AAPOD2 Image Archives
VdB 152, Barnard 175 & Co
Image Description and Details : Here is a rich field located within the large molecular cloud of Cepheus.
This image was an experiment under my downtown sky, and i am rather happy with the result because, although having probably approached the limits of the Bortle 7 sky, it shows that urban astrophotography still offers possibilities with this type of object.
4 types of nebulae are visible in this image, against a background of nebulosities of interstellar dust:
- the dark nebula Barnard 175, a dense pillar of dust
- the reflection nebula Vdb 152, shining a characteristic blue at the top of this dark pillar
- the old planetary nebula DeHt-5 radiating mainly in the wavelengths of ionized hydrogen and oxygen (red and blue)
- part of the SNR 110.3 + 11.3 supernova remnant whose ionized hydrogen filaments (red) cross the field
Some distant small galaxies are visible in the background despite the density of this area of the Milky Way.
37h30 of exposures carried out in September and October 2021 in Amiens (Bortle 7) through LRVB filters supplemented by H and O filters for NP and supernova remanence with:
newton 250mm f / 3.8
CEM120 mount
Camera ZWO ASI 2600mm
Processing with Pixinsight and Photoshop.
L: 645 x 120s
RGB: 33x120s, 40x120s and 44x120s
H: 85 x 300s
O: 60 x 300s
Copyright: Mathieu Guinot