Poltergeist (exoplanet)
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Exoplanet Poltergeist |
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| Comparison of Poltergeist with Earth and Neptune | |
| Constellation | Virgin |
| Position equinox : J2000.0 |
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| Right ascension | 13h 00m 03.17075s |
| declination | + 12 ° 40 ′ 55.155 ″ |
| Orbit data | |
| Central star | Lich |
| Major semi-axis | 0.36 AU |
| eccentricity | 0.019 |
| Period of circulation | 66.54 d |
| Further data | |
| Dimensions | 0.013 M J |
| distance | 710.0 ± 40.0 pc |
| method | Pulsar timing method |
| Orbit inclination | 53 ± 4 |
| history | |
| discovery | Aleksander Wolszczan et al. |
| Date of discovery | 1992 |
| Catalog names | |
| PSR 1257 + 12 c | |
Poltergeist ( PSR 1257 + 12 c also PSR 1257 + 12 B ) is an exoplanet that orbits the pulsar Lich every 66.54 days . Due to its low mass , it is assumed that it is a terrestrial planet . It has almost the same mass as its neighbor Phobetor .
discovery
Unlike the majority of all exoplanets, this one was discovered using the pulsar timing method . The exoplanet was created by Aleksander Wolszczan et al. discovered in 1992.
Circulation and mass
The planet orbits the pulsar at a distance of about 0.36 AU with an eccentricity of 1.86 percent and has a mass of about 4.132 Earth masses or 0.01353 Jupiter masses. Its radius is estimated to be 9,400 kilometers.
Web links
Commons : PSR B1257 + 12 B - Collection of pictures, videos and audio files
