Horsehead nebula in H-alpha

Tony
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Proto Star

9 years 10 months ago #103030 by Tony

Horsehead nebula in H-alpha was created by Tony

First test using new Atik 460ex CCD camera. Taken from backgarden in heavy light pollution (Dublin!) with an almost full moon. This has caused some strong gradients which I haven't really tried to remove, this is just a quick process. Image is 12 600sec exposures with flats, no darks taken.

Horsehead nebula in H-alpha by Wailin... , on Flickr

The following user(s) said Thank You: michael_murphy, johnomahony, Mike, Kinch, yohan

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lunartic_old
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Super Giant

9 years 10 months ago #103033 by lunartic_old

Replied by lunartic_old on topic Horsehead nebula in H-alpha

Considering the conditions, that's a cracking image, well done

Paul

Programming today is a race between software engineers striving to build bigger and better programs, and the universe trying to produce bigger and better idiots. So far, the universe is winning.

Rich Cook

The following user(s) said Thank You: Tony

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CarlightExpress
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Main Sequence

9 years 10 months ago #103035 by CarlightExpress

Replied by CarlightExpress on topic Horsehead nebula in H-alpha

Tony

What filter did you use?

Simon

Clear Skies
Simon
www.flickr.com/photos/30345959@N08/
www.astrobin.com/users/CarlightExpress/

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Tony
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Proto Star

9 years 10 months ago #103042 by Tony

Replied by Tony on topic Horsehead nebula in H-alpha

CarlightExpress wrote: Tony

What filter did you use?

Simon

Hi Simon, I used a Baader 7nm Ha filter, which appears to be not immune to moonlight. A 3nm filter might be more suitable for the bad conditions I was imaging in.

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CarlightExpress
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Main Sequence

9 years 10 months ago #103049 by CarlightExpress

Replied by CarlightExpress on topic Horsehead nebula in H-alpha

Hi Tony

I have the same experience as you with the 7nm filters, moonlight is not completely eliminated, however I cannot seem to find ANY 3nm 36mm filters

Simon

Clear Skies
Simon
www.flickr.com/photos/30345959@N08/
www.astrobin.com/users/CarlightExpress/

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CarlightExpress
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Main Sequence

9 years 10 months ago #103050 by CarlightExpress

Replied by CarlightExpress on topic Horsehead nebula in H-alpha

Only Astrodon seem to do them, and wow are they expensive

$650 each

Clear Skies
Simon
www.flickr.com/photos/30345959@N08/
www.astrobin.com/users/CarlightExpress/

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Horsehead nebula in H-alpha

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