Star · ?
GJ 3503
GJ 3503 is a main-sequence star of spectral type ? in the constellation Hydra, 55.4 light-years from the Sun.
| Constellation | Hydra |
|---|---|
| Distance | 55.4 light-years (17.0 pc) |
| Apparent magnitude | magnitude 15.00 |
| Absolute magnitude | magnitude 13.85 |
| Spectral type | ? |
| Surface temperature | 3,650 K |
| Luminosity | 0.00111 L☉ |
| Radius | 0.0835 R☉ |
| Mass | 0.0985 M☉ (estimated) |
| Right ascension (J2000) | 8h 31m 23.0s |
| Declination (J2000) | −10° 29′ 53″ |
| Space velocity (relative to the Sun) | 54.4 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 15.00. Visible from the whole Southern Hemisphere and north to latitude 80° N. South of latitude 80° S it never sets. It stands highest at midnight in January, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1971. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 982 thousand years.
The Sun seen from there
From a planet around GJ 3503, the Sun would look like a star of magnitude 5.98, in the direction where our sky has the constellation Delphinus. It would be visible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- 2MASSI J0847287-153237 6.39 light-years
- Gl 327 7.33 light-years
- Gl 326A 7.64 light-years
- Gl 326B 8.00 light-years
- WISEA J082640.45-164031.8 9.32 light-years
- Gl 291B 9.86 light-years
- 9 Pup 9.88 light-years
- ULAS J090116.23-030635.0 10.3 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.