Nebulae - Glittering Lights - Marco Lorenzi
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Cometary Globule CG12 (NGC 5367)

Cometary Globule CG12 (NGC 5367)

Cometary Globule 12 is a high latitude low mass star forming region associated with the young cluster and reflection nebula NGC 5367. While the cluster and associated nebula were discovered by John Herschel in 1834, the cometary globule was discovered only in 1976 on an ESO/SRC Sky Survey plate taken with the UK Schmidt telescope. It is estimated to be about 600 pc away, toward the constellation of Centaurus. Cometary globules are known stellar bithplaces that show a head–tail morphology similar to comets. Their heads are dusty, compact and bright-rimmed. A faintly luminous tail extending from the head generally points away from a nearby bright early-type star. CG12 is not only unusual because its isolated location far from the galactic plane, but Chandra also discovered more than 50 new young stars in CG12 with their age and stellar distributions inconsistent with the simple radiation driven implosion model that is believed to be a major triggering process of star formation in many cometary clouds.

Apo TEC140 (140/f7.2) - FLI Proline 16803 - L (300m) R (130m) G (130m) B (130m) - Warrumbungle Observatory, Coonabarabran, NSW, Australia

NGC5367LRGBCG12