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The Sun 9-29-12

Started by jameslbrown, 10/10/2012 03:57AM
Posted 10/10/2012 03:57AM | Edited 10/10/2012 04:02AM Opening Post
Hi all:

The attached is our Sun in Ha light on September 29, 2012. In this version, the Solar disk is "normal" and the prominences and sky background are inverted. Inverting either the disk or the proms looks better to my eye since this technique helps the filaments and proms match up, more or less. I think I like this orientation better than the other way around, but I'm not sure, you'll have to let me know what you think. (See the post immediately below.)

I used about 15 of 20 sub-frames in Registax for each of the disk and prom images.

A full resolution version is available here:

http://home.comcast.net/~jameslbrown/pwpimages/final%202%20crop%20full%20res.jpg

My gear for solar is:

80 mm telescope, home assembled using an f7 WO lens, StellarVue tube and Moonlight focuser;
Solar Spectrum Ha filter kit with Baader Cool DERF energy rejection filter and Baader 4x telecentric lens;
Finger Lakes Instruments Microline ML 11002M camera;
Maxim DL for capture and Registax plus Photoshop for processing.

Thanks for looking and commenting, Jim

Attached Image:

jameslbrown's attachment for post 56471
Posted 10/10/2012 04:00AM #1
Here is the same image with the disk inverted and the proms and background normal. I like the filaments better with the disk inverted, but the white sunspots bug me...

Here is the full res version:

http://home.comcast.net/~jameslbrown/pwpimages/final%201%20crop%20full%20res.jpg

Jim

Attached Image:

jameslbrown's attachment for post 145694