Star · K9V
2MASS J22490917+3205489
2MASS J22490917+3205489 is a main-sequence star of spectral type K9V in the constellation Pegasus, 76.3 light-years from the Sun.
| Constellation | Pegasus |
|---|---|
| Distance | 76.3 light-years (23.4 pc) |
| Apparent magnitude | magnitude 21.83 |
| Absolute magnitude | magnitude 19.99 |
| Spectral type | K9V |
| Surface temperature | 3,820 K |
| Luminosity | 3.09 × 10⁻⁶ L☉ |
| Radius | 0.00402 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 22h 49m 10.1s |
| Declination (J2000) | +32° 05′ 46″ |
| Space velocity (relative to the Sun) | 79.3 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 21.83. Visible from the whole Northern Hemisphere and south to latitude 58° S. North of latitude 58° N it never sets. It stands highest at midnight in August, 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 2MASS J22490917+3205489, the Sun would look like a star of magnitude 6.67, in the direction where our sky has the constellation Antlia. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- GJ 4300 4.80 light-years
- WISEA J230329.45+315022.7 7.82 light-years
- GJ 4320 9.57 light-years
- 2MASS J22425317+2542573 10.7 light-years
- GJ 1275 11.5 light-years
- GJ 4287 11.8 light-years
- Gl 850 11.9 light-years
- GJ 4339 13.2 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.