Messier 101 - galaxy in Ursa Majoris.
Distance 27 million light years .
Photo : the FUV team : Per Ljungstrøm, Ib Christensen, Lars Dyhr Hansen (first half of the 46 images) - followed by the night team David Langer, Mads J. Clausen , Claus S. Petersen (second half).
DATA : 46 x 200 Sec L-CCD - from 2003-04-03 start 19:39:48 UT to 22:48:34 UT
Finding chart in Ursa Majoris :
As photographed in UV from the Space Shuttle
Other amateur images
Taustrup TOC - from another Danish observatory
Deep Sky Photo - 16 " SCT - AP6
Technical Data : 16" LX200 SCT - f 10 - user retrained PEC
Sky conditions - good - Apr14, 1999 approx 2120 UT.
Photographers : Adrian Rasmussen, Mogens Winther
Messier Galaxy M101
Distance 27 mio Lightyear - "Pinwheel Galaxy" - within Ursa Majoris - "Big Dipper".
Photo : 1300 Sec = 26 x 50 seconds CCD - unguided.
(Click for full resolution - f = 4 meters !)