Star · M4V
2MASSW J1553214+210907
2MASSW J1553214+210907 is a main-sequence star of spectral type M4V in the constellation Serpens, 91.3 light-years from the Sun.
| Constellation | Serpens |
|---|---|
| Distance | 91.3 light-years (28.0 pc) |
| Apparent magnitude | magnitude 22.20 |
| Absolute magnitude | magnitude 19.96 |
| Spectral type | M4V |
| Surface temperature | 2,980 K |
| Luminosity | 1.62 × 10⁻⁵ L☉ |
| Radius | 0.0152 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 15h 53m 21.4s |
| Declination (J2000) | +21° 09′ 08″ |
| Space velocity (relative to the Sun) | 14.0 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 22.20. Visible from the whole Northern Hemisphere and south to latitude 69° S. North of latitude 69° N it never sets. It stands highest at midnight in May, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1935. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.6 million years.
The Sun seen from there
From a planet around 2MASSW J1553214+210907, the Sun would look like a star of magnitude 7.07, in the direction where our sky has the constellation Eridanus. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- GJ 3932 10.1 light-years
- GJ 9533 11.3 light-years
- GJ 3947 12.4 light-years
- SDSS J162603.03+211313.0 13.3 light-years
- GJ 3910 14.9 light-years
- HIP 80539 15.2 light-years
- GJ 3935A 15.3 light-years
- PSO J246.4222+15.4698 15.3 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.