Today's SUN (20210222) | LUNT152 images

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Today's SUN (20210222) | LUNT152 images

Post by pedro » Mon Feb 22, 2021 8:39 pm

Today's SUN (20210222) | LUNT152 images

WEB LINK:
http://pedroreastrophotography.com/sun_ ... 21-02.html

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IMAGING SETUPS

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IMAGING SETUPS

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IMAGING SETUPS

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IMAGING SETUPS

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IMAGING SETUPS

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IMAGING SETUPS

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IMAGING SETUPS

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SUN (20210222) H-alpha (10:00 UTC). LUNT152, SM90II, BF30, PGR GRASSHOPPER 3 GS3-U3-28S5M, two-pane mosaic

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SUN (20210222) H-alpha (10:00 UTC). LUNT152, SM60, BF30, PGR GRASSHOPPER 3 GS3-U3-28S5M, two-pane mosaic

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SUN (20210222) H-alpha PROMS (10:00 UTC). LUNT152, BF30, X2 Barlow (@X1.4), PGR GRASSHOPPER 3 GS3-U3-28S5M

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SUN (20210222) H-alpha (10:00 UTC). LUNT152, BF30, X2 Barlow (@X1.4), PGR GRASSHOPPER 3 GS3-U3-28S5M

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SUN (20210222) H-alpha PROMS (09:30 UTC). LUNT60, BF30, PGR GRASSHOPPER 3 GS3-U3-28S4M

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SUN (20210222) H-alpha PROMS (09:30 UTC). TV101 F/5.4, SM60, BF30, PGR GRASSHOPPER 3 GS3-U3-28S4M

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SUN (20210222) CaK PROMS (09:30 UTC). TV101 F/5.4, LUNT 1200 CaK Module, PGR GRASSHOPPER 3 GS3-U3-28S4M

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SUN (20210222) WL, CaK & H-alpha (09:30 UTC). TV101 F/5.4, LUNT 1200 CaK Module, SM60, BF30, PGR GRASSHOPPER 3 GS3-U3-28S4



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Re: Today's SUN (20210222) | LUNT152 images

Post by marktownley » Mon Feb 22, 2021 8:43 pm

A great set Pedro! There's that badly behaved SM90ii again ;)


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Re: Today's SUN (20210222) | LUNT152 images

Post by Stardust5858 » Mon Feb 22, 2021 8:59 pm

Great captures Pedro, thanks for sharing.


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Re: Today's SUN (20210222) | LUNT152 images

Post by dhkaiser » Mon Feb 22, 2021 9:11 pm

Well done Pedro.


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Re: Today's SUN (20210222) | LUNT152 images

Post by justapictureposter » Mon Feb 22, 2021 10:02 pm

have you tried an experiment with a different blocking filter on your Sm90II. From my experience with coronado parts, they are truly reliant on this factor. If your blocking filter is not matched to the etalon you get exactly this problem.

How does your BF30 look when you point it at a white lamp?


Here are three examples of coronado blockers.

pst BF5 red
coronado bf5 red.jpg
coronado bf5 red.jpg (41.09 KiB) Viewed 216 times

pst bf5 orange
coronado bf5 orange.jpg
coronado bf5 orange.jpg (29.65 KiB) Viewed 216 times

coronado BF15 dark orange
coronado bf15 orange.jpg
coronado bf15 orange.jpg (23.98 KiB) Viewed 216 times



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Re: Today's SUN (20210222) | LUNT152 images

Post by EGRAY_OBSERVATORY » Mon Feb 22, 2021 10:04 pm

Excellent set of images and presentation Pedro.

Thanks vm for sharing
Terry



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Re: Today's SUN (20210222) | LUNT152 images

Post by pedro » Mon Feb 22, 2021 11:51 pm

I have a BF15 that was matched to the SM90II by Oliver Smie (Beloptik). I used the BF30 today though



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Re: Today's SUN (20210222) | LUNT152 images

Post by ffellah » Tue Feb 23, 2021 1:14 am

A great series, Pedro, but the large prom is the money shot today.

Franco :bow



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Re: Today's SUN (20210222) | LUNT152 images

Post by MapleRidge » Tue Feb 23, 2021 3:43 am

As always, a treat to see your excellent images Pedro...well done :bow

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Re: Today's SUN (20210222) | LUNT152 images

Post by DeepSolar64 » Tue Feb 23, 2021 6:06 am

They all look great to me. Including the one through the SMII90 etalon. Pedro, that's the one you had Meade to work on and had someone else to work on as well, right? I remember you mentioning it in the Zoom meeting.

You probably have more of a discerning eye than I do.

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Re: Today's SUN (20210222) | LUNT152 images

Post by pedro » Tue Feb 23, 2021 8:33 am

Thanks again guys

The SM90II was sent twice to the Meade factory and once to Oliver Smie (Beloptik). According to Oliver it is now on band but it still lacks contrast and definition. I guess it is still OK for visual though



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Re: Today's SUN (20210222) | LUNT152 images

Post by Montana » Tue Feb 23, 2021 9:04 am

Wow!! the huge prominence is a beauty :hamster: :bow a great set Pedro apart from the SM90, it is so off band you can't even see the AR in the south, that is more than a little 'lacking contrast' ;)

Alexandra



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Re: Today's SUN (20210222) | LUNT152 images

Post by pedro » Tue Feb 23, 2021 10:09 am

I agree Alexandra

I will use it from now on only for double stacking

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SUN (20201226) H-alpha. LUNT152, DS SM90II, BF30, PGR GRASSHOPPER 3 GS3-U3-28S4M - example with bad seeing

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SUN (20201217) H-alpha. LUNT152, SS/DS SM90II, BF30, PGR GRASSHOPPER 3 GS3-U3-28S4M - again with bad seeing



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Re: Today's SUN (20210222) | LUNT152 images

Post by marktownley » Tue Feb 23, 2021 8:17 pm

It definitely works well with the 152 as a double stack, but as a single stack that 90 is not on band, regardless of what Oliver says. Still, at least you know it does have a use in double stack mode, not quite a complete paperweight...


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