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NGC6559 / IC4685

Classification: Emission and Reflection / IC4685 / Sh2-29 / Sh2-31-32 / NGC6559
Constellation: Sagittarius (SGR)
Object Location: Ra 18h 10m 11s Dec -23° 58’52” (current)
Size & Distance: 40 x 40 Apx 5000 Light-years.

Date & Location: 05-29-2006 Little Blair Valley, CA
Exposure: Ha= 3 @ 20min (bin 1x1)
Optics: Takahashi FSQ106N f5 530mm.
Mount: Astro-Physics 900 GTO / ATS 10/36 pier
Camera: Starlight-Xpress SXV-H9 w/ SXV guider head and 2045.
Filters: Astrodon 6nm Ha,
Software: MaxImDL 4.1 Photoshop CS

Notes: Sky conditions: Average seeing, windy, Temp 41°
Image Field of view is 43 x 57 arc-min.