Star · ?
GJ 4150
GJ 4150 is a main-sequence star of spectral type ? in the constellation Cepheus, 91.6 light-years from the Sun.
| Constellation | Cepheus |
|---|---|
| Distance | 91.6 light-years (28.1 pc) |
| Apparent magnitude | magnitude 13.08 |
| Absolute magnitude | magnitude 10.84 |
| Spectral type | ? |
| Surface temperature | 3,650 K |
| Luminosity | 0.0179 L☉ |
| Radius | 0.334 R☉ |
| Mass | 0.329 M☉ (estimated) |
| Right ascension (J2000) | 20h 34m 02.1s |
| Declination (J2000) | +64° 19′ 10″ |
| Space velocity (relative to the Sun) | 58.9 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 26° S. North of latitude 26° N it never sets. It stands highest at midnight in July, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1934. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.6 million years.
The Sun seen from there
From a planet around GJ 4150, the Sun would look like a star of magnitude 7.07, in the direction where our sky has the constellation Carina. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 99355 6.59 light-years
- WISE J204356.42+622048.9 6.80 light-years
- WISEA J205921.85+662725.2 8.58 light-years
- WISEPC J201546.27+664645.1 10.2 light-years
- GJ 9677B 11.1 light-years
- GJ 9677A 11.1 light-years
- GJ 9706 11.1 light-years
- HIP 103650 11.5 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.