Star · K3V
GJ 3743
GJ 3743 is a main-sequence star of spectral type K3V in the constellation Ursa Major, 74.1 light-years from the Sun.
| Other names | HIP 61946 |
|---|---|
| Constellation | Ursa Major |
| Distance | 74.1 light-years (22.7 pc) |
| Apparent magnitude | magnitude 8.27 |
| Absolute magnitude | magnitude 6.49 |
| Spectral type | K3V |
| Surface temperature | 4,850 K |
| Luminosity | 0.321 L☉ |
| Radius | 0.801 R☉ |
| Mass | 0.752 M☉ (estimated) |
| Right ascension (J2000) | 12h 41m 44.5s |
| Declination (J2000) | +55° 43′ 28″ |
| Space velocity (relative to the Sun) | 16.6 km/s |
In the sky
Too faint for the naked eye (magnitude 8.27); binoculars will find it. Visible from the whole Northern Hemisphere and south to latitude 34° S. North of latitude 34° 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 1952. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.3 million years.
The Sun seen from there
From a planet around GJ 3743, the Sun would look like a star of magnitude 6.61, 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):
- 2MASSW J1239272+551537 2.96 light-years
- GJ 3754 3.76 light-years
- HIP 61053 4.18 light-years
- GJ 3745 4.84 light-years
- WISEA J122036.38+540717.3 7.57 light-years
- GJ 3756 7.70 light-years
- GJ 1159B 8.45 light-years
- GJ 1159A 8.53 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.