Star · M4V
2MASS J13451417+4757231
2MASS J13451417+4757231 is a main-sequence star of spectral type M4V in the constellation Ursa Major, 127.2 light-years from the Sun.
| Constellation | Ursa Major |
|---|---|
| Distance | 127.2 light-years (39.0 pc) |
| Apparent magnitude | magnitude 22.00 |
| Absolute magnitude | magnitude 19.04 |
| Spectral type | M4V |
| Surface temperature | 2,980 K |
| Luminosity | 3.79 × 10⁻⁵ L☉ |
| Radius | 0.0232 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 13h 45m 14.2s |
| Declination (J2000) | +47° 57′ 23″ |
| Space velocity (relative to the Sun) | 29.9 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 22.00. Visible from the whole Northern Hemisphere and south to latitude 42° S. North of latitude 42° N it never sets. It stands highest at midnight in April, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1899. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 2.3 million years.
The Sun seen from there
From a planet around 2MASS J13451417+4757231, the Sun would look like a star of magnitude 7.79, in the direction where our sky has the constellation Phoenix. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- 2MASS J14044495+4634297 8.07 light-years
- HIP 66262 8.14 light-years
- HIP 69518 11.4 light-years
- HIP 64872 11.7 light-years
- TOI-5713 12.8 light-years
- SDSS J135923.99+472843.2 14.0 light-years
- HIP 66315 14.7 light-years
- HIP 65775 15.0 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.