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NGC 185 (also known as Caldwell 18) is a dwarf spheroidal galaxy about 2.08 million light-years away in the constellation Cassiopeia.
It is a member of the Local group, and is a satellite galaxy of the Andromeda Galaxy (M31).
Find a Hubble image of the eastern part of NGC 185 (source: Hubble Legacy Archive)
16" cassegrain in corrected secondary focus at f/10
About this Image
Unlike most dwarf elliptical galaxies, NGC 185 contains young stellar clusters, and star formation proceeded at a low rate until the recent past.
NGC 185 has an active galactic nucleus (AGN) and is classified as a type 2 Seyfert galaxy.
A nice irregular background galaxy (UGC 378) can be seen south-west of NGC 185.
Find a labeled image by Bernhard Hubl showing the positions of some globular clusters here: 1.
North is up.
below:
Technical Details
Optics
Mount
ASA DDM-85XL
Camera
SBIG STX16803 at -25C, STX filter wheel
Filters
Baader 65x65mm LRGB
Date
Sep 2012
Location
Wildon/Austria
Sky Conditions
mag 5.5 sky, raw FWHM 1.5-2.2", temperature 10-15 C
Exposure
L:R:G:B = 480:80:100:100 minutes (20-minute sub-exposures)
Programs used
Autoslew
Maxim DL 5
CCDStack
Photoshop CS5
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