Star · M4V
2MASS J09490860-1545485
2MASS J09490860-1545485 is a main-sequence star of spectral type M4V in the constellation Hydra, 77.3 light-years from the Sun.
| Constellation | Hydra |
|---|---|
| Distance | 77.3 light-years (23.7 pc) |
| Apparent magnitude | magnitude 23.65 |
| Absolute magnitude | magnitude 21.78 |
| Spectral type | M4V |
| Surface temperature | 2,980 K |
| Luminosity | 3.06 × 10⁻⁶ L☉ |
| Radius | 0.00658 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 9h 49m 08.6s |
| Declination (J2000) | −15° 45′ 49″ |
| Space velocity (relative to the Sun) | 12.2 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 23.65. Visible from the whole Southern Hemisphere and north to latitude 74° N. South of latitude 74° S it never sets. It stands highest at midnight in February, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1949. 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 2MASS J09490860-1545485, the Sun would look like a star of magnitude 6.70, in the direction where our sky has the constellation Pegasus. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- GJ 3581 6.38 light-years
- DENIS J1004403-131818 7.05 light-years
- HIP 49366 7.50 light-years
- CWISE J095316.32-094318.9 8.37 light-years
- LTT 3780 12.0 light-years
- CWISE J094925.88-102601.9 13.2 light-years
- GJ 3561 13.7 light-years
- WISE J094020.10-220820.5 14.5 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.