ROXs 12 b
ROXs 12 b is a exoplanet orbiting the M0 star ROXs 12 in the constellation Scorpius. It lies about 446 light-years from Earth and was discovered in 2013 using the imaging method.
Is ROXs 12 b in the Habitable Zone?
The position of ROXs 12 b relative to the habitable zone of ROXs 12 cannot be precisely determined from the available orbital data.
Orbit and Year Length
ROXs 12 b orbits at an average distance of 210.000 AU.
How Was ROXs 12 b Discovered?
ROXs 12 b was discovered in 2013 using the imaging method, with observations from W. M. Keck Observatory.
Direct imaging captures actual pictures of a planet by blocking out the overwhelming glare of its host star. It works best for young, hot, massive planets on wide orbits.
How Far Away Is ROXs 12 b?
ROXs 12 b is 445.7 light-years (136.7 parsecs) from Earth. Light arriving here tonight left the planet around the year 1581. A probe traveling at the speed of Voyager 1 — about 17 km/s, the fastest outbound spacecraft ever launched — would need roughly 7,844,320 years to make the journey.
Earth Similarity Index
The Earth Similarity Index (ESI) scores how physically similar a planet is to Earth, from 0 to 1, based on radius, density, escape velocity and surface temperature. ROXs 12 b scores 0.07, ranking #4,871 of 5,568 planets with a known ESI. For reference, Mars scores about 0.70.
The Host Star: ROXs 12
ROXs 12 b belongs to a system of 2 stars; it orbits ROXs 12.
ROXs 12
- Spectral type
- M0
- Surface temperature
- 3,850 K (Sun: 5,772 K)
- Mass
- 0.87 M☉
- Age
- 0.0 billion years (Sun: 4.6)
Planetary System
ROXs 12 b is the only planet known to orbit ROXs 12 so far.
ROXs 12 b — Complete Data
| Mass | 5,085.00 Earth masses (16.000 Jupiter masses) |
|---|---|
| Orbital distance | 210.000 AU |
| Earth Similarity Index | 0.07 |
| Distance from Earth | 445.7 light-years (136.7 parsecs) |
| Constellation | Scorpius |
| Discovery method | Imaging |
| Discovery facility | W. M. Keck Observatory |
| Discovery year | 2013 |
Data: NASA Exoplanet Archive, last updated 2014-05-14. Earth Similarity Index: PHL @ UPR Arecibo.
Frequently Asked Questions About ROXs 12 b
Is ROXs 12 b habitable?
ROXs 12 b is not known to orbit within the habitable zone of ROXs 12.
How far away is ROXs 12 b?
ROXs 12 b is about 446 light-years from Earth in the constellation Scorpius. A spacecraft traveling as fast as Voyager 1 (about 17 km/s) would need roughly 7,844,320 years to get there.
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