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Contains:  Horsehead nebula, IC 431, IC 432, IC 434, IC 435, NGC 2023, NGC 2024, The star Alnitak (ζOri), The star σOri
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Horsehead HaRGB, 


            Jeremy Seals
Horsehead HaRGB
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Horsehead HaRGB

Technical card

Imaging telescope or lens:Stellarvue SV80ST-25FT

Imaging camera:SBIG STF-8300M

Mount:Losmandy G11 Gemini 2

Guiding telescope or lens:SBIG OAG-8300

Guiding camera:SBIG ST-i Mono

Focal reducer:TeleVue TRF-2008 0.8x

Filters:Ha 5nmAstrodon Gen 2 Series E LRGB

Accessory:Starizona MicroTouch Autofocuser

Dates:March 11, 2013

Astrodon Gen 2 Series E LRGB: 21x180" -10C bin 2x2
Ha 5nm: 7x300" -10C bin 1x1

Integration: 1.6 hours

Avg. Moon age: 29.19 days

Avg. Moon phase: 0.13%

Basic astrometry details job: 338588

RA center: 5h 41' 7"

DEC center: -2° 17' 52"

Pixel scale: 2.935 arcsec/pixel

Orientation: 90.165 degrees

Field radius: 1.349 degrees

Resolution: 2700x1911

Locations: My Backyard, San Antonio, Texas, United States


Ha used for luminance, bin 1
RGB bin 2 used for color



Jeremy Seals
License: None (All rights reserved)

Sky plot

Sky plot


Horsehead HaRGB, 


            Jeremy Seals