The Whirlpool Galaxy also known as M51a is an interacting spiral galaxy with an active galactic nucleus.  It is in the constellation of Canes Venatici and is about 15 to 35 million light-years. [See my first photo of the Whirlpool Galaxy] Imaging telescope or lens:Explore Scientific 127mm ED APO triplet Imaging camera:ASI 1600 MM – … Continue reading Whirlpool Galaxy