Star · K2V
TOI-1533
TOI-1533 is a main-sequence star of spectral type K2V in the constellation Cassiopeia, 326.1 light-years from the Sun. It is orbited by 2 confirmed exoplanet(s).
| Constellation | Cassiopeia |
|---|---|
| Distance | 326.1 light-years (100.0 pc) |
| Apparent magnitude | magnitude 11.05 |
| Absolute magnitude | magnitude 6.05 |
| Spectral type | K2V |
| Surface temperature | 5,150 K |
| Luminosity | 0.45 L☉ |
| Radius | 0.849 R☉ |
| Mass | 0.88 M☉ |
| Age | 6.9 billion years |
| Metallicity [Fe/H] | 0.24 |
| Right ascension (J2000) | 23h 40m 59.2s |
| Declination (J2000) | +57° 29′ 08″ |
| Space velocity (relative to the Sun) | 30.3 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 11.05. Visible from the whole Northern Hemisphere and south to latitude 33° S. North of latitude 33° N it never sets. It stands highest at midnight in September, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1700. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 5.8 million years.
The Sun seen from there
From a planet around TOI-1533, the Sun would look like a star of magnitude 9.83, in the direction where our sky has the constellation Centaurus. It would be invisible to the naked eye.
Planets
- TOI-1533 b 3.65-day orbit · 2.89 R⊕
- TOI-1533 c 8.06-day orbit · 7.5 R⊕
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 117259 15.4 light-years
- HIP 117450 15.6 light-years
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.