Star · K2V
TOI-4145 A
TOI-4145 A is a main-sequence star of spectral type K2V in the constellation Cepheus, 665.4 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Constellation | Cepheus |
|---|---|
| Distance | 665.4 light-years (204.0 pc) |
| Apparent magnitude | magnitude 12.18 |
| Absolute magnitude | magnitude 5.63 |
| Spectral type | K2V |
| Surface temperature | 5,280 K |
| Luminosity | 0.516 L☉ |
| Radius | 0.859 R☉ |
| Mass | 0.905 M☉ |
| Age | 4.7 billion years |
| Metallicity [Fe/H] | 0.17 |
| Right ascension (J2000) | 2h 37m 43.1s |
| Declination (J2000) | +80° 16′ 03″ |
| Space velocity (relative to the Sun) | 17.3 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 12.18. Visible from the whole Northern Hemisphere and south to latitude 10° S. North of latitude 10° N it never sets.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1361. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 12 million years.
The Sun seen from there
From a planet around TOI-4145 A, the Sun would look like a star of magnitude 11.38, in the direction where our sky has the constellation Apus. It would be invisible to the naked eye.
Planets
- TOI-4145 A b 4.07-day orbit · 13.3 R⊕
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.