Star · M2V
2MASS J21373742+0808463
2MASS J21373742+0808463 is a main-sequence star of spectral type M2V in the constellation Pegasus, 49.1 light-years from the Sun.
| Constellation | Pegasus |
|---|---|
| Distance | 49.1 light-years (15.1 pc) |
| Apparent magnitude | magnitude 21.76 |
| Absolute magnitude | magnitude 20.87 |
| Spectral type | M2V |
| Surface temperature | 3,360 K |
| Luminosity | 2.87 × 10⁻⁶ L☉ |
| Radius | 0.00501 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 21h 37m 38.1s |
| Declination (J2000) | +8° 08′ 48″ |
| Space velocity (relative to the Sun) | 49.7 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 21.76. Visible from the whole Northern Hemisphere and south to latitude 82° S. 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 1977. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 871 thousand years.
The Sun seen from there
From a planet around 2MASS J21373742+0808463, the Sun would look like a star of magnitude 5.72, in the direction where our sky has the constellation Hydra. It would be visible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.