Star · ?
GJ 3745
GJ 3745 is a main-sequence star of spectral type ? in the constellation Ursa Major, 70.9 light-years from the Sun.
| Constellation | Ursa Major |
|---|---|
| Distance | 70.9 light-years (21.7 pc) |
| Apparent magnitude | magnitude 14.42 |
| Absolute magnitude | magnitude 12.73 |
| Spectral type | ? |
| Surface temperature | 3,650 K |
| Luminosity | 0.00311 L☉ |
| Radius | 0.14 R☉ |
| Mass | 0.154 M☉ (estimated) |
| Right ascension (J2000) | 12h 45m 48.0s |
| Declination (J2000) | +52° 55′ 21″ |
| Space velocity (relative to the Sun) | 27.1 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 14.42. Visible from the whole Northern Hemisphere and south to latitude 37° S. North of latitude 37° 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 1955. 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 3745, the Sun would look like a star of magnitude 6.52, 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):
- GJ 3756 3.21 light-years
- HIP 61053 3.38 light-years
- GJ 3743 4.84 light-years
- WISEA J122036.38+540717.3 5.66 light-years
- Gl 498 5.75 light-years
- GJ 3754 6.88 light-years
- 2MASSW J1239272+551537 6.88 light-years
- GJ 3713 8.52 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.