Skies By Africa

Images of the Heavens By Eric Africa

Sharpless 224 and Sharpless 223 

Sharpless 224 and 223
According to, both Sharpless 224 (the very interestingly-shaped object on the left) and Sharpless 223 (to the lower right) are both supernova remnants, so this image covers the debris of two ancient colossal super stars that literally went out with a bang thousands of years ago. Both objects lie in the constellation Auriga, and both are very faint nebulae that required a bit of exposure to bring out the details and colors depicted here. I was pleasantly surprised to pick up both SII and OIII data, so I'm representing the image in many of the popular ways these targets as depicted, as well as an H-alpha/OIII blend that brings out the difference in structure of the ionized gases represented. I am not sure about the extent of the OIII data outside of the outer extensions around Sharpless 224. There was a glow in my OIII data, which I decided to preserve in the Ha/OIII representation in case it's real data.

Constellation: Auriga
When Visible: November - April
Distance: Unknown (can't find on the web currently)
Date: Imaged over five nights October - November, 2012
Location: Rancho Hidalgo, Animas, NM
Exposure Details:
H-alpha: 18 x 30 Minutes Binned 1x1
SII: 13 x 30 Minutes Binned 1x1
OIII: 16 x 30 Minutes Binned 1x1
Red: 12 x 10 Minutes Binned 1x1
Green: 12 x 10 Minutes Binned 1x1
Blue: 12 x 10 Minutes Binned 1x1

29 Hours and 30 Minutes Total Exposure Time
Equipment Used:  Takahashi FSQ-106N on an Astro-Physics AP1200GTO mount. SBIG STL-6303E camera with FW8-STL filter wheel and Astrodon LRGB and narrowband filters. Robofocus focuser.
Acquisition Software : MaximDL 5, TheSky6, CCDAutopilot 5, FocusMax
Processing Software: MaximDL, Photoshop CS/CS5, Croman GradientXterminator, Carboni Actions, IrFanView, Noise Ninja