Today's Proms, HA, Sept 24th 2018

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MalVeauX
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Today's Proms, HA, Sept 24th 2018

Post by MalVeauX » Mon Sep 24, 2018 2:46 pm

Heya,

Some interesting proms on the limb this morning. Clear sky and decent seeing. Fall is approaching I suppose! Pointed my 120mm F8 refractor with a Quark at these ones.

I think in general my 6" F8 just can't take the thermal load with currents in the tube with only the internal 50mm UV/IR cut filter near the focuser. I think it would need to be a much bigger real ERF near the objective, or a full aperture one in front of the object. So for now, I took my 6" scope down and went back to the 120mm and the difference is significant in terms of thermal handling which was really killing my seeing. So with the 120mm, I'm back to imaging at 4200mm focal length, around F35 with the Quark. I don't think I'm going to try to refit my 150mm F8 with a bigger ERF for now as I want to instead put those funds towards an 8" objective in the future and a full aperture ERF for that, just trying to decide on what telescope design at this point (refractor vs SCT vs reflector) for the setup eventually.

Anyhow, today's proms:

Image

Image

Image

Image

Image

Image
setup_solar_09242018.jpg
120mm F8 Frac + Quark
setup_solar_09242018.jpg (112.07 KiB) Viewed 259 times
Very best,

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rsfoto
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Re: Today's Proms, HA, Sept 24th 2018

Post by rsfoto » Mon Sep 24, 2018 6:46 pm

Hi Marty,

Excellent results. In 4 weeks I will be permanently at the observatory and hope also to get such good results with my Quark. At the moment I have had only clouds clouds and clouds ...

regards Rainer
regards Rainer

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Re: Today's Proms, HA, Sept 24th 2018

Post by marktownley » Mon Sep 24, 2018 7:13 pm

Great images! Seeing is everything.
Image
http://brierleyhillsolar.blogspot.co.uk/
Solar images, a collection of all the most up to date live solar data on the web, imaging & processing tutorials - please take a look!

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Re: Today's Proms, HA, Sept 24th 2018

Post by ffellah » Mon Sep 24, 2018 8:19 pm

Very nice prom work, Marty !

Franco

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Re: Today's Proms, HA, Sept 24th 2018

Post by Montana » Tue Sep 25, 2018 7:22 am

Absolutely superb! lovely crisp proms and a beautiful spicule field :bow

Alexandra

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Re: Today's Proms, HA, Sept 24th 2018

Post by Derek Klepp » Tue Sep 25, 2018 7:40 am

Thanks Marty.Yes seeing is a tester I often find at my site 100mm of aperture is the limit and rarely can I use my 150mm Mod.

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Re: Today's Proms, HA, Sept 24th 2018

Post by MalVeauX » Tue Sep 25, 2018 11:57 am

Thanks all, :bow

Very best,

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Re: Today's Proms, HA, Sept 24th 2018

Post by eroel » Tue Sep 25, 2018 2:53 pm

Marty:
Super proms.
Best regards,
Eric.

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