Star · ?
GJ 4354
GJ 4354 is a main-sequence star of spectral type ? in the constellation Andromeda, 68.9 light-years from the Sun.
| Constellation | Andromeda |
|---|---|
| Distance | 68.9 light-years (21.1 pc) |
| Apparent magnitude | magnitude 13.58 |
| Absolute magnitude | magnitude 11.96 |
| Spectral type | ? |
| Surface temperature | 3,650 K |
| Luminosity | 0.00638 L☉ |
| Radius | 0.2 R☉ |
| Mass | 0.21 M☉ (estimated) |
| Right ascension (J2000) | 23h 38m 41.3s |
| Declination (J2000) | +39° 09′ 23″ |
| Space velocity (relative to the Sun) | 56.9 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 13.58. 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 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 1957. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.2 million years.
The Sun seen from there
From a planet around GJ 4354, the Sun would look like a star of magnitude 6.45, in the direction where our sky has the constellation Centaurus. It would be visible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- Gl 906 5.65 light-years
- Gl 894.4 7.19 light-years
- CWISEP J235547.99+380438.9 7.75 light-years
- GJ 4369 8.15 light-years
- HIP 115341 8.40 light-years
- WISE J233527.07+451140.9 9.13 light-years
- GJ 4351 10.4 light-years
- Gl 905.2B 11.2 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.