Sunspot NOAA 11087 in Detail

Blogged by Xiao Sun on July 21, 2010 and tagged with Sample Images, Mosaic, Sun.

This is an amazing picture of the Sunspot NOAA 11087. It is a combination of two mosaics. The author is Dr. Bernhard Christ, a German amateur astronomer based in Rüsselsheim, Germany. The original image is as large as 2000 x 2123 pixels. You can open it by clicking on the preview version below.

Sunspot NOAA 11087

Here is another picture of the current Sunspot NOAA 11087 which I took again with my DMK 31AF03.AS (2010-07-16 15-02-36 CEST). Optic was a 90/1000mm refractor adopted to the standard-PST. I used ocular projection (15mm ocular) and also an UV/IR-cut filter. Two AVI files were treated in Registaxand finished in PS Elements to give the mosaic, which best will be looked atfrom a distance.

Thank you Dr. Christ. What a picture!