AR2741 & AR2740, Large Prominence | HA & CaK | May 14th 2019

this is the main message area for anything solar :)
Post Reply
User avatar
MalVeauX
Way More Fun to Share It!!
Way More Fun to Share It!!
Posts: 1858
Joined: Tue May 09, 2017 7:58 pm
Location: Florida
Has thanked: 1171 times
Been thanked: 1360 times

AR2741 & AR2740, Large Prominence | HA & CaK | May 14th 2019

Post by MalVeauX »

Heya,

I had a strange day, where I went to work this morning for a little bit fully expecting bad weather per the report. On the way back home, it was suspiciously clear out. I carried on, ran some errands, etc, and it was still suspiciously clear. I just knew, the moment I even thought about taking a look, the clouds would roll in and it would storm. I'm convinced that the weather lords here in Florida definitely have something against my prying eyes into the sky. I tempted fate and went home. I peaked from the observatory, still no clouds. I got everything going and the seeing was just dreadful for my 8" options, I evaluated them a while until I was convinced there was no option to go 8" today. I was going to image at small scale and call it a day, thankful for a fairly clear sky still. Yet, still no clouds! So, I put my old 120mm F8 achromat on the saddle and let it take a look. Seeing supported this aperture nicely, so I figured, let's roll with it and see what happens. AR2741 was beautiful! And the large hedge prominence on the limb was just exploding with detail and was so wispy and full of strands. I grabbed data at two scales, to compare 80mm to 120mm in the same conditions.

B&W:

Image

Image

Image

Image

Image

Colored:

Image

Image

Image

Image

Image

Alternatives:

Image

Image

Image

Image

Image

Image

Image

Image

Equipment:

Celestron Omni XLT 120mm F8.3 Achromat + Baader UV/IR Block Filter
Quark Chromosphere + 0.5x focal reducer + IMX174 (HA larger scale)

ST80 + Baader UV/IR Block Filter
Quark Chromosphere + IMX174 (HA smaller scale)

ST80 + Baader Blue CCD-IR Block Filter
PST CaK Filter + 2nd ERF + 3x Barlow + IMX174 (CaK)
Solarsetup_120mmF8_05142019.jpg
Solarsetup_120mmF8_05142019.jpg (51.34 KiB) Viewed 1312 times
Very best,


RodAstro
Im an EXPERT!
Im an EXPERT!
Posts: 385
Joined: Sun Oct 29, 2017 9:51 pm
Has thanked: 286 times
Been thanked: 399 times

Re: AR2741 & AR2740, Large Prominence | HA & CaK | May 14th 2019

Post by RodAstro »

Hi lovely images
The prom was very nice today I spent quite a while viewing it visually.

Rod


User avatar
p_zetner
Way More Fun to Share It!!
Way More Fun to Share It!!
Posts: 1644
Joined: Sun Mar 18, 2012 4:59 pm
Location: Winnipeg, Manitoba, Canada
Has thanked: 166 times
Been thanked: 719 times

Re: AR2741 & AR2740, Large Prominence | HA & CaK | May 14th 2019

Post by p_zetner »

Lovely set, Marty.
Lots of detail in the closeup even though it’s “only” 120mm aperture!
Cheers.
Peter


User avatar
Montana
Librarian
Librarian
Posts: 34563
Joined: Mon Oct 17, 2011 5:25 pm
Location: Cheshire, UK
Has thanked: 17672 times
Been thanked: 8793 times

Re: AR2741 & AR2740, Large Prominence | HA & CaK | May 14th 2019

Post by Montana »

These are gorgeous Marty :bow
Your story did make me smile though, so I am not the only one who does that then :lol: This happened to me on Sunday, forecast was clear blue all day. Started setting up, clear blue. Got everything just right and put my eye to the lens, darkness, where was the sun? looked up and a sky full of clouds. Where on earth did they appear from in 30 seconds? Thankfully after half hour of swearing they went away ;)

Alexandra


User avatar
ffellah
Way More Fun to Share It!!
Way More Fun to Share It!!
Posts: 11172
Joined: Mon Oct 27, 2014 6:46 pm
Location: Westport, CT USA
Has thanked: 9145 times
Been thanked: 6026 times

Re: AR2741 & AR2740, Large Prominence | HA & CaK | May 14th 2019

Post by ffellah »

A great set, Marty ! All great but I particularly like #4, very fine detail in it...

Franco


User avatar
marktownley
Librarian
Librarian
Posts: 42274
Joined: Tue Oct 18, 2011 5:27 pm
Location: Brierley Hills, UK
Has thanked: 20442 times
Been thanked: 10248 times
Contact:

Re: AR2741 & AR2740, Large Prominence | HA & CaK | May 14th 2019

Post by marktownley »

Top set of images there Marty!


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!
Post Reply