Star · F8
TOI-2128
TOI-2128 is a main-sequence star of spectral type F8 in the constellation Hercules, 119.6 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Other names | HIP 83827 |
|---|---|
| Constellation | Hercules |
| Distance | 119.6 light-years (36.7 pc) |
| Apparent magnitude | magnitude 7.21 |
| Absolute magnitude | magnitude 4.39 |
| Spectral type | F8 |
| Surface temperature | 5,970 K |
| Luminosity | 1.43 L☉ |
| Radius | 1.12 R☉ |
| Mass | 1.03 M☉ |
| Age | 4.7 billion years |
| Metallicity [Fe/H] | -0.07 |
| Right ascension (J2000) | 17h 07m 55.8s |
| Declination (J2000) | +32° 06′ 20″ |
| Space velocity (relative to the Sun) | 30.9 km/s |
In the sky
Too faint for the naked eye (magnitude 7.21); binoculars will find it. Visible from the whole Northern Hemisphere and south to latitude 58° S. North of latitude 58° N it never sets. It stands highest at midnight in June, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1906. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 2.1 million years.
The Sun seen from there
From a planet around TOI-2128, the Sun would look like a star of magnitude 7.65, in the direction where our sky has the constellation Columba. It would be invisible to the naked eye.
Planets
- TOI-2128 b 16.3-day orbit · 2.09 R⊕
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- SDSS J165950.91+351508.0 9.74 light-years
- HIP 82042 10.6 light-years
- HIP 83141 11.4 light-years
- HIP 83113 11.6 light-years
- SDSS J165450.79+374714.6 13.4 light-years
- ULAS J163931.52+323212.7 13.5 light-years
- WISE J173332.50+314458.3 15.3 light-years
- HIP 85137 15.5 light-years
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.