Back Grup mòbil Beta Pictoris Catalan Asociación estelar de Beta Pictoris Spanish Groupe mouvant de Beta Pictoris French Associazione di Beta Pictoris Italian 화가자리 베타 운동성단 Korean Beta-Pictoris-Beweegungsgrupp LB Движущаяся группа звёзд Беты Живописца Russian Рухома група зір Бети Живописця Ukrainian 繪架座β移動星群 Chinese
| β Pic Moving Group | |
|---|---|
| Observation data | |
| Distance | 115 ly (35 pc) |
| Physical characteristics | |
| Estimated age | 20–26 Ma[1] |
| Associations | |
The Beta Pictoris Moving Group is a young moving group of stars located relatively near Earth. A moving group, in astronomy, is a group of stars that share a common motion through space as well as a common origin. This moving group is named for Beta Pictoris.
The Beta Pictoris Moving Group is an important object for astronomical study as it is the closest youthful group of stars to the Earth.[2] The star Beta Pictoris is known to have a large disk of gas and dust, possibly a protoplanetary disk. There is also evidence of a young gas giant planet around the star.[3][4] A free-floating planet has also been found in the moving group, PSO J318.5-22.[5] It has recently been estimated, as of 17 October 2023[update], that more than a third of the single Sun-like stars in the group have planets with more than four times the mass of Jupiter, and virtually all of the single Sun-like stars, 99%, possess at least one gas giant in orbit around them.[6] The age and distance of the group makes it a candidate for directly imaging extrasolar planets.
- ^ Cite error: The named reference
Mamajek2014was invoked but never defined (see the help page). - ^ Zuckerman, B.; et al. (2001). "The β Pictoris Moving Group". The Astrophysical Journal. 562 (1): L87–L90. Bibcode:2001ApJ...562L..87Z. doi:10.1086/337968.
- ^ "Extrasolar Visions - Beta Pictoris b". Archived from the original on 2010-11-17. Retrieved 2010-03-26.
- ^ "Beta Pictoris planet finally imaged?" (Press release). ESO. 2008-11-21. Archived from the original on 2009-02-08. Retrieved 2008-11-22.
- ^ "A Strange Lonely Planet Found Without a Star". Science Daily. 2013-10-09.
- ^ Gratton, Raffaele; Mesa, Dino; Bonavita, Mariangela; et al. (2023-10-17). "Jupiter-like planets might be common in a low-density environment". Nature Communications. 14 (1). Springer Science and Business Media LLC. arXiv:2310.11190. doi:10.1038/s41467-023-41665-0. ISSN 2041-1723.