IC 2718


Combination of 3, 3 minute exposures, SBIG ST-9E CCD.
16" f/10 with f/6.3 focal reducer.

IC 2718 is a faint elliptical galaxy that is a member of a small group of galaxies in Leo, about 1 degree south of M 65, and M 66. I came across this group while imaging the periodic comet, 62P Tsuchinshan.

Several of the galaxies are identified in MegaStar as IC objects, however several of them have incorrect locations and many of the smaller and fainter galaxies are not identified. Among those that are mis-identified are the two brightest, IC 2718 (1) and IC 2720 (2). For IC 2718, the indicated location is a little to the east (left), while for IC 2720, the indicated position is a little to the north (above). The actualy location of IC 2720 is labeled as a star, and given a "non-star" GSC identification.


Combination of 3, 3 minute exposures, SBIG ST-9E CCD.
16" f/10 with f/6.3 focal reducer.

The other galaxies indicated with numbers are (3) IC 2715, (4) IC 2717, (5) IC 2723, and (6) IC 2727. The "x" marks the indicated location of IC 2719. As can be seen from the image, there is no obvious galaxy in this location. Which object is really IC 2719 is not obvious as there are several possible candidates.

IC 2720 is the brightest galaxy in the group, with a listed magnitude of 14.8, and so it should be visible in a 12" telescope without too much difficulty. IC 2718 is listed as magnitude 15.6 and so would be a much tougher test. It would be interesting to see just how many of these galaxies would be visible in a large telescope under dark skies.