Object: Constellation: Coordinates: Size: Brightness:
NGC 3185 Leo 10h18m / +2141' 2.3' x 1.2' 12.2mag
NGC 3187 Leo 10h18m / +2152' 3.0' x 1.3' 12.9mag
NGC 3190 Leo 10h18m / +2150' 4.4' x 1.5' 11.1mag
NGC 3193 Leo 10h18m / +2153' 1.8' x 1.7' 10.8mag

The small galaxy group Hickson 44 (HCG 44) in the constellation Leo on April 6 / 7, 2018. Hickson 44 is approximately 80 million light-years from Earth. In the center of the image are the edge-on spiral galaxy NGC 3190 (top) and the S-shaped spiral galaxy NGC 3187 (bottom). To the right is the elliptical galaxy NGC 3193 and to the left is the spiral galaxy NGC 3185 (source: Wikipedia). For an annotated version of this photograph see the image below.

Fourty-two exposures of 3 minutes at ISO 800 were stacked with no dark frame subtraction with Deep Sky Stacker (resulting in a 2 h 6 min exposure) and further processed in Photoshop.
Equipment: Canon EOS 450D Baader modified camera, TeleVue Paracorr Type II coma corrector, 16" f/4.5 "Ninja" dobsonian telescope riding on a dual-axis Tom Osypowski equatorial platform, Lacerta MGEN autoguider, Lacerta off axis system (field of view comparison: image of the moon with the same equipment).




Search chart for Hickson 44 (containing NGC 3190 / NGC 3193 et al). Map © 2018 "The Mag-7 Star Atlas Project", www.siaris.net. Map is modified.
The Mag-7 Star Atlas Project map can be downloaded here .