The region near Sadr, 37 γ Cygni, is known for nebulosity.
Notable inclusions are M29 and the Crescent Nebula.
Hover over the image for an annotated view.
Date: 14 and 24 June 2024
FOV: approximately 6° 16' × 4° 11'
Telescope: Askar FRA300 pro (300mm f/5 Petzval)
Guiding: ZWO ASI120MM mini mono guide camera,
SVBony SV165 Mini 40mm f/4 guide scope
Computer: ASIair pro Raspberry Pi
Mount: ZWO AM5 mount
Camera: ZWO ASI6200MC Pro Cooled (-10°C) Color CMOS
Pixel size: 3.76 μm
Resolution: 2.597 arcsec/pixel
Filter: 14 June: Optolong L-eNhance Dual Band, 47 frames, gain 100
24 June: Optolong L-Ultimate Dual Narrow Band, 69 frames, gain 300
Stacking: one hundred sixteen 240 second light frames
Calibration 20 dark flats, 20 darks, and 20 flats each session
preprocessed in Pixinsight
Total Time: 7 hours 44 minutes
Processing: Pixinsight – L-eNhance cropped frame → eNh
L-Ultimate cropped frame, ChannelExtraction → R, G, B,
PixelMath G + B → OIII, LRGBCombination R + G + OIII → Ult
PixelMath eNh + Ult → Linear, SPCC, DBE, SPCC, BXT, NXT,
result stretched three ways: MStr, GHS, and HST,
PixelMath MStr + GHS + HST → PM, Halo, Sat, HDR9, Scale
Location: Darling Hill Observatory near Vesper, NY
