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M16_120_rgb_13
Messier 16 – The Eagle Nebula
5x10min Ha + 5x10min OIII + 7x10min SII through my SW ED80
1x5min Ha + 13x5min OIII + 20x5min SII through my new SW 120/600 f5
Atik 314L+ + EQ5pro

M27_120_ST_03
Messier 27 – The Dumbbell Nebula
6x3min Ha + 7x3min OIII + 3x3min SII + 4x5min SII through my new SW 120/600 f5
Atik 314L+ + EQ5pro

Taken from Rushcutters Bay in Sydney Australia.

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4 Comments

  1. Great images! But you took them in the city? How do you deal with light pollution?
    Might be a dumb question, but I’m still a beginner ;)
    Cheers,
    Charlie

    • hughca
    • Posted July 3, 2013 at 10:50 am
    • Permalink

    Hey Charlie, not a dumb question at all!
    I’m imaging through narrowband filters that don’t pass most of the wavelengths of light given off by Sodium and Mercury-vapor lights. If you’re imaging with a DSLR or a colour CCD you can get broadband light pollution filters that can help a fair bit too.
    Clear skies :-)

  2. Thank you very much!
    Do those filters affect the colours in the picture?
    Cheers,
    Charlie

    • hughca
    • Posted July 3, 2013 at 11:29 am
    • Permalink

    Depends on the filter, I’ve used an Astronomik CLS and it gave the images a blue tint, mostly fixable. I’ve heard good things about the Hutech IDAS also.


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