2MASS J01225093-2439505 b
2MASS J01225093-2439505 b is a exoplanet orbiting the M3.5 V star 2MASS J01225093-2439505 in the constellation Cetus. It lies about 110 light-years from Earth and was discovered in 2013 using the imaging method.
Is 2MASS J01225093-2439505 b in the Habitable Zone?
2MASS J01225093-2439505 b orbits beyond the outer edge of the habitable zone of 2MASS J01225093-2439505. At that distance, any surface water would almost certainly be frozen.
Habitable zone of 2MASS J01225093-2439505: 0.113–0.292 AU (conservative: 0.143–0.277 AU), per Kopparapu et al. (2014). Earth orbits the Sun at 1 AU.
See the full interactive habitable-zone view in the Exoplanet Explorer app ›
Orbit and Year Length
2MASS J01225093-2439505 b orbits at an average distance of 52.000 AU.
How Was 2MASS J01225093-2439505 b Discovered?
2MASS J01225093-2439505 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 2MASS J01225093-2439505 b?
2MASS J01225093-2439505 b is 110.3 light-years (33.8 parsecs) from Earth. Light arriving here tonight left the planet around the year 1916. A probe traveling at the speed of Voyager 1 — about 17 km/s, the fastest outbound spacecraft ever launched — would need roughly 1,941,280 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. 2MASS J01225093-2439505 b scores 0.08, ranking #4,704 of 5,568 planets with a known ESI. For reference, Mars scores about 0.70.
The Host Star: 2MASS J01225093-2439505
2MASS J01225093-2439505
- Spectral type
- M3.5 V
- Surface temperature
- 3,530 K (Sun: 5,772 K)
- Mass
- 0.40 M☉
- Luminosity
- 0.0191 L☉
- Age
- 0.1 billion years (Sun: 4.6)
Planetary System
2MASS J01225093-2439505 b is the only planet known to orbit 2MASS J01225093-2439505 so far.
2MASS J01225093-2439505 b — Complete Data
| Mass | 7,786.50 Earth masses (24.500 Jupiter masses) |
|---|---|
| Orbital distance | 52.000 AU |
| Earth Similarity Index | 0.08 |
| Distance from Earth | 110.3 light-years (33.8 parsecs) |
| Constellation | Cetus |
| 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 2MASS J01225093-2439505 b
Is 2MASS J01225093-2439505 b habitable?
No — 2MASS J01225093-2439505 b orbits outside the habitable zone of 2MASS J01225093-2439505 and is likely too cold for liquid water on its surface.
How far away is 2MASS J01225093-2439505 b?
2MASS J01225093-2439505 b is about 110 light-years from Earth in the constellation Cetus. A spacecraft traveling as fast as Voyager 1 (about 17 km/s) would need roughly 1,941,280 years to get there.
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