M52 and The Bubble Nebula (NGC7635)
M52 & Bubble

Click on image for full size version.

Image Data: Object Information:
  • Exposure:  RGB 3x20:3x20:3x20 minutes
    • RGB binned 1x1
  • RGB Combine Ratios:  2.27:1.00:1.26
  • Telescope:  Stellarvue SV80S @ f/5.98
  • Mount:  Meade LX200 w/ super wedge
  • Camera:  SBIG ST-2000XM CCD, SBIG CFW-8
  • Location:  My backyard in Goleta, CA
  • Date/Time:  September 26/27, 2003,  21:11-01:34 PDT
  • Processing:  Taken and reduced in CCDSoft v5.  Combined sub-exposures with Ray Gralak's Sigma Clip.  Gradiants removed and color combined with custom software.  Curves/levels/saturation adjusted in Photoshop. 
  • Name: 
    • Open Cluster - M52, NGC7654
    • Nebulosity - The Bubble Nebula, NGC7635
  • Type:  Open Cluster and Emission Nebula
  • Constellation:  Cassiopeia

  • About the Bubble Nebula (From APOD on January 17, 2003):

    The Bubble nebula lies at the center of a larger complex of shocked glowing gas about 11,000 light-years distant in the fair constellation Cassiopeia. NGC 7635 really is an interstellar bubble, blown by winds from the brightest star visible within the bubble's boundary. The bubble's expansion is constrained by the surrounding material. About 10 light-years in diameter, if the Bubble nebula were centered on the Sun, the Sun's nearest stellar neighbor, Alpha Centauri, would also be enclosed.
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