Bubble Nebula
Template:Short description Script error: No such module "For". Template:Infobox nebula
NGC 7635, also known as the Bubble Nebula, Sharpless 162, or Caldwell 11, is an H II regionScript error: No such module "Footnotes".Script error: No such module "Check for unknown parameters". emission nebula in the constellation Cassiopeia. It lies close to the open cluster Messier 52. The "bubble" is created by the stellar wind from a massive hot, 8.7Script error: No such module "Footnotes".Script error: No such module "Check for unknown parameters". magnitude young central star, SAO 20575 (BD+60°2522).Script error: No such module "Footnotes".Script error: No such module "Check for unknown parameters". The nebula is near a giant molecular cloud which contains the expansion of the bubble nebula while itself being excited by the hot central star, causing it to glow.Script error: No such module "Footnotes".Script error: No such module "Check for unknown parameters". It was discovered in November 1787 by William Herschel.[1] The star BD+60°2522 is thought to have a mass of about Template:Solar mass.
Amateur observation
With an Script error: No such module "convert". telescope, the nebula is visible as an extremely faint and large shell around the star.Script error: No such module "Footnotes".Script error: No such module "Check for unknown parameters".Script error: No such module "Footnotes".Script error: No such module "Check for unknown parameters". The nearby 7th magnitude star on the west hinders observation, but one can view the nebula using averted vision.Script error: No such module "Footnotes".Script error: No such module "Check for unknown parameters". Using a Script error: No such module "convert". scope, one can see that the faint nebula is irregular, being elongated in the north south direction.Script error: No such module "Footnotes".Script error: No such module "Check for unknown parameters".
See also
Notes
<templatestyles src="Reflist/styles.css" />
- ↑ Cite error: Script error: No such module "Namespace detect".Script error: No such module "Namespace detect".
Script error: No such module "Check for unknown parameters".
References
<templatestyles src="Refbegin/styles.css" />
- Script error: No such module "citation/CS1".
- Script error: No such module "citation/CS1".
- Script error: No such module "citation/CS1".
External links
Script error: No such module "Side box".
Template:Catalogs Template:Sh2 objects Template:Caldwell catalogue Template:Ngc80 Template:Cassiopeia (constellation) Template:Portal bar