IC1396 in Cepheus
CLICK ON IMAGE FOR FULL SIZE VIEW (2400x1783)
Scope: Zenithstar 66mm APO Refractor at f/4.5, Location: Laguna Mountains, CA, 4 September 2010 Camera: ST8300M
Exposure: 13 x 9 min H-Alpha Exposure (1x1), 8 x 3 min RGB exposures (2x2).
Processing: Images were captured with CCDSoft. Aligned/stacked and dark subtracted in Astroart ; Sigma Combine method was used for stacking subs. Central gradient was removed in Astroart. All channels were scaled and equalized in Astroart. Channels were co-registered in Astroart. G2V factors were applied to color channels in Astroart. The 9 minute H-Alpha exposures were used for the main luminance construction with level adjustments and curves to bring out object features. Some Levels and Curves were selectively applied excluding the core area. LRGB combine was done in Photoshop. Sharpening was done on the luminance channel. Final touches and color balance tweaks in Photoshop. Final Image size is approximately 3328x2472 (resized to 2400x1783).
North is to the right in this image. The ridged feature in the lower center on the nebula is sometimes called the "Elephant Trunk" nebula. The large star in the upper right is Mu Cephei - also known as the Garnet Star. This image replaces an earlier image which can be seen in the Archives here. Horizontal FOV is 214 arc minutes.
Image center is approximately - Equatorial 2000: RA: 21h 38m 57s Dec: +57°29'20"
All images and content remain the property of Jim Thommes - copyright 2003 - 2012
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