• NGC 7635 and M52 in Cassiopeia
    • B72
    B72 Annotated image
  • NGC 7635, the Bubble Nebula, and M52, an open cluster in Cassiopeia.
  • The zombie star nova V1405 Cas 2021 is the brightest red star at the vertex of
  • the right angle formed by moving up from the Bubble and left of M52.
  • Hover over the picture for an annotated version
  • Date:  28 August 2021 and 3 July 2022
  • FOV:  approximately 110' × 73'; the distance between them is about 30'
  • Telescope:  Stellarvue SVX102T + SFFX-1 flattener (714mm, f/7)
  • Guiding:  ZWO ASI120MM mini mono guide camera,
  • Stellarvue F050G 50mm guide scope
  • Computer:  ASIair pro Raspberry Pi
  • Mount:  iOptron CEM40
  • Camera:  ZWO ASI071MC Pro Cooled (-10°C) Color CMOS with gain 240
  • Pixel size:  4.78 μm
  • Resolution:  1.339 arcsec/pixel
  • Filter:  Baader Light Pollution Moonglow filter with IR cut (10 frames)
  • and Optolong L-eNhance narrow dual band (32 frames)
  • Stacking:  Forty-two 240 second frames using Deep Sky Stacker
  • Total Time:  2 hours 48 minutes
  • Processing:  Pixinsight – SPCC, DBE, BlurXT, NoiseXT, GHS + Sat, Crop/Scale
  • Location:  Darling Hill Observatoryt near Vesper NY (28 August 2021)
  • and Cherry Springs State Park near Coudersport, PA (3 July 2022)