Star · M0
Gl 550.1
Gl 550.1 is a main-sequence star of spectral type M0 in the constellation Boötes, 149.2 light-years from the Sun.
| Other names | HIP 70715 |
|---|---|
| Constellation | Boötes |
| Distance | 149.2 light-years (45.7 pc) |
| Apparent magnitude | magnitude 10.93 |
| Absolute magnitude | magnitude 7.63 |
| Spectral type | M0 |
| Surface temperature | 4,240 K |
| Luminosity | 0.172 L☉ |
| Radius | 0.77 R☉ |
| Mass | 0.644 M☉ (estimated) |
| Right ascension (J2000) | 14h 27m 45.0s |
| Declination (J2000) | +23° 50′ 27″ |
| Space velocity (relative to the Sun) | 128.7 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 10.93. Visible from the whole Northern Hemisphere and south to latitude 66° S. North of latitude 66° 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 1877. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 2.6 million years.
The Sun seen from there
From a planet around Gl 550.1, the Sun would look like a star of magnitude 8.13, in the direction where our sky has the constellation Fornax. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- SDSS J142227.25+221557.1 9.07 light-years
- HIP 70520 10.7 light-years
- HIP 71899 11.0 light-years
- HIP 69999 13.3 light-years
- SDSS J142058.30+213156.6 14.1 light-years
- HIP 69860 15.2 light-years
- HIP 68785 15.3 light-years
- HIP 69985 15.5 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.