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WHAT IS MyDay?
MyDay are our best memories gathered in one place. They are our purest thoughts, wishes and feelings, mostly made of love, joy and happiness. This is all positive energy that gives us purpose an...
Loud thoughts
I have found a peace and comfort in a beautifull church in Ireland, Drumcliff. On a small table there was an invitation from all the good people living there, to visitors. They have invited us to  put  deepest wishes and thoughts on a paper and let it  in  small wooden box. The invitation in that church full of positive energy touched me and I have left a small wish in the small wooden box. I believe that there is so much energy in their prayers that they will manage to fulfill my wish.
I am so greatful to the people  who are being so kind. They have made my day special.
(Berta)
41st week in year
13 October 2024

Important eventsBack

The Whirlpool Galaxy is discovered by Charles Messier13.10.1773

Wikipedia (08 Oct 2013, 11:47)
The Whirlpool Galaxy (also known as Messier 51a, M51a, or NGC 5194) is an interacting grand-design spiral galaxy in the constellation Canes Venatici. Recently it was estimated to be 23 ± 4 million light-years from the Milky Way Galaxy, but different methods yield distances between 15 and 35 million ly. Messier 51 is one of the best known galaxies in the sky. The galaxy and its companion (NGC 5195) are easily observed by amateur astronomers, and the two galaxies may even be seen with binoculars. The Whirlpool Galaxy is also a popular target for professional astronomers, who study it to further understand galaxy structure (particularly structure associated with the spiral arms) and galaxy interactions.


Discovery

What was later known as the Whirlpool Galaxy was discovered on October 13, 1773 by Charles Messier, and is designated as M51. Its companion galaxy, NGC 5195, was discovered in 1781 by Pierre Méchain. It was however not until 1845 that the Whirlpool became the first to be recognized as a spiral. This was achieved by Lord Rosse employing a 72-inch (~1.83 m) reflecting telescope which he constructed at Birr Castle, Ireland. Sometimes M51 is used to refer to the pair of galaxies, in which case the individual galaxies may be referred to as M51A (NGC 5194) and M51B (NGC 5195).

In 2005 a supernova (SN 2005cs) was observed in the Whirlpool Galaxy, peaking at apparent magnitude 14.

On 31 May 2011 a magnitude 13.5 type II supernova (SN 2011dh) was detected in M51 at coordinates 13:30:05.08 +47:10:11.2.


   
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