Star · ?
GJ 1155B
GJ 1155B is a white dwarf of spectral type ? in the constellation Virgo, 76.3 light-years from the Sun.
| Constellation | Virgo |
|---|---|
| Distance | 76.3 light-years (23.4 pc) |
| Apparent magnitude | magnitude 15.32 |
| Absolute magnitude | magnitude 13.48 |
| Spectral type | ? |
| Surface temperature | 8,000 K |
| Luminosity | 3.68 × 10⁻⁴ L☉ |
| Radius | 0.012 R☉ |
| Mass | 0.6 M☉ (estimated) |
| Right ascension (J2000) | 12h 16m 51.3s |
| Declination (J2000) | +2° 58′ 09″ |
| Space velocity (relative to the Sun) | 78.8 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 15.32. Visible from the whole Northern Hemisphere and south to latitude 87° S. 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 1950. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.4 million years.
The Sun seen from there
From a planet around GJ 1155B, the Sun would look like a star of magnitude 6.67, in the direction where our sky has the constellation Pisces. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- GJ 1155A 0.08 light-years
- SDSS J120747.17+024424.8 4.85 light-years
- SDSS J115553.86+055957.5 10.2 light-years
- GJ 9381 10.6 light-years
- ULAS J123828.51+095351.3 11.6 light-years
- ULAS J115508.39+044502.3 12.0 light-years
- GJ 3731A 13.3 light-years
- Gl 464 13.9 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.