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Michael A. Stecker
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IC
5070 (Pelican) and "Skull" nebulae
The Pelican and Skull nebulae are near the "east coast" of the North American Nebula (NGC 7000) in Cygnus. file: IC5070&Skull240X39AP130f4d7p2-7122023a1a.jpg Photographic Data telescope: Astro-Physics 130 mm (5.1-inch) f/6 triplet refractor focally reduced to f/4.7 (FL= 616 mm)
mount:
ZWO AM5 harmonic/strainwave Mount Guide Settings in Asiair Plus: Calibrate Step: 5,000 ms Dec Duration: 3,000 ms RA Duration: 2,000 ms Aggression: 50% for both RA & Dec Exposure time for guiding: 1 second
Guiding hardware:
SVBony 60 mm f/4 guidescope (fl=240 mm) Guide Camera: ZWO ASI662MC color planetary camera (2.97 micron pixels) controller/computer ZWO Asiair Plus via WiFi to Samsung S7+ tablet . imaging camera: ZWO ASI533MC-Pro one-shot color astro-camera cooled to 14-degrees F with Optolong L-eNhanced nebular filter . exposures: 240 seconds X 39 (156-minutes or 2.6 hours)
processing
Stacked in Asiair Plus and cropped and post-processed in Adobe Photoshop Elements . photographic site: West Los Angeles http://mstecker.com/pages/chhouses_fp.htm (Bortle 9 light polluted sky) |
