2I
TOI-4377
TOI-4377 is a supergiant star of spectral type M2I in the constellation Chamaeleon, 1,497 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Constellation | Chamaeleon |
|---|---|
| Distance | 1,497 light-years (458.9 pc) |
| Apparent magnitude | magnitude 11.89 |
| Absolute magnitude | magnitude 3.58 |
| Spectral type | M2I |
| Surface temperature | 4,970 K |
| Luminosity | 6.64 L☉ |
| Radius | 3.52 R☉ |
| Mass | 1.36 M☉ |
| Age | 3.9 billion years |
| Metallicity [Fe/H] | 0.21 |
| Right ascension (J2000) | 10h 59m 43.9s |
| Declination (J2000) | −82° 13′ 17″ |
| Space velocity (relative to the Sun) | 46.8 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 11.89. Visible from the whole Southern Hemisphere and north to latitude 8° N. South of latitude 8° S it never sets.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 529. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 27 million years.
The Sun seen from there
From a planet around TOI-4377, the Sun would look like a star of magnitude 13.14, in the direction where our sky has the constellation Cepheus. It would be invisible to the naked eye.
Planets
- TOI-4377 b 4.38-day orbit · 15.1 R⊕
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.