AR2192

Standard

Standard warning for non-astronomers:

NEVER look at the sun with your naked eyes, and especially not through any optical instrument (including the viewfinder on a camera) as this will cause permanent blindness.  The photos below were taken with an astronomy observing-grade solar filter – never attempt to make a filter yourself.

AR 2192.  Not a euphonious name; but this is a mummy of a sunspot.  It’s tracking off to the limb of the sun now, and is foreshortened to our viewpoint – I wish I had seen it a couple of days ago when it was facing Earth bang on.  Apparently it only managed to cause a few radio blackouts while delivering its flares, so we got lucky again.

I took out the 5″ scope, the Baader solar filter, a neutral density filter, and my little Canon Powershot.  Taking snaps down the eyepiece is always a question of luck, especially as the scope is not properly collimated, and there was quite a breeze to make everything wobble.  These are the best I could do.

28 Oct full sun

28 Oct detail

I put away the camera and admired the elaborations of this spectacular storm as long as I could stand being under a black hood in full sunlight.  It’s the only kind of astronomical observation in which thermal underwear is not part of the standard kit.

For serious images of this object look at the gallery on the Spaceweather site: http://www.spaceweather.com

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4 responses »

    • The Baader filter is magic – any telescope with one attached would probably show you good detail. Btw I hold you personally responsible that I am now chanting the ear-worm A R 2 1 9 2 A R 2 1 9 2 A R 2 1 9 2 A R 2 1 9 2

    • That’s the curious thing – the sun is invisible for practical purposes because we can’t look at it. We have to deliberately set up a projection or a filter. Or, of course, if one day a whopping flare knocks out all our communications – we’ll notice it then all right.

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