Star · K9III
TOI-1811
TOI-1811 is a giant star of spectral type K9III in the constellation Coma Berenices, 413.1 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Constellation | Coma Berenices |
|---|---|
| Distance | 413.1 light-years (126.7 pc) |
| Apparent magnitude | magnitude 11.65 |
| Absolute magnitude | magnitude 6.14 |
| Spectral type | K9III |
| Surface temperature | 4,770 K |
| Luminosity | 0.275 L☉ |
| Radius | 0.769 R☉ |
| Mass | 0.817 M☉ |
| Age | 5.9 billion years |
| Metallicity [Fe/H] | 0.31 |
| Right ascension (J2000) | 12h 35m 41.4s |
| Declination (J2000) | +27° 12′ 52″ |
| Space velocity (relative to the Sun) | 30.1 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 11.65. Visible from the whole Northern Hemisphere and south to latitude 63° S. North of latitude 63° N it never sets. It stands highest at midnight in March, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1613. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 7.3 million years.
The Sun seen from there
From a planet around TOI-1811, the Sun would look like a star of magnitude 10.34, in the direction where our sky has the constellation Sculptor. It would be invisible to the naked eye.
Planets
- TOI-1811 b 3.71-day orbit · 11.1 R⊕
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.