Celestial hemisphere:  Northern  ·  Constellation: Cassiopeia (Cas)  ·  Contains:  2 Cas  ·  4 Cas  ·  Bubble nebula  ·  M 52  ·  NGC 7510  ·  NGC 7538  ·  NGC 7635  ·  NGC 7654  ·  Sh2-157  ·  Sh2-158  ·  Sh2-159  ·  Sh2-161  ·  Sh2-162  ·  The star 2Cas  ·  The star 4Cas
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NGC 7635 & Friends - Two Plate Mosaic in HSO, Sigga
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NGC 7635 & Friends - Two Plate Mosaic in HSO

Getting plate-solving status, please wait...
NGC 7635 & Friends - Two Plate Mosaic in HSO, Sigga
Powered byPixInsight

NGC 7635 & Friends - Two Plate Mosaic in HSO

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Description

NGC 7635, also known as the Bubble Nebula, Sharpless 162, or Caldwell 11, is an H II region emission nebula in the constellation Cassiopeia. It lies close to the direction of the open cluster Messier 52. The "bubble" is created by the stellar wind from a massive hot, 8.7 magnitude young central star, SAO 20575 (BD+60°2522). 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. It was discovered in 1787 by William Herschel. The star BD+60°2522 is thought to have a mass of about 44M .

Is 3 x 300 seconds in each Ha, S, and O. I come across old copy of Photoshop CS2 so use for first time on this rather than GIMP. This mosaic of two frames.

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NGC 7635 & Friends - Two Plate Mosaic in HSO, Sigga