Phobetor (exoplanet)
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Exoplanet Phobetor |
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| Comparison of Phobetor 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 | 0.46 AU |
| eccentricity | 0.025 |
| Period of circulation | 98.21 d |
| Further data | |
| Dimensions | 0.012 M J |
| distance | 710.0 ± 40.0 pc |
| method | Pulsar timing method |
| Orbit inclination | 47 ± 3 |
| history | |
| discovery | Aleksander Wolszczan et al. |
| Date of discovery | 1992 |
Phobetor ( PSR 1257 + 12 d also PSR 1257 + 12 C ) is an exoplanet that orbits the pulsar Lich every 98.21 days . Due to its low mass , it is assumed that it is a terrestrial planet . It has almost the same mass as its neighbor Poltergeist .
discovery
Unlike the majority of all exoplanets, this one was discovered using the pulsar timing method . The planet was created by Aleksander Wolszczan et al. discovered in 1992.
Circulation and mass
The planet orbits the pulsar at a distance of about 0.46 AU with an eccentricity of 2.52 percent and has a mass of about 3.814 earth masses or 0.01227 masses of Jupiter. Its radius is estimated to be 9,200 kilometers.
Origin of name
Like all exoplanets, Phobetor was originally designated with the star's official name and a lowercase letter, according to the order in which it was discovered. After a publicly advertised competition by the International Astronomical Union (IAU), it was given an official name on December 15, 2015 after the Greek deity Phobetor .
