2MASS J02192210-3925225 b
2MASS J02192210-3925225 b is a cold gas giant orbiting the M6 star 2MASS J02192210-3925225 in the constellation Phoenix. It was discovered in 2015 using the imaging method.
How Big Is 2MASS J02192210-3925225 b?
2MASS J02192210-3925225 b has a radius of 16.14 times that of Earth, or 1.44 times the radius of Jupiter. Its mass is 4,418 times that of Earth.
Is 2MASS J02192210-3925225 b in the Habitable Zone?
2MASS J02192210-3925225 b orbits beyond the outer edge of the habitable zone of 2MASS J02192210-3925225. At that distance, any surface water would almost certainly be frozen.
Habitable zone of 2MASS J02192210-3925225: 0.063–0.167 AU (conservative: 0.080–0.158 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 J02192210-3925225 b orbits at an average distance of 156.000 AU.
How Was 2MASS J02192210-3925225 b Discovered?
2MASS J02192210-3925225 b was discovered in 2015 using the imaging method, with observations from Cerro Tololo Inter-American 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.
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 J02192210-3925225 b scores 0.06, ranking #5,212 of 5,568 planets with a known ESI. For reference, Mars scores about 0.70.
The Host Star: 2MASS J02192210-3925225
2MASS J02192210-3925225
- Spectral type
- M6
- Surface temperature
- 3,064 K (Sun: 5,772 K)
- Mass
- 0.11 M☉
- Radius
- 0.28 R☉
- Luminosity
- 0.0059 L☉
- Age
- 0.0 billion years (Sun: 4.6)
Planetary System
2MASS J02192210-3925225 b is the only planet known to orbit 2MASS J02192210-3925225 so far.
2MASS J02192210-3925225 b — Complete Data
| Radius | 16.141 Earth radii (1.440 Jupiter radii) |
|---|---|
| Mass | 4,417.84 Earth masses (13.900 Jupiter masses) |
| Orbital distance | 156.000 AU |
| Earth Similarity Index | 0.06 |
| Constellation | Phoenix |
| Discovery method | Imaging |
| Discovery facility | Cerro Tololo Inter-American Observatory |
| Discovery year | 2015 |
Data: NASA Exoplanet Archive, last updated 2015-05-14. Earth Similarity Index: PHL @ UPR Arecibo.
Frequently Asked Questions About 2MASS J02192210-3925225 b
Is 2MASS J02192210-3925225 b habitable?
No — 2MASS J02192210-3925225 b orbits outside the habitable zone of 2MASS J02192210-3925225 and is likely too cold for liquid water on its surface.
How big is 2MASS J02192210-3925225 b compared to Earth?
2MASS J02192210-3925225 b has 16.14 times the radius of Earth and about 4,418 times its mass.
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