Star · K7V
HIP 4845
HIP 4845 is a main-sequence star of spectral type K7V in the constellation Cetus, 68.8 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Other names | GJ 3072 |
|---|---|
| Constellation | Cetus |
| Distance | 68.8 light-years (21.1 pc) |
| Apparent magnitude | magnitude 10.06 |
| Absolute magnitude | magnitude 8.44 |
| Spectral type | K7V |
| Surface temperature | 4,010 K |
| Luminosity | 0.0925 L☉ |
| Radius | 0.604 R☉ |
| Mass | 0.62 M☉ |
| Right ascension (J2000) | 1h 02m 21.1s |
| Declination (J2000) | −10° 25′ 26″ |
| Space velocity (relative to the Sun) | 19.9 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 10.06. Visible from the whole Southern Hemisphere and north to latitude 80° N. South of latitude 80° S it never sets. It stands highest at midnight in October, 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 HIP 4845, the Sun would look like a star of magnitude 6.45, in the direction where our sky has the constellation Virgo. It would be visible to the naked eye.
Planets
- HIP 4845 b 34.2-day orbit · 3.89 R⊕
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.