Star · M0 V
TOI-1278
TOI-1278 is a main-sequence star of spectral type M0 V in the constellation Cygnus, 246.1 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Constellation | Cygnus |
|---|---|
| Distance | 246.1 light-years (75.5 pc) |
| Apparent magnitude | magnitude 13.43 |
| Absolute magnitude | magnitude 9.04 |
| Spectral type | M0 V |
| Surface temperature | 3,800 K |
| Luminosity | 0.0614 L☉ |
| Radius | 0.573 R☉ |
| Mass | 0.54 M☉ |
| Metallicity [Fe/H] | -0.01 |
| Right ascension (J2000) | 21h 21m 54.8s |
| Declination (J2000) | +35° 38′ 55″ |
| Space velocity (relative to the Sun) | 46.7 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 13.43. Visible from the whole Northern Hemisphere and south to latitude 54° S. North of latitude 54° N it never sets. It stands highest at midnight in August, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1780. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 4.4 million years.
The Sun seen from there
From a planet around TOI-1278, the Sun would look like a star of magnitude 9.22, in the direction where our sky has the constellation Pyxis. It would be invisible to the naked eye.
Planets
- TOI-1278 b 14.5-day orbit · 12.2 R⊕
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 105530 8.29 light-years
- HIP 106473 17.3 light-years
- HIP 105390 19.8 light-years
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.