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Old 16-05-2018, 10:01 PM
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gregbradley
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Autumn Milky Way and intense airglow

Taken 2 weekends ago at my dark site. Intense airglow.
Sony A7r3, Sigma Art 14mm F1.8.
6 panel mosaic each panel approx. 6 images.

Processed in Lightroom then stacked in Sequator and stitched in Microsoft ICE.

http://www.pbase.com/image/167491829/large

Greg
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Old 17-05-2018, 09:26 AM
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Excellent shot Greg. Loving that air glow!
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Old 17-05-2018, 09:39 AM
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Loving the "sunset" landscape

Best
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Old 17-05-2018, 10:40 AM
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That's amazing Greg. That airglow is something else.
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Old 17-05-2018, 03:18 PM
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Quote:
Originally Posted by archioptic View Post
Excellent shot Greg. Loving that air glow!

I seem to often get it at my dark site. Perhaps because its at 800 metres altitude.

Quote:
Originally Posted by JA View Post
Loving the "sunset" landscape

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Cheers JA. You never know what is going to show up in a nightscape.

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Originally Posted by Retrograde View Post
That's amazing Greg. That airglow is something else.
Yes its pretty intense.

Greg.
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Old 17-05-2018, 06:33 PM
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Beautiful capture Greg.

Quote:
I seem to often get it at my dark site. Perhaps because its at 800 metres altitude.
It's only 750m at my dark site which would explain why I don't get it as much

Seriously, it's hit and miss. I've been travelling with a mate past week. We saw it in the east from Parkes and Cowra and have been talking & trying to work it out.

I also got a time lapse video from SPSP that has low sparse cloud and high altitude skyglow, not as strong as yours.
https://vimeo.com/user4541365

If it's emission not refection, why is is stronger near the horizon and fainter overhead?

Near the horizon, there is additive effect of looking sideways into a thicker concentration of it. However there there are many stops of extinction present near the horizon to cancel out the additive effect of looking sideways into it?

Joe
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Old 17-05-2018, 06:43 PM
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That's amazing, Greg!
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Old 17-05-2018, 08:01 PM
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Quote:
Originally Posted by OzEclipse View Post
Beautiful capture Greg.



It's only 750m at my dark site which would explain why I don't get it as much

Seriously, it's hit and miss. I've been travelling with a mate past week. We saw it in the east from Parkes and Cowra and have been talking & trying to work it out.

I also got a time lapse video from SPSP that has low sparse cloud and high altitude skyglow, not as strong as yours.
https://vimeo.com/user4541365

Its all in that last 50 metres Joe! It really depends on Solar activity I am fairly sure.

If it's emission not refection, why is is stronger near the horizon and fainter overhead?

Near the horizon, there is additive effect of looking sideways into a thicker concentration of it. However there there are many stops of extinction present near the horizon to cancel out the additive effect of looking sideways into it?

Joe

Its a chemical reaction to UV in the upper atmosphere and emission at night. I guess you are looking at more of it when near the horizon.

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That's amazing, Greg!
Thanks Rick. I was surprised as it looked like a regular night.

Greg.
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