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M42, the Great Orion Nebula, is the showpiece object of the
northern hemisphere. It is easily seen by naked eye as a slightly fuzzy "star" at the center of Orion
the Hunter's sword. M42 is the most photographed object beyond our solar system due to its large size and
brightness. M42 is also an excellent visual target for all size telescopes and binoculars, with or without
nebula filters.
At the core of M42 is the Trapezium cluster. Even small telescopes can see this tight cluster of 4 bright
stars, but photographs usually overexpose this area. Larger telescopes will show 5 or 6 Trapezium stars. The Great
Orion Nebula is a bright starbirth region in a much larger cloud of gas and dust covering half the Orion constellation. The
bright roundish area across the dust lane from the main nebula has been numbered M43, though it appears to be part
of the same structure. The dark nebula forming the dust lane has been nicknamed the "Fish's Mouth".
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Object Details:
Type:
Emission nebula
Constellation: Orion
Distance:
1600 light-years
Size: 30 light-years
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M42/M43 (Orion Nebula)
Scale: 27 x 20 light years
Date: 10/22/07 & 11/04/07
Site:
Harahan, LA
Conditions: Clear, Moist
Exposure: 49x4m,
12x30s
Filters: IDAS LPS-P48
Processing: MSB Astroart 3.0
Telescope: 4" Tak FSQ-106N
Reducer: None
(f/5.0)
Image CCD: SX SXV-H9C
Guide CCD: SX MX7C
Guide
Scope: Vixen ED80Sf
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M42/M43 (Orion Nebula)
Date: Dec. 25, 2005
Site: Harahan, LA
CCD Duration: 5s, 15s, 2m, 5m
Total
Exposure: 1.21 hours
Filters: Orion SkyGlow LPR
Processing: MSB Astroart 3.0
Telescope:
4" Tak FSQ-106N
Reducer: None (f/5.0)
CCD: Starlight Express MX7C
Autoguider: S.T.A.R. 2000
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M42/M43 (Orion Nebula)
Date: Oct. 19, 2003
Site: Harahan, LA
Exposure (main):
CCD, 5 x 2 min.
Exposure (core): CCD, 5 x 30 sec.
Filters:
Orion SkyGlow LPR
Processing: MSB Astroart 3.0
Telescope: 10" Meade LX200
Reducer: Meade f/3.3
CCD:
Starlight Express MX7C
Autoguider: S.T.A.R. 2000
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M42/M43 (Orion Nebula)
Date: Jan. 8, 2003
Site: Harahan, LA
Camera: Olympus OM-1
Film: Kodak Supra 400
Exposure: 6 x 15 min.
Filters:
Lumicon Deep-Sky LPR
Processing: MSB Astroart 3.0
Telescope: 10" Meade LX200
Reducer: Lumicon
GEG f/5.8
Autoguider: MX7C/S.T.A.R. 2000
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Orion's Sword (w/ M42)
Date: Nov. 2, 2003
Site: Harahan, LA
Exposure: CCD, 5 x 45 sec.
Lens: 135 mm, f/2.8
Filters:
K2 yellow
Processing: MSB Astroart 3.0
CCD: Starlight Express MX7C
Autoguider: S.T.A.R. 2000
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