| Type |
Location |
r.a. |
dec. |
Size |
Magnitude |
Distance |
| Galaxy |
Leo |
11h37.73 |
+22°00.6 |
|
14 |
480 Mly ??? |
This group of 7 galaxies (actually there are 9 visible but only 7
have NGC designation) is known as the Copeland's septet or Hickson 57.
It lies about 480 million light-years away in the constellation Leo.
From left to right:
Upper group of 3 - NGC 3748, NGC 3745, NGC 3746
Lower group of 3 - NGC 3753, NGC 3754, NGC 3750
Bottom - NGC 3751
The "bright" start is Mag 8
A supernova was discovered April 1st 2005 in NGC 3746 (SN2005BA). It is
clearly visible on this image (see finder chart below).
Image data :
| Date |
Telescope |
Binning |
Exp Time (s) |
Special processing |
Notes |
| April 16, 2005 |
Centurion 18" |
L 1:1
RGB 3:1 |
L 3x300
RGB 300 |
Max Entropy, LRGB, DDP |
|
|
