Star · K0
TOI-1742
TOI-1742 is a main-sequence star of spectral type K0 in the constellation Draco, 238.2 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Constellation | Draco |
|---|---|
| Distance | 238.2 light-years (73.0 pc) |
| Apparent magnitude | magnitude 8.94 |
| Absolute magnitude | magnitude 4.62 |
| Spectral type | K0 |
| Surface temperature | 5,820 K |
| Luminosity | 1.32 L☉ |
| Radius | 1.13 R☉ |
| Mass | 1.09 M☉ |
| Age | 3.9 billion years |
| Metallicity [Fe/H] | 0.19 |
| Right ascension (J2000) | 17h 09m 18.9s |
| Declination (J2000) | +71° 52′ 35″ |
| Space velocity (relative to the Sun) | 38.9 km/s |
In the sky
Too faint for the naked eye (magnitude 8.94); binoculars will find it. Visible from the whole Northern Hemisphere and south to latitude 18° S. North of latitude 18° 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 1788. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 4.2 million years.
The Sun seen from there
From a planet around TOI-1742, the Sun would look like a star of magnitude 9.15, in the direction where our sky has the constellation Mensa. It would be invisible to the naked eye.
Planets
- TOI-1742 b 21.3-day orbit · 2.37 R⊕
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 84179 13.2 light-years
- HIP 86481 17.3 light-years
- HIP 84714 18.8 light-years
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.