M105 is a magnitude 9.5 elliptical galaxy in Leo, and is shown in this image as the galaxy near the bottom of the image. M105 is located near M95 and M96, and can be seen in the same telescopic field of view as those two galaxies. M105 is separated from M96 by only 48 arc-minutes. M105 is about 5.3 x 4.8 arc-minutes in size. The galaxy at the right center of the image in NGC 3371 rated at magnitude 9.9. The faint magnitude 11.8 galaxy above and to the left of NGC 3371 in this image is NGC 3389. M105 is about 29 million light-years away and is part of the Leo Galaxy Group that includes M95, M96, M65 and M66. This galaxy was discovered by Mechain in March 1781, and was reported to Charles Messier. However, the object was overlooked, and Messier did not add it to his final published list. M105 was added to the list afterwards based upon Messier's records.
This is an RGB composite CCD image taken with an SBIG ST-8XE CCD on a Takahashi FCT-150 refractor.
M105 (NGC 3379)
RA: 10h 48m 10s Dec: +12d 32' 50"
February 18, 2006
Image by Sid Leach
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