Active Region 1089 has grown so large, that it appears this sunspot is now a naked-eye object (through suitable solar protective screening.) See this image from the 7-22 Spaceweather.com edition. http://spaceweather.com/swpod2010/22jul10/Gil-Esquerdo1.jpg AR1089 should make for good solar viewing at the 7-24-2010 SLAS Sun Party. Clear Skies - Kurt
It's a nice "double spot" complex in the 50mm f/9 at 16X, but not quite naked-eye, at least for this observer, using Baader mylar and a 25% transmission moon filter together. On 7/22/10, Canopus56 <canopus56@yahoo.com> wrote:
Active Region 1089 has grown so large, that it appears this sunspot is now a naked-eye object (through suitable solar protective screening.)
I just tried with a #14 welding filter. "Hints of suspicion" but nothing for sure. patrick On 23 Jul 2010, at 17:20 , Chuck Hards wrote:
It's a nice "double spot" complex in the 50mm f/9 at 16X, but not quite naked-eye, at least for this observer, using Baader mylar and a 25% transmission moon filter together.
On 7/22/10, Canopus56 <canopus56@yahoo.com> wrote:
Active Region 1089 has grown so large, that it appears this sunspot is now a naked-eye object (through suitable solar protective screening.)
I would suggest that folks try to see it naked-eye (with proper filtration) BEFORE looking through the telescope or on-line. Knowing where it is in advance gives the brain too much opportunity to conjure it up. Either it's truly naked-eye, or it's not, in my book. An object that's just barely detected by 10% of the population doesn't qualify. BTW, Baader mylar is not dark enough for naked-eye use, IMO. I always couple it with a neutral density filter of either 13% or 25% transmission. The 25% seems about right, most of the time. YMMV. That said, it IS a terrific little sunspot group. :o) On 7/23/10, Patrick <paw@wirelessbeehive.com> wrote:
I just tried with a #14 welding filter. "Hints of suspicion" but nothing for sure.
participants (3)
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Canopus56 -
Chuck Hards -
Patrick