Star · G9V
KMT-2021-BLG-0171L
KMT-2021-BLG-0171L is a main-sequence star of spectral type G9V in the constellation Scorpius, 15,000 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Constellation | Scorpius |
|---|---|
| Distance | 15,000 light-years (4,600 pc) |
| Apparent magnitude | magnitude 19.36 |
| Absolute magnitude | magnitude 6.05 |
| Spectral type | G9V |
| Surface temperature | 5,200 K |
| Luminosity | 0.414 L☉ |
| Radius | 0.792 R☉ |
| Mass | 0.78 M☉ |
| Right ascension (J2000) | 17h 56m 58.0s |
| Declination (J2000) | −30° 05′ 35″ |
In the sky
A telescope is needed to see it: its apparent magnitude is 19.36. Visible from the whole Southern Hemisphere and north to latitude 60° N. South of latitude 60° S 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 15 thousand years ago. At that time Homo sapiens was spreading out of Africa; there was no farming yet. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 266 million years.
The Sun seen from there
From a planet around KMT-2021-BLG-0171L, the Sun would look like a star of magnitude 18.14, in the direction where our sky has the constellation Auriga. It would be invisible to the naked eye.
Planets
- KMT-2021-BLG-0171L b 3.35 R⊕
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.