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Wolf’s Cave

vdB 152 and Barnard 175, in Cepheus  ·  September 2026

Wolf's Cave — vdB 152 and Barnard 175, a blue reflection nebula at the tip of a dark dust lane in Cepheus

Wolf’s Cave (vdB 152 / Barnard 175)  ·  ©2026 Peter F. Wingard  ·  @see_theShow

Acquisition

Telescope
Askar refractor, 384 mm f/4.8 (plate-solved 388 mm)
Camera
ZWO ASI2600MM Pro — gain 100, offset 50, −5 °C
Filters
7-position wheel — L, R, G, B, Ha, OIII, SII
Guiding & control
ASI220MM Mini on a guide scope, PHD2; ZWO CAA rotator, ZWO EAF; WandererBox power; mini PC running N.I.N.A. 3.2
Framing
22h 16m 57s  +70° 08′ 54″  ·  PA 179.5°  ·  3.47° × 2.32°  ·  2.0″/pixel
Integration
L 491 × 90s (12.3 h)  ·  R 153 / G 151 / B 138 × 60s (7.4 h)  ·  Ha 20 × 180s (1 h), plus short frames for star cores — about 20.7 hours over three nights
Location
My backyard site at The Star Farm in Camden, South Carolina — Bortle 4.5
Processing
Siril and PixInsight, September 12–20, 2026

How it was made

Both logs are written from the actual N.I.N.A. and PHD2 files and the images’ own processing histories — including every mistake, mine and the machine’s.

See the legacy gallery →