[AZ-Observing] Re: 486 & 488

Stanley A. Gorodenski wrote:

>Yesterday I saw what I believe is 486 (the last periods designation)
>just making its appearance around the limb. Today more of the group is
>visible and it does not appear overly large to me. I did not observe it
>when it first appeared and so I have no idea if it has reduced in size.
>I also see a lot of faculae around it that I do not recall seeing around
>488 when I observed 488 yesterday. Yesterday 488 was at about the same
>location relative to the limb of the sun that 486 is today.
>
>On a related issue, during the last partial solar eclipse we had in
>Arizona I was observing it through my telescope to see the silhouette of
>the lunar mountains against the sun. I am using a Thousand Oaks filter
>in their aluminum ring. I have a full aperture filter rather than one
>that is off to one side. One thing that I noticed was that I started
>getting thermals from, I think, the aluminum ring that was affecting the
>image the longer I observed the sun. Has anyone experienced this? If so,
>what do you use to prevent it, white titanium dioxide paint over the
>aluminum ring?
>
>Stan

Thanks Stan! You inspired me to go out and look at the Sun with my 
C-8. I too use a full aperture filter. It's an old Celestron mylar 
filter, but works well.

It was a treat. At 100X the three major sets of spots were very 
detailed. Near the center is 481/501. I was impressed with the looks. 
The dark area was in fine contrast and looked like an island. To the 
side 486/507 is larger and equally impressive. Below that is a 
smaller group 488/506/508.

I think the teat this weekend at the star party may be one of auroras.

Jeff
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