Globular Star Cluster M22 in Sagittarius

Photo Details:

• Instrument: ASA N10 Astrograph (965mm-f/3.8)
• Filters: None
• Exposure: 31 x 3 minutes @ ISO 400
• 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: May 17, 2007
• Comments: No noise reduction was applied to this image.