GJ 357
GJ 357 is a star with planets in the constellation Hydra, about 30.8 light-years from Earth.
Facts
| Type | Star with planets |
|---|---|
| Constellation | Hydra |
| Position (J2000) | 9h 36m 01s, −21° 39′ |
| Distance | 30.8 light-years (its light set off about 30.8 years ago) |
| Brightness | magnitude 10.91 (smaller is brighter; the faintest stars the eye sees are about 6) |
Planets
3 known| Planet | Size (Earth = 1) | Year (days) | Habitable zone |
|---|---|---|---|
| GJ 357 b | 1.2 | 3.93 | no |
| GJ 357 c | 1.66 | 9.12 | no |
| GJ 357 d | 2.34 | 55.66 | yes (conservative) |
When and how to see it
GJ 357 is highest in the sky at midnight in February. From India (about 20° N) it climbs to about 48° above the horizon; from 50° N, to about 18°. To see it you need a small telescope.
Heights are worked out for India and for 50° N. Set your location in Settings to see them for where you are.
For tonight's best time from your own town, the darkness and the Moon, open it on the map and see its "Tonight from your location" card.
More in Hydra
- Alphard
- Ashlesha
- Ghost of Jupiter
- GJ 433
- M48 (NGC 2548)
- M68 (NGC 4590)
- Southern Pinwheel Galaxy (M83)
- Spiderweb Galaxy
Everything in Hydra · All 88 constellations · All sky objects
Data: · NASA Exoplanet Archive · Data sources & credits