Star · G2V
OGLE-2017-BLG-1522L
OGLE-2017-BLG-1522L is a main-sequence star of spectral type G2V in the constellation Sagittarius, 24,400 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Constellation | Sagittarius |
|---|---|
| Distance | 24,400 light-years (7,490 pc) |
| Apparent magnitude | magnitude 35.31 |
| Absolute magnitude | magnitude 20.94 |
| Spectral type | G2V |
| Surface temperature | 5,780 K |
| Luminosity | 3.91 × 10⁻⁷ L☉ |
| Radius | 6.24 × 10⁻⁴ R☉ |
| Mass | 0.045 M☉ (estimated) |
| Right ascension (J2000) | 18h 01m 16.6s |
| Declination (J2000) | −28° 27′ 43″ |
In the sky
A telescope is needed to see it: its apparent magnitude is 35.31. Visible from the whole Southern Hemisphere and north to latitude 62° N. South of latitude 62° 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 24 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 433 million years.
The Sun seen from there
From a planet around OGLE-2017-BLG-1522L, the Sun would look like a star of magnitude 19.20, in the direction where our sky has the constellation Auriga. It would be invisible to the naked eye.
Planets
- OGLE-2017-BLG-1522L b 14 R⊕
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.