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George
2012-Jun-03, 08:47 PM
Anyone know of a good site that shows the latest sunpots with their respective solar coordinates? I am trying to get a good idea how Venus will track in relation to the sunspots.

Also, I am trying to get a picture how the 7 deg. swing of the Sun's axis relative to the ecliptic plays a roll here. It seems that the solar axis is perpendicular to us, essentially, in June, so would I rotate the solar disc 7 deg. clockwise in relation to the ecliptic?

Thanks.

Tensor
2012-Jun-03, 08:55 PM
This (http://www.solen.info/solar/) should do nicely, George. This changes every day at midnight.

Tobin Dax
2012-Jun-03, 09:34 PM
SOHO has some pictures without coordinates, but some of them are near real time. The links on SOHO's sunspots page (http://sohowww.nascom.nasa.gov/sunspots/) might also be useful. I honestly haven't visited them yet.

George
2012-Jun-03, 09:41 PM
Thanks, Tensor. That is a nice site, but...

where are these spots in realtion to the ecliptic?

Here (http://sidc.oma.be/uset/video.php) is a site that show an animation of the photosphere for the last 25 days. It looks to me that the solar axis would be closer to 2x the 7 deg. inclination with the ecliptic.

So I'm still puzzled.

George
2012-Jun-03, 09:44 PM
SOHO has some pictures without coordinates, but some of them are near real time. The links on SOHO's sunspots page (http://sohowww.nascom.nasa.gov/sunspots/) might also be useful. I honestly haven't visited them yet.

Yep, but I have tried a number of popular solar sites including Stanford, SOHO, Belgium Royal Obs. [I thought for sure one of these would show the coordinates.]

I can use Starry Night Pro to see the Sun's orientation in the sky relative to the ecliptic, but I want to know be able to guess where the latest sunspot groups will be relative to the transit.

George
2012-Jun-04, 02:18 AM
I think this (http://eclipse.gsfc.nasa.gov/OH/tran/TOV2012-Fig02.pdf) will work fine since it shows the ecliptic along with the transit. The solar would be tilted about 7 deg. counterclockwise from our view relative to the ecliptic.

If you stumble across any coordinate mapping of current sunspots, please let me know.