HD 219134 c
Exoplanet | List of exoplanets | |
---|---|---|
Parent star | ||
Star | HR 8832 | |
Constellation | Cassiopeia | |
Right ascension | (α) | 23h 13m 16.97632s |
Declination | (δ) | +57° 10′ 06.0823″ |
Apparent magnitude | (mV) | 5.574 |
Distance | 21.25 ly (6.52 pc) | |
Spectral type | K3 V | |
Temperature | (T) | 4710 K |
Observed separation | ||
Orbital elements | ||
Semi-major axis | (a) | 0.0382 ± 0.0003[1] AU |
Eccentricity | (e) | 0.064 ± 0.001[1] |
Orbital period | (P) | 6.765 ± 0.0054[1] d |
Inclination | (i) | 85.058 ± 0.08[1]° |
Physical characteristics | ||
Mass | (m) | 2.67 ± 0.59[1] M⊕ |
Discovery information | ||
Discovery date | 2015 July 30 | |
Discoverer(s) | ||
Discovery method | radial velocity method (HARPS-N); | |
Discovery site | HARPS-N of the Telescopio Nazionale Galileo | |
Discovery status | Published |
HD 219134 c, also known as HR 8832 c, is an exoplanet orbiting around the K-type star HR 8832 in the constellation of Cassiopeia. It has a low mass of 2.67 Earth Masses, which indicates that the exoplanet is likely a rocky planet. Due to its short orbital period - just under 7 days - it is too hot to have liquid water on its surface. The exoplanet was initially detected by the instrument HARPS-N of the Italian Telescopio Nazionale Galileo via the radial velocity method. Unlike HD 219134 b it has not been observed by the Spitzer telescope.
![](../I/m/PIA19832-StarHD219134-Location-20150730.jpg)
References
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