Proplyd 133-353
| File:Proplyd 133-353.jpg Color composite image of Proplyd 133-353 by the Hubble Space Telescope (HST). | |
| Discovery | |
|---|---|
| Discovery date | 2016 |
| Imaging | |
| Physical characteristics | |
Mean diameter | 7.82 ± 0.81 DJ |
| Circumference | 24.56 ± 2.54 DJ |
| Mass | ≤ 13.0 MJ, 2-28 MJ |
| Temperature | 2,450K |
Spectral type | M9.5 |
Proplyd 133-353 is a planetary-mass object located 388 parsecs from Earth in the Orion Nebula.[1] It is possibly the largest known exoplanet, likely being a sub-brown dwarf or a rogue planet. Proplyd 133-353 is likely not able to fuse deuterium disqualifying it from being a brown dwarf, the mass limit for deuterium fusion is slightly over 13MJ[2] and Proplyd 133-353's mass is likely under this threshold. Proplyd 133-353 likely has a photoevaporating protoplanetary disk. Proplyd 133-353 is also a very young exoplanet with an age of just 500,000 years or younger making it one of the youngest exoplanets known.[3]
It is located in the Trapezium Cluster, 1,260 light years away.[3] Southwest and nearby is a massive star named θ1 Orionis C.
See also
References
- ↑ Martin, Pierre-Yves (2016). "Planet Proplyd 133-353". exoplanet.eu. Retrieved 2025-04-09.
- ↑ Spiegel, David S.; Burrows, Adam; Milsom, John A. (January 2011). "The Deuterium-Burning Mass Limit for Brown Dwarfs and Giant Planets". The Astrophysical Journal. 727 (1): 57. arXiv:1008.5150. Bibcode:2011ApJ...727...57S. doi:10.1088/0004-637X/727/1/57. ISSN 0004-637X.
- ↑ 3.0 3.1 Fang, Min; Kim, Jinyoung Serena; Pascucci, Ilaria; Apai, Dániel; Manara, Carlo Felice (2016-12-12). "A Candidate Planetary-Mass Object with a Photoevaporating Disk in Orion". The Astrophysical Journal Letters. 833 (2): L16. arXiv:1611.09761. Bibcode:2016ApJ...833L..16F. doi:10.3847/2041-8213/833/2/l16. ISSN 2041-8205.
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