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I agreeImaging telescope or lens:Explore Scientific PN-208/812 Carbon Fiber OTA
Imaging camera:ZWO ASI 1600MM Cool
Mount:SkyWatcher AZ-EQ5
Guiding telescope or lens:ZWO Off Axis Guider
Guiding camera:Starlight Xpress Lodestar Autoguider X2
Filters:ZWO OIII, ZWO H-alpha 7nm, ZWO Green, ZWO Blue, ZWO Red
Accessory:Explore Scientific HR Coma Corrector
Resolution: 4000x2900
Dates:Aug. 26, 2018, Aug. 29, 2018, Sept. 4, 2018, Sept. 5, 2018, Sept. 16, 2018, Sept. 19, 2018, Sept. 29, 2018, Sept. 30, 2018, Oct. 1, 2018, Oct. 2, 2018, Oct. 4, 2018, Oct. 8, 2018, Oct. 14, 2018, Oct. 18, 2018, Oct. 19, 2018, Oct. 22, 2018
Frames:
ZWO Blue: 93x60" (gain: 139.00)
ZWO Green: 80x60" (gain: 139.00)
ZWO H-alpha 7nm: 267x400" (gain: 139.00)
ZWO OIII: 275x400" (gain: 139.00)
ZWO Red: 64x60" (gain: 139.00)
Integration: 64.2 hours
Avg. Moon age: 16.86 days
Avg. Moon phase: 57.58%
Bortle Dark-Sky Scale: 8.00
Astrometry.net job: 2327856
RA center: 29.130 degrees
DEC center: 65.474 degrees
Pixel scale: 0.457 arcsec/pixel
Orientation: 89.531 degrees
Field radius: 0.313 degrees
Locations: Home Roof (Bortle 8 / Est. Sky Quality: 18.53), Springfield, PA, United States
Data source: Backyard
Ferrero 6 / Fe 6 (PN G129.6+03.4 / J015624.9+652830) is the final image in my ‘trio of faint targets’ this fall. Ferrero 6 is a ridiculously faint planetary nebula in Cassiopeia discovered by amateur astronomer Laurent Ferrero in 2013 using plates of the Digitized Sky Survey. To date, I’ve only been able to find four other versions of this target (all of which were shot with CCDs): Jim Shuder’s version using a C9.25 EdgeHD, Frank Slotosch’s version using an 8” Newtonian, Sascha Schueller’s version using a 16” f/4 Newtonian and 0.73x reducer and Mark Hanson’s utterly epic version in November of 2017 using a 24” Planewave. If there’s another version you happen to be aware of that I haven’t found, let me know so I can add it to this list.
Edit: Just wanted to add Pat Rogers' image to this list.
While the OIII signal in PuWe1 is undoubtedly weaker than either the Ha or OIII signal in Fe6, the Ha signal in PuWe1 seems to be a good deal stronger, making Fe6 (probably) the faintest target I’ve ever done. I doubt more integration time would help me pull out anything more on this. A 30-hour stack looked like a single sub of other planetary nebulae I’ve worked on.
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