Star · K4 III
NGC 2682 Sand 978
NGC 2682 Sand 978 is a supergiant star of spectral type K4 III in the constellation Cancer, 2,784 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Constellation | Cancer |
|---|---|
| Distance | 2,784 light-years (853.5 pc) |
| Apparent magnitude | magnitude 9.97 |
| Absolute magnitude | magnitude 0.31 |
| Spectral type | K4 III |
| Surface temperature | 4,200 K |
| Luminosity | 143 L☉ |
| Radius | 21 R☉ |
| Mass | 1.37 M☉ |
| Metallicity [Fe/H] | -0.02 |
| Right ascension (J2000) | 8h 51m 17.5s |
| Declination (J2000) | +11° 45′ 23″ |
| Space velocity (relative to the Sun) | 45.5 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 9.97. Visible from the whole Northern Hemisphere and south to latitude 78° S. North of latitude 78° N it never sets. It stands highest at midnight in January, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around 759 BC. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 49 million years.
The Sun seen from there
From a planet around NGC 2682 Sand 978, the Sun would look like a star of magnitude 14.49, in the direction where our sky has the constellation Aquarius. It would be invisible to the naked eye.
Planets
- NGC 2682 Sand 978 b 511-day orbit · 13.3 R⊕
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.