Star · ?
GJ 1157
GJ 1157 is a main-sequence star of spectral type ? in the constellation Centaurus, 51.7 light-years from the Sun.
| Constellation | Centaurus |
|---|---|
| Distance | 51.7 light-years (15.9 pc) |
| Apparent magnitude | magnitude 13.62 |
| Absolute magnitude | magnitude 12.62 |
| Spectral type | ? |
| Surface temperature | 3,640 K |
| Luminosity | 0.00354 L☉ |
| Radius | 0.15 R☉ |
| Mass | 0.163 M☉ (estimated) |
| Right ascension (J2000) | 12h 23m 03.5s |
| Declination (J2000) | −46° 37′ 36″ |
| Space velocity (relative to the Sun) | 75.1 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 13.62. Visible from the whole Southern Hemisphere and north to latitude 43° N. South of latitude 43° S it never sets. It stands highest at midnight in March, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1974. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 918 thousand years.
The Sun seen from there
From a planet around GJ 1157, the Sun would look like a star of magnitude 5.83, in the direction where our sky has the constellation Andromeda. It would be visible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- GJ 2095 4.91 light-years
- VHS J125804.89-441232.4 6.57 light-years
- HD 113538 8.30 light-years
- CWISE J131548.23-493645.4 8.47 light-years
- GJ 3770 8.48 light-years
- GJ 1147 8.69 light-years
- 2MASS J11263991-5003550 9.14 light-years
- GJ 3764 10.2 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.