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Horsehead and Flame on 35mm Film, 



    
        

            AlenK
Horsehead and Flame on 35mm Film
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Horsehead and Flame on 35mm Film

Horsehead and Flame on 35mm Film, 



    
        

            AlenK
Horsehead and Flame on 35mm Film
Powered byPixInsight

Horsehead and Flame on 35mm Film

Technical card

Imaging telescopes or lenses: Meade MTS-SN6

Imaging cameras: Olympus OM-1

Guiding telescopes or lenses: Meade MTS-SN6


Dates:Sept. 7, 2002

Frames: 1x1800"

Integration: 0.5 hours

Avg. Moon age: 0.43 days

Avg. Moon phase: 0.20%


Basic astrometry details

Astrometry.net job: 3320804

RA center: 5h 40' 30"

DEC center: -2° 16' 12"

Pixel scale: 6.535 arcsec/pixel

Orientation: 72.970 degrees

Field radius: 1.129 degrees


Resolution: 1024x706

Data source: Traveller

Description

This 35mm film image was from my fourth night taking prime-focus, deep-sky astrophotos and only a month after my very first night. I used Elite Chrome 200 slide film. The 30-minute exposure was manually guided through a Lumicon Newtonian Easy Guider OAG with a 3x relay Barlow and a 12mm illuminated reticle eyepiece. The telescope was a Meade MTS-SN6 6-inch Schmidt-Newtonian, which came with its own unique fork mount driven by an old-fashioned AC motor drive. Vintage 80's technology.

I was quite pleased with this early success back in the day and even today I don't think it is a bad image. The main problem with film compared to digital, besides significantly less sensitivity, is that star sizes are much larger because of a phenomenon called halation. Better processing using the programs available today, including pseudo-flat fielding and star-size reduction, would probably improve this image immensely.

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Horsehead and Flame on 35mm Film, 



    
        

            AlenK