NGTS-21 is 1,934 light-years from the Sun. The NASA Exoplanet Archive lists 1 planet around this K3 V star; the first was found in 2022 by transit (Next-Generation Transit Survey (NGTS)).
Fly there in 3DNGTS-21 b goes round its star every 37.0 hours, 57 times as often as Mercury goes round the Sun.
| Spectral type | K3 V |
| Surface temperature | 4,660 K |
| Mass | 0.72 solar masses |
| Radius | 0.86 solar radii |
| Luminosity | 0.2894 times the Sun |
| Apparent magnitude | 15.506 |
| Age | about 10.02 billion years |
| Distance from the Sun | 1933.8 light-years (592.9 parsecs) |
| Position (J2000) | RA 311.2583°, Dec -35.4278° |
| Constellation | Microscopium |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| NGTS-21 b | 37.0 hours | 0.0236 AU | 14.908 R⊕ | 750.08 M⊕ | Transit, 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.