Star · ?
GJ 3474B
GJ 3474B is a main-sequence star of spectral type ? in the constellation Canis Minor, 79.6 light-years from the Sun.
| Constellation | Canis Minor |
|---|---|
| Distance | 79.6 light-years (24.4 pc) |
| Apparent magnitude | magnitude 17.00 |
| Absolute magnitude | magnitude 15.06 |
| Spectral type | ? |
| Surface temperature | 3,650 K |
| Luminosity | 3.64 × 10⁻⁴ L☉ |
| Radius | 0.0477 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 8h 02m 20.8s |
| Declination (J2000) | +3° 19′ 52″ |
| Space velocity (relative to the Sun) | 63.6 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 17.00. Visible from the whole Northern Hemisphere and south to latitude 87° S. 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 1946. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.4 million years.
The Sun seen from there
From a planet around GJ 3474B, the Sun would look like a star of magnitude 6.77, in the direction where our sky has the constellation Aquila. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- CWISE J080436.67-000028.6 5.16 light-years
- GJ 3485 8.23 light-years
- PSO J117.0600-01.6779 9.03 light-years
- HIP 40774 9.03 light-years
- GJ 3473 9.54 light-years
- 2MASS J07415784+0531568 9.67 light-years
- Gl 287 9.84 light-years
- SDSS J083048.80+012831.1 10.6 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.