The Whirlpool Galaxy (or M51), was discovered in 1774 by Charles Messier.
It is wildly believed that the Whirlpool Galaxy (Messier 51a) was discovered in 1845.However, it was actually discovered in 1773. It was only recognised as a spiral galaxy in 1845.
Simply Becca's it looks like a whirlpool. See related link for a pictorial.
Yes. M51 (Messier 51) aka Whirlpool galaxy are the same thing.
The Whirlpool Galaxy (aka M51) has a companion galaxy called NGC 5195, which has been passing behind (from our view) M51 for hundreds of millions of years.
The M51 is better known as the whirlpool galaxy.
The Whirlpool Galaxy or M51a (NGC 5194) is one of the brightest and picturesque galaxy in the sky, and is located in the constellation Canes Venatici. It is approximately 23 million light years from us
Comet Galaxy, Whirlpool Galaxy, Mayall's Object and Black Eye Galaxy.
The Whirlpool Galaxy or M51 can be found in the constellation Canes Venatici. It is approximately 23 million light years from us.See related link for a star map.
The Sunflower Galaxy (M63 galaxy) and the Whirlpool Galaxy (M51 galaxy).
Whirlpool Galaxy is a galaxy that can be observed by astronomers. It begins with the letter W.
The Whirlpool Galaxy, also known as M51, is a spiral galaxy about 23 million light-years away. While it is known to have many stars, it is difficult to confirm the presence of planets within other galaxies due to the large distances involved. So, as of now, there is no confirmed information on planets in the Whirlpool Galaxy.
It's fair to say that our own galaxy was discovered first.