Sunday, 20 July 2014

AR12119 A New Spot Is Born

Yesterday there was very little happening on the face of our star, however today we have sunspot genesis as AR12119 shows signs of being an emerging flux region.  The umbra and penumbra of the spot have certainly developed in 24 hours.  The seeing wasn't too bad and I was able to shoot this image at 1200mm focal length, or f30 with the workhorse 40mm.  I think i'm pretty much at the limit of what the demure 1.6" objective can resolve, and it days like this when a 60mm running at f20 would be better than a 40mm running at f30.  I'm playing cat and mouse with the clouds this afternoon, but hopefully should manage some more images as the afternoon goes on.