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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.
Merry Christmas, Happy New Year and looking forward to a great solar cycle 25!
Merry Christmas, Happy New Year and looking forward to a great solar cycle 25!
Welcome to Solar Chat! The best forum for Solar Astronomy
Moving forward from solar cycle 24 to 25
It is currently Sun Jan 19, 2020 10:47 am
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Re: FD and big prominence 18-…
by marktownley View the latest post
Sun Jan 19, 2020 10:32 am
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ASTRO IIDC User Group
This is the new home of the ASTRO IIDC user group previously on Yahoo Lists. - 1 Topics
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Re: ASTRO IIDC Yahoo List Arc…
by Milton Aupperle View the latest post
Sat Dec 07, 2019 4:22 am
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Solarchat! Facebook Group Page
This is our Facebook counterpart to our private forum. Please join. - Total redirects: 13682
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Commercial Solar Filters/Cameras/Hardware
Use this section to discuss "standard" Baader/Coronado/ Lunt SolarView/ Daystar, etc… filters, cameras and scopes. No mods, just questions/ answers and reviews. - 554 Topics
- 5960 Posts
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Re: Meade / Solarmax Etalon F…
by MalVeauX View the latest post
Fri Jan 17, 2020 5:51 pm
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Solar Scope Modifications
Frankenscope? Let's see it!***be advised that NOTHING in this forum has been safety tested and you are reading and using these posts at your own peril. blah, blah, blah... dont mess around with your eyesight when it comes to solar astronomy. Use appropriate filtration at all times... - 808 Topics
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Re: Baader 1.25x GPC with PST…
by Rusted View the latest post
Sat Jan 18, 2020 9:02 pm
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Solar Radio, Magnetometry and Spectroscopy
I LOVE finding out about different ways to appreciate the Sun and light in general. Use this forum to post your info or questions about various outside the mainstream ways to appreciate our life giving star! - 485 Topics
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Re: Geomagnetic Unrest Jan 20…
by Carbon60 View the latest post
Tue Jan 14, 2020 6:38 am
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Solar Reference Library
these are all of the great references that our users have shared with others.
Moderator: marktownley - 65 Topics
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Re: Hi Res Solar Spectrum Res…
by marktownley View the latest post
Sun Jan 19, 2020 9:42 am
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Solar Software
The place for all your solar software; capture, stacking, post processing, ancillaries etc. It's all up for discussion here! - 31 Topics
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Re: Genika?
by Montana View the latest post
Wed Jan 15, 2020 10:09 am
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SPoD Archive
An archive of all the best images Solar Chat has to offer! - 42 Topics
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Re: Solar Analemma 2016-2019
by banjo View the latest post
Sun Dec 22, 2019 8:01 am
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Solar Astronomy Shop and Swap
VENDORS WELCOME! Please, only solar equipment. - 364 Topics
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Re: Astrosolar, SM40, doubles…
by bart1805 View the latest post
Mon Jan 13, 2020 9:13 pm
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Solar Astronomy Equipment Reviews
This forum replaces http://www.solarscopereviews.com so that more people can post their own reviews. Feel free to post your review of solar astronomy equipment here! We want as many impartial reviews as possible to help people decide what to buy. - 8 Topics
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Re: SolarQuest review
by pedro View the latest post
Sat Jan 18, 2020 1:21 pm
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Forum Support Issues
I maintain this forum in my free time. The entire purpose of it is to allow you to share your love for solar astronomy. If there is ANYTHING I can do to enhance the forum to better suit your needs, please let me know in this forum. - 112 Topics
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Re: Very slow
by rsfoto View the latest post
Sun Jan 12, 2020 7:47 pm
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Silly Forum Rules
A few simple rules that you MUST follow to participate in our forum. I am the "decider guy" and am very reasonable but there are some things that simply cannot be allowed on here. If you have any addendum's or changes that you would like to see to these rules, please post them in the Forum Issues forum. - 1 Topics
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Silly Forum Rules
by solarchat View the latest post
Thu Feb 20, 2014 2:02 pm
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Great American Solar Eclipse August 21 2017
Post anything eclipse related! - 60 Topics
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Re: A frenchman in Oregon for…
by Carbon60 View the latest post
Sat Mar 10, 2018 8:31 am
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