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Image Data
Designation |
NGC 6334, The Cat's Paw Nebula,
The Bear Claw Nebula (bottom right)
NGC 6357, El
Cangrejo, Las Cuatro Juanitas (top left)
|
Object type |
Emission nebulae |
Coordinates |
Center field is at approx. 17h
23min - 23°00' (Sco) |
Description |
Located very close to the
galactic equator, these large starforming regions would be magnificent,
bright emission nebulae if they were not obscured by several magnitudes of
extinction, mostly in the blue and green. This makes it a challenge for
visual observation, but a prime target for Ha photography.
Click on the image for a higher resolution (50% of
original).
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Exposure |
Ha 120 min @ -25°C, 1x1 |
Camera |
SBIG STL-11000 selfguided,
Astronomik 13nm Ha Filter |
Optics |
Astro-Physics Traveler AP105EDF
f/5.9 with field flattener, prime focus. |
Mount |
Astro-Physics AP900GTO German
Equatorial Mount |
Software |
MaxIm DL/CCD, Sigma Beta 11, CCD
Sharp, Adobe
Photoshop CS |
Location - Date - Time |
San Esteban (Chile) - 22Aug2004 -
02:30 UTC |
Conditions |
Transparency 5, Seeing 5, Temperature
+6° C, moonlight. |
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