A group of galaxies in Leo whose main members comprise of: M95 (NGC 3351), M96 (NGC 3368),
M105 (NGC 3379), NGC 3384, and NGC 3389.
The Leo I Group is also popularly known as the M96 Group.
The Leo I Group is a collection of galaxies whos members, with the exception of NGC 3389,
lie at common distance of around 10 Mpc and share a common red shift.
NGC 3389 lies at twice that distance. There is a second nearby galaxy group in Leo at a similar
distance - the better known Leo Triplet.
In the above image North is to the left. Mouse over the above image for object identification.
Image crops
Full size crops of the main objects from the above image are shown below.
M95 is a beautiful barred ring galaxy (SB(r)b).
The blue colour of the ring and arms indicates widespread star forming regions,
whereas the nucleus and bar are redder indicating that they contain a predominately
older stellar population.
M96 spiral galaxy with a faint outer ring.
The ring extends the galaxy's diameter to roughly 100,000 light years.
The knot of material at 7 o'clock is probably a background edge-on spiral galaxy
visible through the ring.
M105 and NGC 3384 elipticals, and the more distant gem of a blue spiral, NGC 3389.
Technical Details
Date
2010 04 17 - 2010 05 04
Location
Pumpkin Patch Observatory, Bourn, Cambridge, UK
Environment
~12C, ~60% humidity, no moon, seeing 2.9-3.7 arcs.