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Re: OT:Sunspots

Posted by tommy-2 on Aug 25, 2017; 12:17pm
URL: http://elecraft.85.s1.nabble.com/OT-Sunspots-tp7633738p7633751.html

   Hi Fred,

     Yup, I did the Sunspot counts daily for the AAVSO for 8 years a
long time ago. It was nice to see a few groups during the eclipse! The
"K" factor is an individual observer's factor that takes account of
experience of the observer. See:
https://www.aavso.org/dances-wolfs-short-history-sunspot-indices

73!

Tom - KB2SMS

KX2 #01927


On 08/24/2017 11:11 PM, Fred Jensen wrote:

> FWIW: Counting sunspots is a fairly arcane diversion.  The generally
> accepted [although by no means universally] is the Wolf Number,
> Wn=k(10g+s), where g denotes the number of groups [sunspots tend to
> come in groups, not always individually discernible], s denotes the
> number of individual spots, again somewhat hard to discern, and k is
> an "observatory factor", which appears to be much like Einstein's
> Cosmological Constant, and can take on any value that makes the data
> work as you wish it to.  If you see spots, and they are at high solar
> latitudes, this augurs well, they may be Cycle 25. If they're on the
> solar equator, probably just part of Cycle 24.
>
> All that said, right now there aren't very many G's or S's, and k
> could be zero for all we know.  I am currently at the point where
> living to the Cycle 25 maximum is an immediate goal. [:-)
>
> 73,
>
> Fred ["Skip"] K6DGW
> Sparks NV DM09dn
> Washoe County
>
> On 8/24/2017 3:29 PM, Doug Person wrote:
>> Sadly, I can only see 3 sunspots today. Down from 6 at the beginning
>> of the week.
>>
>> Doug -- K0DXV
>
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