English: Messier 81 group with comet C/2017 T2, visible to the right, on May 22, 2020. The photo is created by the stacking of 42 60s ISO 800 exposures in DeepSkyStacker.
Camera used: Olympus E-PL5.
Lens used: Panasonic 45-150mm f/4-5.6 at 150mm f/5.6.
The comet appears slightly elongated due to its apparent motion against the deep sky objects.
to share – to copy, distribute and transmit the work
to remix – to adapt the work
Under the following conditions:
attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.