IC4604 in Ophiuchus

Photo Details:

• Instrument: ASA N10 Astrograph (965mm-f/3.8)
• Filters: None
• Exposure: 111 x 5 minutes @ ISO 800
• Camera: Canon 20Da with Hutech Type I Filter
• Software: Images Plus, Registar, Photoshop CS2, Noise Ninja
• Location: Mountain Ranch, California, El. 2500ft (120d 30' 02" W & 38d 14' 01" N)
• Date: May 2007
• Comments: Transparency was not very good for most of the sub exposures.