Hello,
Here is Sh2-140 an emission nebula in the constellation Cepheus (close to the cave nebula). It is located about 2900 light years from us.
https://www.astrobin.com/sjhup4/
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Takahashi Epsilon-160ED
ZWO ASI2600MM-Pro / EFW / Filtres Baader LRGB
Monture Ioptron GEM45
Guidage GT-40 / ASI290MM-mini
L : 37 x 120’’
RGB : 80 x 120’’
Total integration : 3h54