Activity on the absolutely bald sun through a 280mm aperture.

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Valery
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Activity on the absolutely bald sun through a 280mm aperture.

Post by Valery » Sat Feb 10, 2018 11:50 am

Hi all,

Here is an image which I took last fall October 11.
It shows what can be seen on the absolutely bald sun if you look through a large aperture
telescope with narrow enough filter.
The telescope used is Celestron 11 280mm sperture equipped with a full aperture DERF filter
and a very simple etalon - Quark Chromosphere. The image was taken at a slight blue wing shift.

You can see here about a dozen of mini-flares (at least very hot spots) and a few small dark
filaments (small prominences projected at the disk) and numerous spiculaes far from the limb.
All these mini-ative objects are very short living and change very quickly. Very interesting
objects for time lapse imaging.

So, with a telecopes of appropriate size one can hunt for solar active events even during dead
season of the solar activity.



Valery
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Oct-11-2017-09h-26m--C11-Quark-Chr-blue-wing-3clc.jpg
Oct-11-2017-09h-26m--C11-Quark-Chr-blue-wing-3clc.jpg (491.66 KiB) Viewed 109 times
"Solar H alpha activity is the most dynamic and compelling thing you can see in a telescope, so spend accordingly." (c) Bob Yoesle.

Largest full size 185 - 356mm Dielectric Energy Rejection Filters (D-ERF) by ARIES Instruments.

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ffellah
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Re: Activity on the absolutely bald sun through a 280mm aperture.

Post by ffellah » Sat Feb 10, 2018 1:21 pm

A very interesting image, Valery, thank you.

Franco

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Re: Activity on the absolutely bald sun through a 280mm aperture.

Post by marktownley » Sat Feb 10, 2018 3:38 pm

It's very good Valery! I totally agree with you, look close enough and there is always something to see.
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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Montana
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Re: Activity on the absolutely bald sun through a 280mm aperture.

Post by Montana » Sun Feb 11, 2018 11:31 am

Fabulous Valery :bow :hamster: I know you are going to keep us entertained :hamster:
Alexandra

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MapleRidge
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Re: Activity on the absolutely bald sun through a 280mm aperture.

Post by MapleRidge » Sun Feb 11, 2018 11:31 pm

Hi Valery...

You caught a lot of small details, and proved that even when quiet there are features to tempt us.

Well done :bow

Brian
Brian Colville

Maple Ridge Observatory

Cambray, ON Canada

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Carbon60
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Re: Activity on the absolutely bald sun through a 280mm aperture.

Post by Carbon60 » Mon Feb 12, 2018 6:47 am

Nice image, Valery. I'm looking forward to giving my large aperture kit a good run this spring.

Stu.
Lunt LS60THa B1200 PTFT
150mm H-alpha Solar telescope with Lunt35 mod
DMK41, Basler acA1920-155
NEQ6 Pro-mount
Fluxgate Magnetometers (1s and 150s Cadence)
More images at http://www.flickr.com/photos/solarcarbon60/

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