AR12816 in Ha 23rd April 2021

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Carbon60
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AR12816 in Ha 23rd April 2021

Post by Carbon60 »

I tried my RCT Hydrogen alpha rig on AR12816 this morning.

The conditions were not really up to the job, but the result isn't a total disaster and it gave me an opportunity to get more time/experience with this setup. It took quite a bit of tweaking to get a pretty even field with uniform illumination and tuning.

Unlike yesterday, there were no flares at the time I was making my observations.

250mm RCT
Lunt 35 Etalon
Basler acA1920-155um
1.5x Barlow

Presented here in mono and colour

Image20210423_RCT_Ha_AR12816_Mono by Stuart Green, on Flickr

Image20210423_RCT_Ha_AR12816_Colour by Stuart Green, on Flickr

I can only wish for excellent seeing.

Thanks for looking.

Stu
Last edited by Carbon60 on Fri Apr 23, 2021 7:50 pm, edited 2 times in total.


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Re: AR12816 in Ha 23rd April 2021

Post by EGRAY_OBSERVATORY »

Today here Stu, the sky was as clear as those south of the Mediterranean, so shame yours was not so good.

But you have still captured an excellent image and the colouring is also excellent.

Thanks for sharing
Terry


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Re: AR12816 in Ha 23rd April 2021

Post by DeepSolar64 »

Looks good Stuart!


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Re: AR12816 in Ha 23rd April 2021

Post by MAURITS »

A very nice result Stu.


Regards,
Maurits

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Re: AR12816 in Ha 23rd April 2021

Post by ffellah »

I love the picture Stu. Nice Job ! This set up is very promising...

Franco


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Re: AR12816 in Ha 23rd April 2021

Post by Carbon60 »

Many thanks, guys. Looking at the raw data, I was surprised that I got what I did. The seeing at this aperture was really awful.

Stu.


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Re: AR12816 in Ha 23rd April 2021

Post by marktownley »

These are impressive Stu! I'm toying with the idea of ditching the HaT and getting a 6" frac instead, I think I will get more use and a frac won't be anywhere near as much high maintenance sensitive as a SCT...


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Re: AR12816 in Ha 23rd April 2021

Post by Carbon60 »

marktownley wrote: Sat Apr 24, 2021 10:55 am These are impressive Stu! I'm toying with the idea of ditching the HaT and getting a 6" frac instead, I think I will get more use and a frac won't be anywhere near as much high maintenance sensitive as a SCT...
I know exactly what you mean, Mark. Outings with the RCT are really too few and far between. I get much more use out of the 150.

Stu


H-alpha, WL and Ca II K imaging kit for various image scales.
Fluxgate Magnetometers (1s and 150s Cadence).
Radio meteor detector.
More images at http://www.flickr.com/photos/solarcarbon60/
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