GJ 9827 is 96.7 light-years from the Sun. The NASA Exoplanet Archive lists 3 planets around this K7 V star; the first was found in 2017 by transit (K2).
Fly there in 3DGJ 9827 b goes round its star every 29.0 hours, 73 times as often as Mercury goes round the Sun.
| Spectral type | K7 V |
| Surface temperature | 4,236 K |
| Mass | 0.62 solar masses |
| Radius | 0.58 solar radii |
| Luminosity | 0.099 times the Sun |
| Apparent magnitude | 10.37 |
| Age | about 5.465 billion years |
| Distance from the Sun | 96.7 light-years (29.7 parsecs) |
| Position (J2000) | RA 351.7718°, Dec -1.2853° |
| Constellation | Pisces |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| GJ 9827 b | 29.0 hours | 0.0189 AU | 1.44 R⊕ | 4.28 M⊕ | Transit, 2017 |
| GJ 9827 c | 3.65 days | 0.0395 AU | 1.13 R⊕ | 1.86 M⊕ | Transit, 2017 |
| GJ 9827 d | 6.20 days | 0.0530 AU | 1.98 R⊕ | 3.02 M⊕ | Transit, 2017 |
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.