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Scroll down for older images (last update: 01/01/2021)B33 Horsehead Nebula
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B33 Horsehead, NGC 2023 and IC 435 Nebulae in Orion |
Date | December 24 & 25, 2011 |
Exposure | LRGB 95:105:105:95 (cropped) |
Camera | STL11000M with Astronomik filters |
Telescope | ASA 10N f/3.7 on AP900GTO CPO3 |
Guiding | External guide head with 50mm MiniBorg |
Processing | MaximDL, PhotoshopCS5, AstroActions |
Comments | Cool; data acquired using CCD Commander |
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B33 Horsehead Nebula and NGC 2024 Flame Nebula in Orion |
Date | November 24, 26, 27, and 29, 2007 |
Exposure | HαRGB 300:15:15:15 (Hα + Red 80/20; Hα used for luminance) |
Camera | STL11000M with Astronomik filters |
Telescope | Takahashi Sky90 f/4.5 on Losmandy G11 w/Gemini |
Guiding | Remote guide head & E-finder |
Processing | MaximDL, PhotoshopCS2, FITS Liberator, AstroActions |
Comments | Moderate seeing; some moonlight |
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B33 Horsehead Nebula and NGC 2024 Flame Nebula in Orion |
Date | December 9 and 23, 2006 |
Exposure | Hα 12 x 15 minutes; RGB 6 x 5 minutes 180:30:30:30 |
Camera | ST2000XM with Schuler Hα filter, SBIG RGB |
Telescope | Takahashi Sky90 f/4.5 on Losmandy G11 w/Gemini |
Guiding | Self-guided |
Processing | MaximDL, PhotoshopCS2 |
Comments | Cool with moderate seeing |
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B33 Horsehead Nebula and NGC 2024 Flame Nebula in Orion |
Date | December 9, 2006 |
Exposure | Hα 12 x 15 minutes |
Camera | ST2000XM with Schuler Hα filter |
Telescope | Takahashi Sky90 f/4.5 on Losmandy G11 w/Gemini |
Guiding | Self-guided |
Processing | MaximDL, PhotoshopCS2 |
Comments | Cool and windy, waning moon in the sky |
All text and images � Gregg L. Ruppel 1998-2021.
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