Star · K3V
TOI-1855
TOI-1855 is a main-sequence star of spectral type K3V in the constellation Boötes, 575.7 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Constellation | Boötes |
|---|---|
| Distance | 575.7 light-years (176.5 pc) |
| Apparent magnitude | magnitude 11.30 |
| Absolute magnitude | magnitude 5.07 |
| Spectral type | K3V |
| Surface temperature | 5,360 K |
| Luminosity | 0.804 L☉ |
| Radius | 1.04 R☉ |
| Mass | 0.987 M☉ |
| Age | 8.2 billion years |
| Metallicity [Fe/H] | 0.40 |
| Right ascension (J2000) | 13h 41m 25.0s |
| Declination (J2000) | +17° 41′ 14″ |
| Space velocity (relative to the Sun) | 97.7 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 11.30. Visible from the whole Northern Hemisphere and south to latitude 72° S. North of latitude 72° N it never sets. It stands highest at midnight in April, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1450. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 10 million years.
The Sun seen from there
From a planet around TOI-1855, the Sun would look like a star of magnitude 11.06, in the direction where our sky has the constellation Cetus. It would be invisible to the naked eye.
Planets
- TOI-1855 b 1.36-day orbit · 18.5 R⊕
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.