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Hello I'm New to Solar Viewing/Imaging


RayGil

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I thought there were small prominences on the Limb, perhaps they are something else? Looking as a clock face, 1,2 & 3 oclock positions, or are they loose pixels?

I am unsure.

Ray

:)

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Ray, as you're using a Neximage... are the images stacks ? If so that could be stacking artefacts... I'm yet to manage to get more than 100 frames on my NexStar 60 SLT...

Very good set of images though.

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Thanks for the comments, yes that main image is stacked from a batch of 356 frames, but I manually choose the frames as the mount does not track as acurate as I would like. I have an EQ2 mount with RA clock drive which may give better reseults.

"If so that could be stacking artefacts"

Well pointed out, Never thought of this, I will check the frames to see if I have one or 2 just showing that section.

Again thank you, appreciate the comments, and yes a nice shiny filter for the CCD would be nice and a possibility!

Imaging the Sun has put a new aspect on the Hobby, and has thrown up very intriging challenges.

Ray -

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Ray.... The images should really go in the imaging section, I've moved the thread over, if you enclose the URL in img tags...

[ img ] url... [ /img ]

without the spaces between the [ ] and the text, the images will embed in the post.

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Andy,

No.

The DSO Ha filters are pretty well suited for nebulae etc and have a bandwidth of 10nm; you need a MINIMUM of 0.1nm (1A) to be able to resolve the Ha line in the Sun. This tight bandwidth ( and stable performance) is why the pricing of the solar Ha filters are so high.

It needs a precision Fabry-Perot etalon to achive good results.

A light green or Baader continuum filter will increase the surface resolution in white light.

Ken

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Andy,

No.

The DSO Ha filters are pretty well suited for nebulae etc and have a bandwidth of 10nm; you need a MINIMUM of 0.1nm (1A) to be able to resolve the Ha line in the Sun. This tight bandwidth ( and stable performance) is why the pricing of the solar Ha filters are so high.

It needs a precision Fabry-Perot etalon to achive good results.

Ken

That's just what I thought, but wasn't sure I hadn't missed a late new development there!

Ant

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