Michael A. Stecker
mastecker@gmail.com



 
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vdB 152 in Cepheus
 vdB 152 (also known as the Wolf’s Cave Nebula or Barnard 175) is a faint reflection and dark nebula located about 1,400 light-years away in the constellation Cepheus. This cropped image is a joint project of James Foster and Michael Stecker using a 10-inch f/4 Newtonian telescope and ZWO ASI2600MC-Pro color camera plus Hydrogen-alpha filtered light. The total exposure time was 16.5-hours. Most of the stars were removed with Pixinsight and ML-Astro StarXterminator.
file: VDB152_LumHaRGB2cDeNoise2noStars-remsncr-1cr2asm.jpg
 Click here for full resolution image

Photographic Data
 Date:
October, 2026

 telescope:
Sky-Watcher Quattro 250P
(10-inch f/4 Newtonian telescope with coma corrector)
FL= 1,000 mm
 cropped photo
 
mount:
ZWO AM7 harmonic mount

guiding:
Off-axis, ZWO ASI174MM guide camera
imaging camera:
ZWO ASI2600MC-Pro (one-shot color astro-camera) and ZWO ASI2600MM-Pro monochrome, Hydrogen-alpha filtered light.
cropped image

exposure:
Color camera= 200 sec X 297 (990 min or16.5 hrs) with subs=200sec
Monochrome camera: LUM=106min, subs=100sec
Monochrome camera: Hydrogen-alpaha, 3 nm =294min, subs=360sec
total exposure time: 16.5 hours
processing:
MaximDL, Pixinsight, BlurXterminator and StarXterminator Pixinsight plug-ins, Adobe Photoshop Elemets 2021

photographic site:
Pinon Pines Estates (Frazier Park California)
(Bortle 4 at 5,500 ft elevation)