| Designation |
NGC 4490 - The Cocoon
galaxy - companion - NGC 4485
|
| Type | Spiral galaxy -Type SB(s) d pec III |
| Constellation | Canes Venatici |
| Coordinates | Telescope centered at RA '12 31 20' - Dec '+ 41 37 09' |
| Magnitude | 9.8 |
| Size | |
| Distance | 40-50 million light years |
| Dimensions | 6.4 x 3.3 & 2.7 x 2.3 arcminutes |
| Image Field | 15 x 19 arcminutes |
|
Notes:
|
These galaxies have had a near collision, which distorted each of their spiral arms. They are now moving away from each other and are separated by aobut 24,000 light years |
|
|
| Telescopes | Meade 10" LX200 f/10 on Losmandy G-11 with Gemini L3 |
| Focal Length | 1575 mm @ f/6.3 |
| Guiding | SXV guidehead through Takahashi FS60C @ f/5.9 |
| 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)
|
| Image Scale | .88 arcsec/pixel |
| Filters |
1.25"
Astronomik Type II Dichroic IR blocking filters in Astronomik filter
drawer - Clear, Red, Green, Blue
|
| Exposures |
175 minutes (23 x 5) unbinned
Luminance, 20 minutes (5 X 4) each R,G,B binned 2x
|
| Calibration | None |
| Processing Software | Maxim DL, Photoshop CS (8.0) |
| Location | Chiefland Astronomy Village, FL - 29.393 N , - 82.863 W |
| Date/Time | 04/19/04 / '03:33' - '06:21' UT |
