- Exposure: (Ha+R & L) (Ha+R)GB
- L & Ha binned 1x1, RGB binned 2x2
- Ha 17x900s,
L 24x300s, R 7x300s, G 18x130s, B 18x220s
- Telescope: Stellarvue SV80S @ f/4.77
- Mount: MI-250 GoTo
- Camera: SBIG ST-2000XM CCD, SBIG CFW-8
- Location: My backyard in Goleta, CA
- Date/Time:
- LRGB: November 17-18, 2004, 21:01-01:49 PST
- Ha: November 22, 2004, 21:01-01:49 PST
- Processing: Taken in CCDSoft v5 using
CCDCommander. Reduced in
CCDSoft. Aligned with RegiStar. Combined
sub-exposures
with Ray Gralak's Sigma Clip. DDP to with
custom
software. Curves, levels, saturation, unsharp mask, selective
blur in Photoshop.
- Notes: I initially did a straight LRGB, but didn't
like the detail visible. Also had a problem originally that
stopped the acquisition of the red frames half way through. So, I
added in the Ha data. The Ha combine is a bit strange. I
started with the LRGB image I originally processed. Next I
blended the Ha and red data (from the LRGB) 80%/20% to make the a new
red channel in Photoshop (per Rob Gendler's procedure),.
Then I took this new Ha+R frame and used it as luminance for only the
red channel at 75% blending. This resulted in great nebular
detail without washing out the blue reflection component around AE
Aurigae.
- "Second light" image with my new MI-250
mount.
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- Name: IC 405, Caldwell C31, The
Flaming Star Nebula
- Type: Emission & Reflection
nebula
- Constellation: Auriga
- Distance: 1600 light years
- The Flaming Star Nebula is a very large
star forming region. The red nebula is gases being energized by
the stars in the region to emit red light. AE Aurigae (the bright
star in the middle) happens to be passing through this region and is
adding its own personal touch to the region. Bright light from
the star is reflecting of the gases near by and appears as the blue
regions of the nebula.
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