File:"Finger_of_God"_Bok_globule_in_the_Carina_Nebula.jpg · Wikimedia Commons · See Wikimedia Commons
Bok globule
Sign in to saveisolated, small, and opaque nebula
Key facts
- Type
- Isolated Dark nebulae
- Found
- HII regions
- Mass range
- 2 M ☉ -50 M ☉
- Chemical composition
- Molecular hydrogen , carbon oxides , helium , and silicate dust
- Size range
- ~1ly
- Discovered
- Bart Bok , 1940s
via Wikipedia infobox
Wikidata facts
- Subclass of
- dark nebula
- Named after
- Bart Bok
- Image
- Bok globules in IC2944.jpg
Show 2 more facts
- Commons category
- Bok globules
- discoverer or inventor
- Bart Bok
Sources (1)
via Wikidata · CC0
~5 min read
Encyclopedic overview
In astronomy, Bok globules are isolated and relatively small dark nebulae containing dense cosmic dust and gas from which star formation may take place. Bok globules are found within H II regions, and typically have a mass of about two to 50 solar masses contained within a region about a light year or so across (about 4.5×10 m). They contain molecular hydrogen (H2), carbon oxides and helium, and around 1% (by mass) silicate dust. Bok globules most commonly result in the formation of double- or multiple-star systems.
History
Excerpted from Wikipedia’s “Bok globule” article, available under the CC BY-SA 4.0 licence.