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Jupiter w/GRS 2019-06-18

dslr Maksutov planet astrophotography
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#1 BQ Octantis

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Posted 18 June 2019 - 07:37 AM

G'day all,

 

Seeing was much better tonight…I was able to push to 3.8 pixels per Airy disk:

 

wavelet_003-005_RGB_3.8ppAd.jpg

Jupiter w/GRS 2019-06-18 10:34 UTC, 36˚ elevation
Skywatcher 180 (2700mm f/15 Mak-Cass)
12.5mm Kokusai Kohki Fujiyama HD orthoscopic
Canon T3i (stock) LiveView Capture (via AstroDSLR v1.3)
Orion SkyView Pro EQ GoTo Mount (sidereal track)
Aligned &  stacked in Lynkeos v.3.1
Processed in Lynkeos & Photoshop CS5 w/
Annie's Astro Actions v7.0 & Astronomy Tools v1.6
Scale = 3.8 pixels per Airy disk (λ = 536nm)
Seeing = 4/5, jetstream = 43 m/s
Outback Northern Territory, Australia

 

Cheers,

BQ


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#2 JonH

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Posted 18 June 2019 - 08:00 AM

Beautiful - just shot a nice Jupiter myself from Brisbane (its in the Questar forum). Funny how we both had good seeing but are so far apart and posted within a minute of each other. 

 

Clear skies

 

Jon



#3 BQ Octantis

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Posted 18 June 2019 - 04:18 PM

Beautiful - just shot a nice Jupiter myself from Brisbane (its in the Questar forum). Funny how we both had good seeing but are so far apart and posted within a minute of each other.

Very nice! It looks like you were out later than me. I have another sequence to process 11:13-11:20 UTC with better seeing from elevation gain, but the one at 11:53 was no better.



#4 JonH

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Posted 18 June 2019 - 04:33 PM

Yes indeed. Its a shame there wasnt a transit on, I think that was the  best seeing I have ever had in Brisbane.



#5 BQ Octantis

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Posted 19 June 2019 - 04:32 AM

Here's the one from 11:53 UTC. It's a single stack of 683 of 863 frames in a 100 second interval (8.63 fps). I typically derotate & combine my 3 best of 5 intervals with roughly this same frame fraction (my fps is variable) for a total of 2048 frames (for a stacking gain of 32√2 = 45×). But because the seeing was the same as the second session, I only captured one video. Other than some slight square artifacts at the edges, the quality from a single stack was pretty decent at 3 pixels per Airy disk:

 

wavelets_011_RGB_3.0ppAd.jpg

Jupiter w/GRS 2019-06-18 11:54 UTC, 55˚ elevation
Scale = 3.0 pixels per Airy disk (λ = 536nm)
Seeing = 4/5, jetstream = 44 m/s
Outback Northern Territory, Australia

 

BQ


Edited by BQ Octantis, 19 June 2019 - 05:40 AM.

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#6 BQ Octantis

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Posted 19 June 2019 - 05:41 AM

A final stack:

 

wavelets_006-009_RGB_3.3ppAd.jpg

Jupiter w/GRS 2019-06-18 11:16 UTC, 46˚ elevation
Scale = 3.0 pixels per Airy disk (λ = 536nm)
Seeing = 4/5, jetstream = 44 m/s
Outback Northern Territory, Australia

 

BQ


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#7 Tulloch

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Posted 19 June 2019 - 06:08 AM

Love the final stack - great detail in the upper cloud band without too much noise.

 

Hope to get some good seeing coming my way soon, still cloud cloud cloud. 


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#8 BQ Octantis

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Posted 19 June 2019 - 02:58 PM

Love the final stack - great detail in the upper cloud band without too much noise.

 

Hope to get some good seeing coming my way soon, still cloud cloud cloud. 

Cheers, mate!

 

My chief complaint is the seeing…the same jetwind that clears the atmosphere wreaks havoc on the seeing. When it moves north or south, I get clouds from the opposite end.

 

BQ




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