van den Bergh 152, also catalogued as Cederblad 201, is a faint reflection nebula that lies about 1,400 light years away in the constellation Cepheus. The dark area to the left of the blue reflection nebulosity of vdB152, is a Bok Globule catalogued as Barnard 175. This complex is also known as the Wolf's Cave.
Telescope: Stellarvue Raptor SVR105 Apo @ f/7
Accessories: Stellarvue SFF7-21 flattener; Dew control by Dew Buster; Alnitak Flat Man
Mount: Takahashi EM-200 Temma2
Camera: QSI683wsg-8 CCD @ -20C
Guiding: Starlight Xpress Lodestar via PHD
Filters: Astrodon E-Series Gen II LRGB filters
Exposure: Lum: 12 x 15min. binned 1x1 ; RGB: 10 x 5min. binned 2x2 each channel
Acquisition: ImagesPlus 5.0 Camera Control
Processing: PixInsight 1.8
Date(s): September 3 - 5 & 7 2015 & August 13, 2015
SQM reading (begin - end): N1:21.35 – 20.72; N2:20.25 – moon; N3:21.46 – 21.39; N4: 20.78 - 20.76
Temperature (begin - end): N1:70.7ºF – 68.0ºF; N2:72.1ºF – 65.7ºF; N3:66.9ºF – 66.6ºF; N4:73.0ºF – 72.0ºF
Capture conditions: TRANSPARENCY: N1 = Avg 3/5, N2 = Poor 2/5, N3 = Avg 3/5, N4 = Above Avg 4/5; SEEING: N1 = Above Avg 4/5, N2 = Above Avg 4/5, N3 = Avg 3/5, N4 = Avg 3/5
Location: Fall Creek Falls State Park, Pikeville, TN, USA & Portland, TN, USA