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Solar Analemma. This outstanding image from Alexandra Hart taken over a period of 4 years charts the midday position of the sun in the sky throughout the year. The north–south component of the analemma results from the change in the Sun's declination due to the tilt of Earth's axis of rotation. The east–west component results from the nonuniform rate of change of the Sun's right ascension, governed by combined effects of Earth's axial tilt and orbital eccentricity.

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ASTRO IIDC Yahoo List Archive

This is the new home of the ASTRO IIDC user group previously on Yahoo Lists.
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ASTRO IIDC Yahoo List Archive

Post by solarchat » Sat Dec 07, 2019 1:14 am

Screen Shot 2019-12-06 at 8.18.28 PM.png
Screen Shot 2019-12-06 at 8.18.28 PM.png (682.63 KiB) Viewed 374 times

Welcome to the repository for all of the Yahoo List posts on the ASTRO IIDC forum

Click here ... itory.html

to go to a searchable web page where you can look up anything from past posts in the Yahoo List. Then you can copy and paste here into a new post or just make new posts here on your own.
Stephen W. Ramsden
Atlanta, GA USA
Founder/Director Charlie Bates Solar Astronomy Project

Milton Aupperle
The Sun?
The Sun?
Posts: 1
Joined: Sat Dec 07, 2019 2:09 am

Re: ASTRO IIDC Yahoo List Archive

Post by Milton Aupperle » Sat Dec 07, 2019 4:22 am

Thanks Stephen. Hopefully people will migrate from the old Astro IIDC Yahoo group and find a home here.

Milton Aupperle ... index.html

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