Ursa Major
This is an overview over constellation Ursa Major (Big Dipper), which holds quite some galaxies and other nebula in this simple image. Click more to see crops …
An annotated version to show details.
Crops and annotated versions
Acquisition Details
Lens: Sigma 135/F1.8 DG HSM ART
Lens Speed: F2.8
Filter: Haida Nano Pro UV-IR-CUT
Camera: Canon EOS Ra
Mount: Skywatcher Star Adventurer Pro
No Guiding
Light Frames: 120x30sec
Bias, Darks, Flats
Manual dithering every 20 exposures only in RA
Camera settings: ISO 1600
Bortle 4-5, No moon
Acquisition Date: April 15, 2021
Processing
Stacking: DSS
Imaging: PixInsight