NGC1973/75/77/81 in Orion

NGC1973/75 is the main area of nebulosity. NGC1977 is the cluster in the nebula. NGC1981 is the cluster above the nebula.

Photo Details:

• Instrument: AstroPhysics 155EDF Refractor with Telecompressor (924mm -f/5.96)
• Filters: None
• Exposure: 27 x 10 minutes @ ISO 800
• Camera: Canon 20Da with Hutech Type I Filter
• Software: Images Plus, Photoshop CS2
• Location: Mountain Ranch, California, El. 2500ft (120d 30' 02" W & 38d 14' 01" N)
• Date: October 29, 2006
• Comments: Seeing was excellent, transparency high, and temperature stable. One of the best nights of the year.