Star · K4V
GJ 3298
GJ 3298 is a main-sequence star of spectral type K4V in the constellation Caelum, 81.6 light-years from the Sun.
| Other names | HIP 21223 |
|---|---|
| Constellation | Caelum |
| Distance | 81.6 light-years (25.0 pc) |
| Apparent magnitude | magnitude 8.74 |
| Absolute magnitude | magnitude 6.75 |
| Spectral type | K4V |
| Surface temperature | 4,770 K |
| Luminosity | 0.264 L☉ |
| Radius | 0.753 R☉ |
| Mass | 0.717 M☉ (estimated) |
| Right ascension (J2000) | 4h 33m 09.3s |
| Declination (J2000) | −36° 56′ 46″ |
| Space velocity (relative to the Sun) | 5.7 km/s |
In the sky
Too faint for the naked eye (magnitude 8.74); binoculars will find it. Visible from the whole Southern Hemisphere and north to latitude 53° N. South of latitude 53° S it never sets. It stands highest at midnight in November, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1944. 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 3298, the Sun would look like a star of magnitude 6.82, in the direction where our sky has the constellation Hercules. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- GJ 3319 6.93 light-years
- GJ 3300 10.3 light-years
- Gl 155.3 11.5 light-years
- 2MASS J03582255-4116060 11.7 light-years
- 2MASSI J0451009-340214 12.2 light-years
- β Cae 12.9 light-years
- GJ 1071 12.9 light-years
- HIP 20302 14.6 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.