Star · F1V
TOI-4791
TOI-4791 is a main-sequence star of spectral type F1V in the constellation Canis Major, 1,040 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Constellation | Canis Major |
|---|---|
| Distance | 1,040 light-years (318.9 pc) |
| Apparent magnitude | magnitude 11.58 |
| Absolute magnitude | magnitude 4.06 |
| Spectral type | F1V |
| Surface temperature | 6,060 K |
| Luminosity | 2.4 L☉ |
| Radius | 1.41 R☉ |
| Mass | 1.24 M☉ |
| Age | 3.3 billion years |
| Metallicity [Fe/H] | 0.21 |
| Right ascension (J2000) | 7h 17m 33.2s |
| Declination (J2000) | −19° 49′ 44″ |
| Space velocity (relative to the Sun) | 41.9 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 11.58. Visible from the whole Southern Hemisphere and north to latitude 70° N. South of latitude 70° S it never sets. It stands highest at midnight in January, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 986. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 18 million years.
The Sun seen from there
From a planet around TOI-4791, the Sun would look like a star of magnitude 12.35, in the direction where our sky has the constellation Sagitta. It would be invisible to the naked eye.
Planets
- TOI-4791 b 4.28-day orbit · 12.4 R⊕
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.