AR2786 & AR2785 and Proms | Nov 24th 2020

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MalVeauX
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AR2786 & AR2785 and Proms | Nov 24th 2020

Post by MalVeauX »

Hey all,

AR2786 is still kicking up some great dust, well, plasma! Lots of surge prominences going on and some minor flaring, and some new proms have developed around the eastern limb. AR2785 is still towing it along and making a great pair. You can see AR2786's companion pore trailing it ever so slightly in the photosphere, looks like a neat dipole. Seeing was average to poor, was around 1.1 to 1.6 arc-seconds all morning unfortunately, so stayed in the 120mm aperture range. Wasn't able to get calcium at this scale in this seeing conditions unfortunately, had to stay in the red ranges. AR2786 has some gnarly plasma fingers going into it's nice big spot with a great big penumbra.

B&W:

Image

Image

Image

Color:

Image

Image

Image

Seeing Conditions:
Seeing_Conditions_11242020.jpg
Seeing_Conditions_11242020.jpg (103.84 KiB) Viewed 663 times
Equipment:

120mm F10 Refractor
Baader Red CCD-IR Block Filter (Internal 2" D-ERF)
PST Etalon + 10mm HA BF (HA) + ASI290MM camera
10mm HA BF (WL) + ASI290MM camera
Solar_setup_11242020.jpg
Solar_setup_11242020.jpg (80.44 KiB) Viewed 663 times
Very best,


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Re: AR2786 & AR2785 and Proms | Nov 24th 2020

Post by Carbon60 »

Beautiful images, Marty. It’s an impressive sight.

Stu.


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Re: AR2786 & AR2785 and Proms | Nov 24th 2020

Post by rsfoto »

Hi Marty,

Excellent images.


regards Rainer

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Re: AR2786 & AR2785 and Proms | Nov 24th 2020

Post by dhkaiser »

Marty, your poor seeing is my every day seeing. Lots of action in your images, thanks.


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Re: AR2786 & AR2785 and Proms | Nov 24th 2020

Post by EGRAY_OBSERVATORY »

Fabulous set of images Marty.

Thanks for sharing.

Terry


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Re: AR2786 & AR2785 and Proms | Nov 24th 2020

Post by eroel »

Marty:
Super images.
Best regards.
Eric.


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Re: AR2786 & AR2785 and Proms | Nov 24th 2020

Post by DeepSolar64 »

The 4th and sixth images at first glance look like WL images but I noticed differences like the small bright spots around the sunspots, Ellerman bombs maybe which told me you are probably in the blue wing of hydrogen-alpha. Then I noticed the 656nm wavelength in your text confirming this. Nice capture Marty. I have never seen Ha capture spots quite this well!

James


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Re: AR2786 & AR2785 and Proms | Nov 24th 2020

Post by MalVeauX »

DeepSolar64 wrote: Wed Nov 25, 2020 6:31 am The 4th and sixth images at first glance look like WL images but I noticed differences like the small bright spots around the sunspots, Ellerman bombs maybe which told me you are probably in the blue wing of hydrogen-alpha. Then I noticed the 656nm wavelength in your text confirming this. Nice capture Marty. I have never seen Ha capture spots quite this well!

James
Hi James,

They're mostly continuum in the image, but they were captured using just my 10mm HA blocking filter (5~7A bandpass, centered on 656nm). When I raise shadows hard, I can see spicules and proms on the limb, but very faint. Anyhow, this is the result of the blocking filter without an etalon, so basically a narrow HA filter but not narrow enough to stop out the light of the photosphere, so some features are gently merging.

Very best,


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Re: AR2786 & AR2785 and Proms | Nov 24th 2020

Post by ffellah »

Marty: these came out really well, beautiful detail showing.

Franco


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Re: AR2786 & AR2785 and Proms | Nov 24th 2020

Post by Lowjiber »

Stunning images, Marty! Thanks for the shares.:)

Clear Skies


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Re: AR2786 & AR2785 and Proms | Nov 24th 2020

Post by Montana »

I really like the first picture, so much activity and like a giant whirlpool :hamster: :bow does the pseudo WL need a vertical flip though?

Alexandra


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Re: AR2786 & AR2785 and Proms | Nov 24th 2020

Post by DeepSolar64 »

MalVeauX wrote: Wed Nov 25, 2020 11:17 am
DeepSolar64 wrote: Wed Nov 25, 2020 6:31 am The 4th and sixth images at first glance look like WL images but I noticed differences like the small bright spots around the sunspots, Ellerman bombs maybe which told me you are probably in the blue wing of hydrogen-alpha. Then I noticed the 656nm wavelength in your text confirming this. Nice capture Marty. I have never seen Ha capture spots quite this well!

James
Hi James,

They're mostly continuum in the image, but they were captured using just my 10mm HA blocking filter (5~7A bandpass, centered on 656nm). When I raise shadows hard, I can see spicules and proms on the limb, but very faint. Anyhow, this is the result of the blocking filter without an etalon, so basically a narrow HA filter but not narrow enough to stop out the light of the photosphere, so some features are gently merging.

Very best,
Does it require any kind of filter before it like an ERF at the objective or a ND filter at the eyepiece? Would this work visually?


Lunt 8x32 SUNoculars
Orion 70mm Solar Telescope
Celestron AstroMaster Alt/Az Mount
Meade Coronado SolarMax II 60 DS
Meade Coronado SolarMax II 90 DS
Meade Coronado AZS Alt/Az Mount
Astro-Tech AT72EDII with Altair solar wedge
Celestron NexStar 102GT with Altair solar wedge
Losmandy AZ8 Alt/Az Mount
Sky-Watcher AZGTI Alt-Az GoTo mount
Cameras: ZWO ASI178MM, PGR Grasshopper, PGR Flea
Lunt, Coronado, TeleVue, Orion and Meade eyepieces

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