vdB 158 and GAL 110-13 (LBN 534)


vdB 158

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Location / Date

Zellerndorf, Aug and Sept 2013

Telescope / Mount / Guiding

ASA 10" Astrograph, ASA 3" Wynne Corrector
ASA DDM60, no Guiding

Camera / Exposure

Canon EOS 6D not modified

85 x 10min ISO 400 (total 14h 10min)

Processing

Theli, Fitswork, PixInsight, Photoshop

Notes

GAL 110-13 (also known as LBN 534, DG 191) is an isolated and elongated molecular cloud in the constellation of Andromeda. It is located near the border of the Lac OB1 association and it is suggested that the cloud, together with the young stars associated with it, is likely a part of Lac OB1a.
GAL 110-13 is elongated and roughly points toward 10 Lac. This implies that Lac OB1b or 10 Lac alone is responsible for shaping the cloud. Either shock fronts from a supernova or ionization fronts from a massive star could have caused the shape of this cloud as well as the spatial distribution of young stars in GAL 110-13.

The blue reflection nebula, vdB 158, is located at the southern end of the cloud. The nearby bright B9.5V star, HD 222142, illuminates VdB 158.

PK 110-12 1 is a small planetary nebula. LuboŇ° Kohoutek discovered the PN in 1963. Distance estimates range from 13.8 to 17.1 thousand light-years.

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