XO-2Nb
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Exoplanet XO-2Nb |
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| Size comparison with Jupiter | |
| Constellation | lynx |
| Position equinox : J2000.0 |
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| Right ascension | 07h 48m 06.468s |
| declination | + 50 ° 13 ′ 32.96 ″ |
| Orbit data | |
| Central star | XO-2N |
| Major semi-axis | 0.0369 AU |
| eccentricity | 0.045 ± 0.024 |
| Period of circulation | 2.61584 |
| Further data | |
| radius | 0.973 ± 0.03 |
| Dimensions | 0.62 ± 0.02 |
| distance | 149 ± 4 pc |
| method | Transit method |
| Orbit inclination | 88.7 ± 1.3 deg |
| history | |
| discovery | C. Burke |
| Date of discovery | 2007 |
XO-2Nb is an exoplanet that orbits the yellow dwarf XO-2N every 2.616 days . Due to its high mass , it is assumed that it is a gas planet .
discovery
The planet was discovered by Christopher M. Johns-Krull et al. discovered in 2007 using the transit method .
Circulation and mass
The planet orbits its star at a distance of approx. 0.0369 astronomical units and has a mass of approx. 180 earth masses or 0.6 Jupiter masses.
Web links
Commons : XO-2b - collection of images, videos and audio files
Individual evidence
- ↑ SIMBAD
- ↑ a b c d e f g h Exoplanet.eu
- ↑ Christopher M. Johns-Krull et al: XO-2b: Transiting Hot Jupiter in a Metal-rich Common Proper Motion Binary . In: The Astrophysical Journal . 671, No. 2, 2007, pp. 2115-2128. arxiv : 0705.0003 . bibcode : 2007ApJ ... 671.2115B . doi : 10.1086 / 523087 .