Star · G2V
Gl 897B
Gl 897B is a main-sequence star of spectral type G2V in the constellation Aquarius, 42.1 light-years from the Sun.
| Constellation | Aquarius |
|---|---|
| Distance | 42.1 light-years (12.9 pc) |
| Apparent magnitude | magnitude 11.40 |
| Absolute magnitude | magnitude 10.85 |
| Spectral type | G2V |
| Surface temperature | 5,780 K |
| Luminosity | 0.00426 L☉ |
| Radius | 0.0651 R☉ |
| Mass | 0.176 M☉ (estimated) |
| Right ascension (J2000) | 23h 32m 46.4s |
| Declination (J2000) | −16° 45′ 08″ |
| Space velocity (relative to the Sun) | 367.4 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 11.40. Visible from the whole Southern Hemisphere and north to latitude 73° N. South of latitude 73° S it never sets. It stands highest at midnight in September, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1984. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 747 thousand years.
The Sun seen from there
From a planet around Gl 897B, the Sun would look like a star of magnitude 5.38, in the direction where our sky has the constellation Leo. It would be visible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- GJ 4352 1.29 light-years
- WISEPC J231939.13-184404.3 3.13 light-years
- Gl 898 5.37 light-years
- 2MASSI J2356547-155310 6.92 light-years
- 2MASS J23185497-1301106 7.62 light-years
- TRAPPIST-1 9.73 light-years
- GJ 1284 10.2 light-years
- Gl 891 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.