| Designation |
Leo Trio: Messier
65, 66 & NGC 3628 - Part of the
Leo I Galaxy Cluster
|
| Type | Galaxy Cluster - 3 spiral bar galaxies |
| Constellation | Leo |
| Coordinates | Telescope centered at RA '11 19 29' Dec '+13 24 39 |
| Magnitude | m9.3, m8.9 & m9.5 respectively |
| Size | Each galaxy is approximately 60,000 - 80,000 light years across. |
| Distance | 31 million light years |
| Dimensions | |
| Image Field | 88 x 126 arcminutes |
|
Notes:
|
This is a composite of a widefield shot blended with 3 Hi-Res shots of each galaxy. The widefield and NGC 3628 were taken with the SXV-H9 camera, and M65 & M66 were taken with the SX MX-7C one shot color camera from Copper Breaks State Park in North Texas in 2002 and Sebring FL 2003. |
| Composite done in Photoshop CS | |
|
|
| Telescopes | Takahashi FS60C f/5.9 & Meade 10" LX200 f/10 on Losmandy G-11 with Gemini L3 |
| Focal Length | 264 mm @ f/4.4 with Takahashi focal reducer, Hi-Res galaxy detail - 1575 mm |
| Guiding | ST-4 (Hi-Res) & SXV guidehead through 10" SCT @ f/3.3 |
| Telescope Control | Maxim DL (V3) |
| CCD Camera |
Starlight Xpress SXV-H9
- USB 2 ExView progressive scan
1392 x 1040 (6.45 uM) pixel array (8.98
x 6.71 active area) - M65 & M66 Hi-res with SX MX7C single shot
color camera
|
| Image Scale | 5.23 arcsec/pixel & .88 arcsec/pixel Hi-Res |
| Filters |
1.25"
Astronomik Type II Dichroic IR blocking filters in Astronomik filter
drawer - Clear, Red, Green, Blue
|
| Exposures |
Total exposure time
270 minutes: Widefield -Luminance 60 (15x4) minutes unbinned, RGB
16 minutes each binned 2x2.
Hi-Res - NGC3628 - 114 mins, M66-
28 mins, M65- 30 mins
|
| Calibration | None |
| Processing Software | Maxim DL, Photoshop CS (8.0) |
| Location | Chiefland Astronomy Village, FL - 29.393 N , - 82.863 W |
| Date/Time | 11/22/03 / '10:14:30' - '12:03:39' UT' (widefield shot) |
