Galaxies get my attention. This is 2.5 hours on M51 Galaxy. There are actually 4 galaxies in the image, 2 are just hard to see. I plan on adding more data, maybe another 2 hours time permitting.
M51 is the big spiral galaxy, with the smaller NGC 5195 seen on top just above M51. It's believed super massive black holes reside at the galaxy core of both galaxies. M51 distance from earth is estimated to be 23 million light years.