| Designation |
IC 1396 - Vb 142 is the dark nebula
at lower right known is known as The Elephant's Trunk Nebula
|
| Type | Emission Nebula with Open Star Cluster |
| Constellation | Cepheus |
| Coordinates |
Telescope
centered at RA '21 38 16' - Dec '+57 40 02'
|
| Magnitude | 3.5 |
| Size | 120 X 100 light years |
| Distance | 2,500 light years from Earth |
| Dimensions | 170 x 140 arcminutes |
| Image Field | 90.6 x 131.3 arcminutes |
|
Notes:
|
Very large emission nebula with dense star cluster spanning about 3 degrees of sky. Only a portion is pictured here. |
|
|
| Telescope | Takahashi FS60C f/4.4 on Losmandy G-11 with Gemini L3 |
| Focal Length | 264 mm @ f/4.4 with Takahashi focal reducer |
| Guiding | Starlight Xpress 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)
|
| Image Scale | 5.23 arcsec/pixel |
| Filters |
1.25" Astronomik Type II Dichroic
IR blocking filters in Astronomik filter drawer - Clear, Red, Green,
Blue, Ha
|
| Exposures | Total exposure time: 180 minutes: 64 minutes of Luminance (unbinned), 68 minutes Ha unbinned, 16 minutes each R,G,B bined 2x2 |
| 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 '02:37:10' - '05:50:10' UT |
