Star · M4V
ULAS J074720.07+245516.3
ULAS J074720.07+245516.3 is a main-sequence star of spectral type M4V in the constellation Gemini, 133.7 light-years from the Sun.
| Constellation | Gemini |
|---|---|
| Distance | 133.7 light-years (41.0 pc) |
| Apparent magnitude | magnitude 25.73 |
| Absolute magnitude | magnitude 22.67 |
| Spectral type | M4V |
| Surface temperature | 2,980 K |
| Luminosity | 1.35 × 10⁻⁶ L☉ |
| Radius | 0.00437 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 7h 47m 20.2s |
| Declination (J2000) | +24° 55′ 18″ |
| Space velocity (relative to the Sun) | 20.2 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 25.73. Visible from the whole Northern Hemisphere and south to latitude 65° S. North of latitude 65° N it never sets. It stands highest at midnight in January, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1892. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 2.4 million years.
The Sun seen from there
From a planet around ULAS J074720.07+245516.3, the Sun would look like a star of magnitude 7.89, in the direction where our sky has the constellation Sagittarius. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 38172 1.48 light-years
- HIP 36874 9.00 light-years
- GJ 9238 9.93 light-years
- 2MASSI J0753321+291711 11.2 light-years
- SDSS J075656.54+231458.5 11.8 light-years
- ψ Cnc 12.4 light-years
- ι Gem 13.4 light-years
- κ Gem 14.1 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.