PK164+31-1.jpg
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PK164+31-1.jpg
Object: PK164+31.1, Jones-Emberson 1
Optic: BA200 (200/584mm Newton f/2.9) + Newtonmaster, ASA 0,73x Newton Coma Corrector
Camera: ZWO ASI 1600MM-C @ -20°C, Gain 300, Offset 50
Filter: ZWO EFW 7x36mm, ZWO 36mm Filter, Ha, OIII
Exposure: total 2,9h, Ha 24x4min, OIII 20x4min, 31x Dark, 210x Bias, 81x Flat(Ha), 81x Flat(OIII)
Color: Bicolor
Guiding: TS-OAG 9mm, ASI120MM, PHD2
Date/Location: 2017-03-25, Zirndorf
Image Processing:
Pixinsight:
ImageCalibration, CosmeticCorrection, StarAlignment, ImageIntegration, DBE, STFStretch, PixelMath
R:G:B=Ha:OIII:OIII+0,15xHa
PS: blend of background and planetary nebula
CRAW: background noise reduction, final tweaks
Wiki:Jones-Emberson 1 (PK 164+31.1) is a 14th magnitude planetary nebula in the constellation Lynx at a distance of 1600 light years. It is a larger planetary with low surface brightness. The 16.8-magnitude central star is a very blue white dwarf.