NGC 4565 wide field

clic for 35% size 1393 x 931 (206 kB)

Clic here for 70% size 2786x1862 (639 kB)

Clic here for the mouse-over image with magnitude of galaxies labeled (248 kB)


About this Image

The considerably bright, large and slim edge-on spiral NGC 4565 is a showpiece for amateurs and often is thought that its view may resemble that of our own Milky Way, seen from outside from a place situated near its galactic equatorial plane. Its core, dominated by light from a population of older, yellowish stars is dramatically cut by obscuring dust lanes of the outer spiral arms.

NGC 4565 was discovered by William Herschel in 1785. It lies about 31 million light years distant in the constellation Coma Berenices.
The many visible background galaxies belong to the Coma galaxy cluster, some 300 million light years away.

A closeup at NGC 4565 with mag 14 companion NGC 4562 in 100% size is shown below.


Technical Details


105mm TMB refractor with flattener at f/6.5

Mount MK-100 GEM
Camera SBIG STL-11000M at -25C, 1x1 bin, internal filter wheel
Filters Astronomik LRGB
Date 23 May 2004.
Location Wildon/Austria
Sky Conditions mag 5.5 sky, high transparency, temperature 5 C
Exposure L:R:G:B = 80:20:20:20 minutes (10-minute sub-exposures),
Processing Image aquisition in Maxim DL 4.0; Image calibration, aligning, min-max excluding average stacking, color synthesis (R:G:B = 1.3:1:1.25), DDP, one LR deconvolution in ImagesPlus; color balance, curves in Photoshop; size 19/35/70%;
north is up;