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In about two weeks (March 20th) we are gonna witness a total solar eclipse. It is not gonna be total where I am, but 80~90% of the Sun will be covered by the Moon. Another one like that here in Europe will be in 20 years.

In preparation for the eclipse I got myself some solar filters to be able to observe it. I got this inexpensive Baader glasses for me and a simple 8″ filter for my telescope. And since there is a nice weather outside, I went to test my new filters.

Those solar filters are ND 5 and transmits only 1/100,000 of the sunlight.


Sun and a sunspot
Celestron AVX 8″ SCT
Filter: Baader Astro-Solar Folio ND5 C8
Focal Length: 1278 mm
Aperture: f/6.3
ISO: 640
Shutter: 1/800s
Exposure: 1000 frames
Post processing: RegiStax 6, Pixinsight
Taken Mar 03, 2015 around 13:18 CET

My first trial of a solar imaging I was not very sure how it should be done. So I tried many different ways and got my first results. I was lucky to catch a nice sunspot.

Also post-processing was a mystery to me so i just did some basic processing. Not the best of works, but it was quite nice. Will try to edit in different ways later.

But I was surprised to be able to see some texture in the sun with this filter. It is not a H alpha filter, only a simple folio filter but already is possible to see nice textures. Now, waiting for a good weather on March 20th to be able to take some eclipse pictures =D