| Designation |
IC
434 & B33 "The Horsehead Nebula" & NGC 2024 "The Flame Nebula"
|
| Type | Dark Nebula (B33), Reflection & Emission Nebula (IC 434, NGC 2024, NGC 2023, IC 432 & IC 435 |
| Constellation | Orion |
| Coordinates | Telescope centered at RA '05 40 08' Dec '-02 22 53' |
| Magnitude | |
| Size | 2 light years from the "snout to back mane" |
| Distance | 1,600 light years |
| Dimensions | 6 x 4 & 30 x 30 arcminutes |
| Image Field | 90.6 x 131.3 arcminutes |
|
Notes:
|
The Horsehead nebula 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) |
|
The
Flame Nebula (NGC 2024) is a bright emission nebula which is aptly
named although it also reminds me of a Fall Maple Leaf.
The very bright
star left of center is Alnitak or Zeta Orionis, the third
"belt star" in the distinctive Orion constellation.
| |
|
|
| Telescope | Takahashi FS60C f/5.9 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 filter in Astronomik filter drawer - Ha
|
| Exposures |
Total
exposure time: 290 minutes - Ha 38 x 5 minutes unbinned. Red
32 (8 x 4) minutes, Green 28 (7 x 4) minutes, Blue 40 (10 x 4)
minutes. RGB binned 2x.
All Sigma combined.
|
| Calibration | None |
| Processing Software | Maxim DL, Photoshop CS (8.0) |
| Location |
Apopka, FL
- 28.743 N , - 81.519 W & Color
Chiefland Astronomy
Village, FL - 29.393 N , - 82.863 W
|
| Date/Time | 10/09/04 / '06:22' - '09:54' UT' & for Color 10/16/04 - 08:55-10:36 |
