solar spot images taken on Aug 14 to 17 with the 300 mm solar telescope

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christian viladrich
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solar spot images taken on Aug 14 to 17 with the 300 mm solar telescope

Post by christian viladrich » Mon Aug 29, 2016 11:53 am

Dear All,

Here are a number of solar spots images taken with the 300 mm solar telescope from August 14 to 1 .

To start with, here is the double spot AR2576 on August 14 :
Image

and on August 15 :
Image

Umbral dots are seen in the umbra of the spot, as well as bright dots in the filaments of the penumbra.


Then we have the triplet AR2574, 2475 and 2577 taken on August 14. Note the deformation of the solar granulation in the area of the pores. This is not an effect of the seeing. Indeed, this is the result of the solar magnetic field :
Image

We can note the same deformation at the same place in this image too :

Image

The same group on August 15 :

Image

Image

Then on August 16 in G band (430 nm). Seeing is unfortunately less favourable in this wavelength. But we can note many filigrees, ie. intergranular bright points, for example from the spot on the bottom left side up to the pores above of the top left of the image :

Image

The same group on August 17 :

Image

A very small spot appeared on the Eastern limb on August 15 :

Image

Here in G band (430 nm) on August 16 :
Image

An finally on August 17 :

Image


Best regards


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Re: solar spot images taken on Aug 14 to 17 with the 300 mm solar telescope

Post by GUS » Mon Aug 29, 2016 12:21 pm

Impressive images Christian.



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Re: solar spot images taken on Aug 14 to 17 with the 300 mm solar telescope

Post by robert » Mon Aug 29, 2016 2:56 pm

lovely granulation!
Robert


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Re: solar spot images taken on Aug 14 to 17 with the 300 mm solar telescope

Post by ffellah » Mon Aug 29, 2016 3:16 pm

An amazing set of close-ups !

Franco



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Re: solar spot images taken on Aug 14 to 17 with the 300 mm solar telescope

Post by [whrudey] » Mon Aug 29, 2016 3:23 pm

Hi Christian;

As usual, superb !! Images to strive for.

Bill



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Re: solar spot images taken on Aug 14 to 17 with the 300 mm solar telescope

Post by Ewan » Mon Aug 29, 2016 4:34 pm

Like cracked glaze Christian, super shots.



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Re: solar spot images taken on Aug 14 to 17 with the 300 mm solar telescope

Post by Valery » Mon Aug 29, 2016 6:27 pm

Excellent set of super HR images!

This is already a usual level of resolution and detalization that Christian makes with his 300mm reflector.

With such a seeing, did you ever consider, Christian, to build a 20" solar reflector?

BTW. Do you use Baader Solar film or do you use uncoated mirrors for unwanted heat eliminate?


Valery


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Re: solar spot images taken on Aug 14 to 17 with the 300 mm solar telescope

Post by eroel » Mon Aug 29, 2016 6:37 pm

Christian:
Superb resolution of granulation.
Best regards,
Eric.



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Re: solar spot images taken on Aug 14 to 17 with the 300 mm solar telescope

Post by christian viladrich » Mon Aug 29, 2016 6:38 pm

Thanks to all :-)
Valery, the mirror of the 300 mm is uncoated.
/// Post corrected on Sept 3 : the mirror is uncoated ///

Here is an image of the scope:
Image
Going to a larger diameter would be make things much more difficult to handle.
Last edited by christian viladrich on Sat Sep 03, 2016 9:50 am, edited 1 time in total.


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Re: solar spot images taken on Aug 14 to 17 with the 300 mm solar telescope

Post by cshahar » Mon Aug 29, 2016 7:46 pm

Among the best white light images I have seen taken by an amateur.

-Charles



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Re: solar spot images taken on Aug 14 to 17 with the 300 mm solar telescope

Post by marktownley » Mon Aug 29, 2016 8:03 pm

Stunning images Christian!


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Re: solar spot images taken on Aug 14 to 17 with the 300 mm solar telescope

Post by Derek Klepp » Tue Aug 30, 2016 10:31 am

Beautiful scenery as well.thanks for all the descriptions throughout and the picture of your scope



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Re: solar spot images taken on Aug 14 to 17 with the 300 mm solar telescope

Post by MapleRidge » Tue Aug 30, 2016 11:09 pm

Wow...I'm speechless Christian :bow

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Re: solar spot images taken on Aug 14 to 17 with the 300 mm solar telescope

Post by christian viladrich » Thu Sep 01, 2016 6:22 pm

Thanks guys :-)


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Re: solar spot images taken on Aug 14 to 17 with the 300 mm solar telescope

Post by christian viladrich » Sat Sep 03, 2016 9:47 am

Oops ... I've made an unfortunated typo error in my answering to the question of Valery ... the primary mirror of my 300 mm is uncoated (ie. not coated).


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Co-author of "Astronomie Solaire"
http://www.astronomiesolaire.com/

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Re: solar spot images taken on Aug 14 to 17 with the 300 mm solar telescope

Post by pedro » Sat Sep 03, 2016 10:34 am

Fantastic resolution Christian. Some of the best HR WL images I've seen so far

Can you tell me why you do no attach the SSM to the reflector?



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