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       SH2-140
         Open Cluster in Cepheus
      RA:22h 18m 01s  Dec: +63° 17' 06"  Distance - ~2700ly  Size- 500ly

Click on image for larger size
Click here for annotation

Location & Date
Backyard, Abbott Observatory- Long Island, NY,  September/October 2022
Telescope
TMB130SS F/7 APO, Moonlite focuser, Losmandy G11 Gemini
Image scale 1.54 arcsec/pixel
Camera
SBIG ST-10XME
Baader  Ha G B  filters
CCD temp -15°C
Exposures
Ha-15 x 10m  Green-15x5m  Blue-15x5m  Bin 1x1
Planning & Acquisition
Image planning - Sequence Generator Pro
Image acquisition - Sequence Generator Pro w/ PHD2 (guiding)
Processing
CCDStack - calibration, debloom, align, normalize, combine, deconvolution
Adobe Photoshop -  Color Image composition, Noise reduction, JPEG conversion
RC-Astro Star XTerminator, Noise Xterminator

This is an Ha (red)+G+B image

 
  Located within LDN 1204 dark nebula is SH2-140 (LBN 505) emission nebula in the constellation Cepheus. The double BOV star designation HD 211880 is ionizing the top of molecular cloud LDN 1204 creating the visible Ha region of SH2-140 . HD 211880 is a member of the young open star cluster Pismis-Moreno 1 (see annotated version)








Initial stretch of 150 minute total exposure in Hydrogen Alpha (Ha)
Initial stretch of 75 minute total exposure in green
Initial stretch of 75 minute total exposure in blue