Barnard 150, a dark nebula in the constellation Cepheus. Does it look like a person running? Does it look like a sea horse?
A dark nebula is a dark cloud of gasses and dust that is so dense it blocks the visible wavelengths of light behind it.
Dark nebulas are my favorite to photograph. They are also the most difficult to me due to being virtually invisible until doing a preview stretch or looking at reference stars for framing.
Here is a single frame stretched image from the ASIair Pro. Notice how faint the nebula is. I framed it by using the three tughh stars toward the middle top.
Equipment:
Celestron 9.25” EdgeHD
Starizona Hyperstar V4 f2.2
Celestron CGEM DX mount
ZWO ASI2600mc-pro Imaging Camera
ZWO ASI224mc Guide Camera
Svbony 60mm Guidescope
ZWO ASIair Pro for image acquisition and gear control.
Image Specs:
100 x 180 second exposures
Gain 100
Calibrated and stacked in APP
Processed in PixInSight