NGC 5915, NGC5916, and NGC5916a (here shown
as PGC54779) are gravitationally interacting
galaxies located about 63 Mly from us.
Hover over the image for an annotated view.
Date: 18 May 2026
FOV: cropped to 20' × 13' 20"; the apparent size
of NGC 5916 is about 3.09′ × 0.7′
Rotation: −180.000°
Telescope: Orion 127mm Mak-Cass (1381mm, nominally 1540mm, f/12.1)
Guiding: ZWO ASI120MM mini mono guide camera,
SVBony SV165 Mini 40mm f/4 guide scope
Computer: ASIair pro Raspberry Pi
Mount: ZWO AM5N
Camera: ZWO ASI071MC Pro Cooled (-10°C) Color CMOS gain 90
Pixel size: 4.78 μm
Resolution: 0.713 arcsec/pixel
Filter: none
Frames: fifteen 300 second subs
Total Time: 1 hours and 15 minutes
Calibration: 20 flats, 20 dark flats, and 20 darks
Processing: Pixinsight – DBE, SPCC, BlurXT, NoiseXT → Linear
MultiscaleAdaptiveStretch → Stars, Sat
Linear, StarXT, MAS, MStr, GHS, HST,
PMath MAS, MStr + GHS + HST → Starless,
HDRMST3PhLm, Sat, PMath ~(~Stars*~Starless) → Blend, scale
Location: Darling Hill Observatory near Vesper, NY
