LBN 553, is buried in a collection of bright and
dark nebulae in the constellation Cepheus.
Hover over the picture for an annotated version
Date: 6 September 2026
FOV: 4.5° × 3.0°
Rotation: 179.996°
Telescope: Askar FRA300 (nominally 300mm, f/5
calculated 298.74mm, f/4.979)
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 ASI2600mc Pro (-10°C) at 100 gain
Pixel size: 3.76 μm
Resolution: 2.596 arcsec/pixel
Stacking: eighty two 300 second frames using Pixinsight
Total Time: 6 hours 50 minutes
Processing: Pixinsight
MGC, DBE, SPCC, BXT, NXT → Linear
Linear: MultiAdaptiveStretch → Stars
HTS, GHS, MStr, and MAS run on Linear
PixelMath 0.25*(HTS + GHS + MStr + MAS),
CurvesTransformation, HDRMST6PhLm → Starless
PixelMath ~(~Stars*~Starless), DynCrop/Scale
Location: Darling Hill Obseratory near Vesper, NY
