Disks in WL, CaK and Ha and animation of NW Limb 9/13/2022
- rigel123
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Disks in WL, CaK and Ha and animation of NW Limb 9/13/2022
The animation was recorded between 15:50 - 16:34 UTC and is a bit skippy due to having to pause recordings to let the big, fluffy, annoying cumulus clouds to pass! Stuff was happening quickly and I finally gave up as the gaps between clouds got smaller so I simply caught the full disk shots when I could. It appears that some post flare loops deteriorate and are replaced by some additional surge spikes in the animation.
FD WL FD CaK FD Ha NW Limb Animation
NW Limb Animation 9 13 2022 by Rigel123, on Flickr
Link to Astrobin
FD WL FD CaK FD Ha NW Limb Animation
NW Limb Animation 9 13 2022 by Rigel123, on Flickr
Link to Astrobin
Warren
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Re: Disks in WL, CaK and Ha and animation of NW Limb 9/13/2022
Really nice set of images - would be nicer to see in color. Thanks, John W.
- rigel123
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Re: Disks in WL, CaK and Ha and animation of NW Limb 9/13/2022
Thanks John! Yeah, I’m kind of a B&W guy!
Warren
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- marktownley
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Re: Disks in WL, CaK and Ha and animation of NW Limb 9/13/2022
Nice disks Warren! Are you using the Orion at 80mm for the CaK with the 174 camera?
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Re: Disks in WL, CaK and Ha and animation of NW Limb 9/13/2022
What a joy to see these, brought a big smile to my face
Alexandra
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Re: Disks in WL, CaK and Ha and animation of NW Limb 9/13/2022
Great Imaging Warren, the animation is great.
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Re: Disks in WL, CaK and Ha and animation of NW Limb 9/13/2022
Excellent catch with the loops and nice images
- rigel123
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Re: Disks in WL, CaK and Ha and animation of NW Limb 9/13/2022
Thanks all! Mark, yes I was shooting at 80mm. I actually made a 40mm mask and compared the images on some earlier captures and really could not see a difference so just stopped using it.
Warren
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Re: Disks in WL, CaK and Ha and animation of NW Limb 9/13/2022
Fabulous animation and great stills, Warren. Well done !
Franco
Franco
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Re: Disks in WL, CaK and Ha and animation of NW Limb 9/13/2022
Thanks Franco!
Warren
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Re: Disks in WL, CaK and Ha and animation of NW Limb 9/13/2022
Good session Warren!
Best regards,
Arne
Best regards,
Arne
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Re: Disks in WL, CaK and Ha and animation of NW Limb 9/13/2022
Excellent images, and the animation is great, Warren!
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- rigel123
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Re: Disks in WL, CaK and Ha and animation of NW Limb 9/13/2022
Thanks Arne and Brian!
Warren
Lunt LS60T DS
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Lunt LS60T DS
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Meade ETX LS6
Lunt CaK BF1200
Lunt WL Wedge
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Re: Disks in WL, CaK and Ha and animation of NW Limb 9/13/2022
The loops I barely missed! Thanks for the view(s) Warren,
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Re: Disks in WL, CaK and Ha and animation of NW Limb 9/13/2022
Another great animation and very nice still images, Warren.
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Re: Disks in WL, CaK and Ha and animation of NW Limb 9/13/2022
Nice limb animation Warren. Well done !
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- rigel123
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Re: Disks in WL, CaK and Ha and animation of NW Limb 9/13/2022
Thanks James, Stu and Christian!
Warren
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Lunt LS60T DS
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Lunt CaK BF1200
Lunt WL Wedge
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Re: Disks in WL, CaK and Ha and animation of NW Limb 9/13/2022
Hi Warren. You won't see a difference, you're hugely undersampling with the 174 with CaK full disks at a focal length of 600mm, your actual resolution you will achieve is closer to 20mm (properly sampled). Now i'm not suggesting you make a 20mm aperture stop, but stopping the scope down (40mm if you have a mask of that size) will redude spherical aberation which will reduce softeness (that is what SA does in CaK) in the image. Don't expose the histogram more than about 90% in capture either.
HTH!
Mark
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Re: Disks in WL, CaK and Ha and animation of NW Limb 9/13/2022
Thanks for the input!marktownley wrote: ↑Fri Sep 16, 2022 5:37 amHi Warren. You won't see a difference, you're hugely undersampling with the 174 with CaK full disks at a focal length of 600mm, your actual resolution you will achieve is closer to 20mm (properly sampled). Now i'm not suggesting you make a 20mm aperture stop, but stopping the scope down (40mm if you have a mask of that size) will redude spherical aberation which will reduce softeness (that is what SA does in CaK) in the image. Don't expose the histogram more than about 90% in capture either.
HTH!
Mark
Warren
Lunt LS60T DS
Orion ED80T CF
Meade ETX LS6
Lunt CaK BF1200
Lunt WL Wedge
Baader Photographic Film
ASI174MM
Skyris 236M
Player One Saturn-M SQR
https://www.astrobin.com/users/rigel123/
Lunt LS60T DS
Orion ED80T CF
Meade ETX LS6
Lunt CaK BF1200
Lunt WL Wedge
Baader Photographic Film
ASI174MM
Skyris 236M
Player One Saturn-M SQR
https://www.astrobin.com/users/rigel123/