Perseus A or NGC 1275 is a type 1.5 Seyfert galaxy
225 Mly from us in the constellation Perseus and
is a member of the Perseus cluster of galaxies.
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Hover over the picture for an annotated version
Date: 17 October 2026
FOV: approximately 54' × 36'; the angular size of
NGC 1275 is 2.2' × 1.7'
Rotation: −0.001°
Telescope: SVBony MK127 Mak-Cass (nominally 1500mm, f/11.8
calculated 1421.31mm, f/11.2)
Guiding: ZWO ASI120MM mini mono guide cameras,
SVBony SV165 Mini 40mm f/4 guide scopes
Computer: ASIair plus
Mount: ZWO AM5 harmonic drive
Camera: ZWO ASI071mc 90 gain (-10°C)
Pixel size: 4.78 μm
Resolution: 0.694 arcsec/pixel
Filter: Optolong UV/IR cut
Stacking: seventy 300 second frames using PixInsight
Total Time: 5 hours and 50 minutes
Processing: Pixinsight – SPPC, DBE, SPCC, BXT, NXT → Linear
MStr, GHS, HST, PMath MStr + GHS + HST → Stars, Sat,
StarXT, MStr, GHS, HST, PMath MStr + GHS + HST → Starless,
HDRMST3PhLm, Sat, PMath ~(~Stars*~Starless) → Blend, scale
Location: Darling Hill Observatory near Vesper, NY
