Star · K7V
TOI-544
TOI-544 is a main-sequence star of spectral type K7V in the constellation Orion, 133.5 light-years from the Sun. It is orbited by 2 confirmed exoplanet(s).
| Constellation | Orion |
|---|---|
| Distance | 133.5 light-years (40.9 pc) |
| Apparent magnitude | magnitude 10.90 |
| Absolute magnitude | magnitude 7.84 |
| Spectral type | K7V |
| Surface temperature | 4,170 K |
| Luminosity | 0.126 L☉ |
| Radius | 0.623 R☉ |
| Mass | 0.631 M☉ |
| Age | 9.0 billion years |
| Metallicity [Fe/H] | -0.17 |
| Right ascension (J2000) | 5h 29m 09.6s |
| Declination (J2000) | −0° 20′ 33″ |
| Space velocity (relative to the Sun) | 18.5 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 10.90. Visible from the whole Southern Hemisphere and north to latitude 90° N. It stands highest at midnight in December, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1893. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 2.4 million years.
The Sun seen from there
From a planet around TOI-544, the Sun would look like a star of magnitude 7.89, in the direction where our sky has the constellation Ophiuchus. It would be invisible to the naked eye.
Planets
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.