Star · K V
TOI-2018
TOI-2018 is a main-sequence star of spectral type K V in the constellation Corona Borealis, 91.4 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Other names | HIP 74981 |
|---|---|
| Constellation | Corona Borealis |
| Distance | 91.4 light-years (28.0 pc) |
| Apparent magnitude | magnitude 10.25 |
| Absolute magnitude | magnitude 8.01 |
| Spectral type | K V |
| Surface temperature | 4,170 K |
| Luminosity | 0.1 L☉ |
| Radius | 0.62 R☉ |
| Mass | 0.57 M☉ |
| Metallicity [Fe/H] | -0.58 |
| Right ascension (J2000) | 15h 19m 21.2s |
| Declination (J2000) | +29° 12′ 23″ |
| Space velocity (relative to the Sun) | 61.4 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 10.25. Visible from the whole Northern Hemisphere and south to latitude 61° S. North of latitude 61° N it never sets. It stands highest at midnight in May, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1935. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.6 million years.
The Sun seen from there
From a planet around TOI-2018, the Sun would look like a star of magnitude 7.07, in the direction where our sky has the constellation Fornax. It would be invisible to the naked eye.
Planets
- TOI-2018 b 7.44-day orbit · 2.27 R⊕
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.