| Designation |
B33 - The Horsehead Nebula
|
| Type | Dark Nebula illuminated by emission nebula IC 434 |
| Constellation | Orion |
| Coordinates | Telescope centered at RA '05 41 05' - Dec '-02 28 43' |
| Magnitude | |
| Size | 2 light years from the "snout to back mane" |
| Distance | 1,600 light years |
| Dimensions | |
| Image Field | 15 x 19 arcminutes |
|
Notes:
|
The Horsehead nebula is an extremely challenging visual object and requires the use of a larger aperture telescope and a H-Beta filter. It is a relatively small dark nebula comprised of mostly dust illuminated against the faint glow of emission nebula (excited hydrogen) IC 434. This whole region is part of the Orion molecular cloud, a rich star forming region, which also includes the Orion Nebula (M42) |
|
|
| 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 (V4.5) |
| 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 True Tech filter
wheel - Ha, Red, Green, Blue
|
| Exposures |
198 minutes total: Ha 9
minutes (9 x 10) unbinned, Red, Green & Blue - 36
minutes each (9 X 4) binned 2x - Sigma combined. Ha on last page
imaged portrait orientation to try and eliminate reflection issues
from bright star - also 90 miutes Ha unbinned
|
| Calibration | None |
| Processing Software | Maxim DL 4.5, Photoshop CS (8.0) |
| Location | Chiefland Astronomy Village, FL - 29.393 N , - 82.863 W |
| Date/Time |
11/06/05
- 04:46 - 07:41 UT
|