Star · M0
HIP 55507
HIP 55507 is a main-sequence star of spectral type M0 in the constellation Ursa Major, 83.0 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Other names | GJ 3656 |
|---|---|
| Constellation | Ursa Major |
| Distance | 83.0 light-years (25.4 pc) |
| Apparent magnitude | magnitude 9.80 |
| Absolute magnitude | magnitude 7.77 |
| Spectral type | M0 |
| Surface temperature | 4,170 K |
| Luminosity | 0.143 L☉ |
| Radius | 0.724 R☉ |
| Mass | 0.65 M☉ |
| Right ascension (J2000) | 11h 22m 05.7s |
| Declination (J2000) | +46° 54′ 30″ |
| Space velocity (relative to the Sun) | 29.3 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 9.80. Visible from the whole Northern Hemisphere and south to latitude 43° S. North of latitude 43° N it never sets. It stands highest at midnight in March, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1943. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.5 million years.
The Sun seen from there
From a planet around HIP 55507, the Sun would look like a star of magnitude 6.86, in the direction where our sky has the constellation Grus. It would be invisible to the naked eye.
Planets
- HIP 55507 b 5,140-day orbit · 12.6 R⊕
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- GJ 3646 5.27 light-years
- 2MASS J11000965+4957470 6.89 light-years
- Gl 433.2A 8.44 light-years
- Gl 433.2B 8.75 light-years
- SDSS J105213.51+442255.7 8.87 light-years
- HIP 57493 10.1 light-years
- GJ 3628B 10.2 light-years
- HIP 52470 10.8 light-years
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.