KMT-2021-BLG-1077L is 26,875 light-years from the Sun. The NASA Exoplanet Archive lists 2 planets around this M V star; the first was found in 2022 by microlensing (KMTNet).
Fly there in 3DKMT-2021-BLG-1077L c was found by microlensing: its star briefly magnified the light of a more distant one. That alignment happens once, so the planet cannot be watched again this way.
Where the archive gives only a period or only an orbit size, the other is worked out from Kepler’s third law with the star’s mass.
| Spectral type | M V |
| Mass | 0.14 solar masses |
| Distance from the Sun | 26875.0 light-years (8239.9 parsecs) |
| Position (J2000) | RA 266.4891°, Dec -33.8428° |
| Constellation | Scorpius |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| KMT-2021-BLG-1077L c | 875.5 days from Kepler’s law | 0.930 AU | 10.6 R⊕ estimated | 79.457 M⊕ | Microlensing, 2022 |
| KMT-2021-BLG-1077L b | 3.8 years from Kepler’s law | 1.260 AU | 9.86 R⊕ estimated | 69.922 M⊕ | Microlensing, 2022 |
Values are the NASA Exoplanet Archive’s composite parameters. A radius marked estimated comes from a mass–radius relation; a mass marked minimum is M sin i. Planet sizes and colours in the 3D view are renderings: none of these worlds has been photographed as more than a point of light.