Star · K0III
BD+42 2315
BD+42 2315 is a giant star of spectral type K0III in the constellation Canes Venatici, 1,982 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Constellation | Canes Venatici |
|---|---|
| Distance | 1,982 light-years (607.8 pc) |
| Apparent magnitude | magnitude 9.85 |
| Absolute magnitude | magnitude 0.93 |
| Spectral type | K0III |
| Surface temperature | 4,500 K |
| Luminosity | 97.7 L☉ |
| Radius | 17.9 R☉ |
| Mass | 1.38 M☉ |
| Metallicity [Fe/H] | -0.20 |
| Right ascension (J2000) | 12h 30m 21.3s |
| Declination (J2000) | +41° 16′ 11″ |
| Space velocity (relative to the Sun) | 68.4 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 9.85. Visible from the whole Northern Hemisphere and south to latitude 49° S. North of latitude 49° N it never sets. It stands highest at midnight in March, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 44. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 35 million years.
The Sun seen from there
From a planet around BD+42 2315, the Sun would look like a star of magnitude 13.75, in the direction where our sky has the constellation Phoenix. It would be invisible to the naked eye.
Planets
- BD+42 2315 b 123-day orbit · 14.2 R⊕
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.