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Witch Head Nebula

Intense light streams from Rigel (bright star at right) across 40 light years of space to illuminate the Witch Head Nebula, then reflects another 775 light years to reach us. This nebula is very dim and is just barely above sky glow at a clear dark site. South is up in this image.
Rigel is B8 supergiant star with an absolute visual magnitude 40,000 times that of our Sun. Its surface temperature is 11,000 K.
Object: Witch Head Nebula (IC 2118) in Eridanus/Orion
Exposures: 2 @ 45 minutes
Telescope: Astro-Physics 105mm f6
Mount: Losmandy GM-8 @ 0.5x
Guiding: SBIG ST-4 @ 600 mm (A2)
Camera: Pentax 67
Film: hypered Kodak PPF 400
Location: Tierra del Sol, CA
Date: 27-Dec-00 21:02 PST
Conditions: seeing 6/10, transparency 5/10, LVM 5.5, 45 F
Processing: UMAX Powerlook 3000, Auriga Imaging RegiStar 1.0.2, Adobe Photoshop 6.0.1, bgsmooth 1.5 100
2000, 2001 Matt BenDaniel

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