NGC 5907 from my own „Sterntaucher“ observatory

My next project in 2020 was the galaxy NGC 5907 in the constellation Draco.

For this I was inspired by the current discussions about the existence of the second loop of the stellar tidal stream around NGC 5907 (van Dokkum, Müller, Martinez-Delgado). Also the images of my colleagues from the group „Tief belichtete Galaxien (Long exposed galaxies)“ (TBG), cannot confirm this second loop.
My own main concern was whether I could detect anything at all of the actual stellar tidal stream from my light-polluted location on the outskirts of a major city.

Here is an overview of the used equipment and the exposure times:

Data calibration and registration and the final processing was done with PixInsight. The RGB Data was upscaled to the luminance data. The result was as follows:

The faintest star in my image has an apparent magnitude of 22.3 mag_G (SDSS DR5).

The two highest redshift quasars [Flesh 2015] in the image are:
SDSS J151410.66+560555.9 z=3.10 mag_G=20.5 (Gaia DR2)
SDSS J151707.18+562301.7 z=3.03 mag_G=20.3 (Gaia DR2)

In the coloured image is only a hint of the stellar tidal stream visible. Therefore I produced a second version, with additional 654 min luminance data from 2019. In this inverted and stretched image parts of the stellar tidal stream are detectable. Please see below.