Star · F1V
TOI-4155
TOI-4155 is a main-sequence star of spectral type F1V in the constellation Cepheus, 781.7 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Constellation | Cepheus |
|---|---|
| Distance | 781.7 light-years (239.7 pc) |
| Apparent magnitude | magnitude 11.89 |
| Absolute magnitude | magnitude 4.99 |
| Spectral type | F1V |
| Surface temperature | 5,720 K |
| Luminosity | 1.16 L☉ |
| Radius | 0.95 R☉ |
| Mass | 1.16 M☉ |
| Metallicity [Fe/H] | 0.11 |
| Right ascension (J2000) | 21h 42m 32.6s |
| Declination (J2000) | +77° 44′ 03″ |
| Space velocity (relative to the Sun) | 47.6 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 11.89. Visible from the whole Northern Hemisphere and south to latitude 12° S. North of latitude 12° N it never sets.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1244. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 14 million years.
The Sun seen from there
From a planet around TOI-4155, the Sun would look like a star of magnitude 11.73, in the direction where our sky has the constellation Chamaeleon. It would be invisible to the naked eye.
Planets
- TOI-4155 b 3.32-day orbit · 3.21 R⊕
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.