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Old 09-08-2015, 01:02 PM
julianh72 (Julian)
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Join Date: Jan 2014
Location: Kelvin Grove
Posts: 1,301
Huge sun spot AR2396

I just put my solar filter onto my telescope to take a look - and there's a HUGE sunspot right now.

NOTE: DON'T ATTEMPT THIS IF YOU DON'T HAVE A PROPER SOLAR FILTER!!!!!

The attached quick photo was taken hand-held with my phone held at the eyepiece.

Checked on http://www.spaceweather.com/ and - Yep! It's big alright!

BIG SUNSPOT FACES EARTH:
The rapid growth of sunspot AR2396 is continuing. Yesterday it was huge. Today it is 50% larger.
...
The growing sunspot group stretches more than 150,000 km from end to end. All by itself, the primary dark core is more than three times the size of Earth.
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