Weinberger 3-1 in Hercules
We 3-1, or PK 044+10.1, is a very faint
planetary nebula in Hercules.
Hover over the picture for an annotated version
Date: 20 August 2026
FOV: 15' × 10'
Rotation: 0.002°
Telescope: SVBony MK127 Mak-Cass (nominally 1500mm,
calculated 1450.21mm, f/11.4)
Guiding: ZWO ASI120MM mini mono guide cameras,
SVBony SV165 Mini 40mm f/4 guide scopes
Computer: ASIair plus
Mount: ZWO AM5 harmonic drive
Cameras: ZWO ASI071mc Pro (-10°C) at 90 gain
Pixel size: 4.78 μm
Resolution: 0.693 arcsec/pixel
Stacking: fifty four 300 second frames using Pixinsight
Total Time: 4 hours 30 minutes
Processing: Pixinsight
MGC, DBE, SPCC, BXT, NXT → Linear
Linear, HTS, GHS, MStr, MAS,
PixelMath 0.25*(HTS + GHS + MStr + MAS) → Starless
Linear: MultiAdaptiveStretch → Stars
PixelMath ~(~Stars*~Starless), DynCrop/Scale
Location: Darling Hill Observatory near Vesper, NY