Star · ?
GJ 3445
GJ 3445 is a main-sequence star of spectral type ? in the constellation Lynx, 126.1 light-years from the Sun.
| Constellation | Lynx |
|---|---|
| Distance | 126.1 light-years (38.7 pc) |
| Apparent magnitude | magnitude 13.08 |
| Absolute magnitude | magnitude 10.14 |
| Spectral type | ? |
| Surface temperature | 3,650 K |
| Luminosity | 0.0338 L☉ |
| Radius | 0.46 R☉ |
| Mass | 0.429 M☉ (estimated) |
| Right ascension (J2000) | 7h 31m 56.9s |
| Declination (J2000) | +39° 13′ 42″ |
| Space velocity (relative to the Sun) | 53.8 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 13.08. Visible from the whole Northern Hemisphere and south to latitude 51° S. North of latitude 51° 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 1900. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 2.2 million years.
The Sun seen from there
From a planet around GJ 3445, the Sun would look like a star of magnitude 7.77, 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):
- WISEA J071138.88+370601.0 10.1 light-years
- HIP 38126 10.3 light-years
- HIP 37488 10.3 light-years
- HIP 37177 11.2 light-years
- HIP 35198 13.2 light-years
- GJ 3458B 13.2 light-years
- HIP 35755 13.2 light-years
- HIP 35643 14.6 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.