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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!

Welcome to Solar Chat! The best forum for Solar Astronomy
Moving forward from solar cycle 24 to 25

Search found 441 matches

by banjo
Wed Oct 23, 2019 2:21 pm
Forum: Solar Software
Topic: TUTORIAL artificial eclipse effect for animation
Replies: 1
Views: 346

TUTORIAL artificial eclipse effect for animation

hello , a tutorial with photoshop Cs2 (free) to achieve an "artificial eclipse" for solar animation. This is not the best but it is my process, it is better to tag the edge of the sun and the size of the circle on this video . Very long to load :mrgreen: Paul English version https://astropol.pagespe...
by banjo
Mon Oct 21, 2019 5:33 pm
Forum: This is SolarChat !!
Topic: Animation test #2
Replies: 13
Views: 619

Re: Animation test #2

look at this for eclipse
just quickly, you have to adjust the ellipse
long to load
Paul

https://astropol.pagesperso-orange.fr/coroFranco.mp4

https://astropol.pagesperso-orange.fr/coroFranco.mp4
by banjo
Mon Oct 21, 2019 5:18 am
Forum: This is SolarChat !!
Topic: animation on our star on October 16th
Replies: 23
Views: 744

Re: animation on our star on October 16th

I have a question for you, Paul. How do you black out the solar disk in an animation ? Do you use Corono ? I assume you want to block the disk images with batch processing... Thank you, Franco Hello Franco I use Photoshop Cs2 (free version) Load first Picture start recording script elipse tangent o...
by banjo
Sun Oct 20, 2019 3:04 pm
Forum: This is SolarChat !!
Topic: animation on our star on October 16th
Replies: 23
Views: 744

Re: animation on our star on October 16th

[attachment=0

Don't worry about the translation...its far better than any attempt I'd make going form English to French ;)

[/quote]
rire-gifs-animes-057423.gif
rire-gifs-animes-057423.gif (47.66 KiB) Viewed 606 times
by banjo
Sun Oct 20, 2019 8:21 am
Forum: This is SolarChat !!
Topic: Today's SUN (20191019) | afternoon session
Replies: 16
Views: 812

Re: Today's SUN (20191019) | afternoon session

Very quiet sun ,but at least you have clear sky .
Paul
by banjo
Sun Oct 20, 2019 8:18 am
Forum: This is SolarChat !!
Topic: Saturday Sunshine 19th October
Replies: 13
Views: 555

Re: Saturday Sunshine 19th October

:bow :bow
Paul
by banjo
Sun Oct 20, 2019 8:15 am
Forum: This is SolarChat !!
Topic: animation on our star on October 16th
Replies: 23
Views: 744

Re: animation on our star on October 16th

thank you Franco and Alfred,
Franco your animation # 2 really impressed me . :bow
Paul
by banjo
Sun Oct 20, 2019 8:11 am
Forum: This is SolarChat !!
Topic: Animation test #2
Replies: 13
Views: 619

Re: Animation test #2

:bow :bow :bow :bow :bow :bow
superbe , bravo!!!!
Paul
by banjo
Fri Oct 18, 2019 3:35 pm
Forum: This is SolarChat !!
Topic: animation on our star on October 16th
Replies: 23
Views: 744

Re: animation on our star on October 16th

Hello,
Thank you all for your messages.

for Rusted --------->>> my Pst modification
https://astropol.pagesperso-orange.fr/lulusolw/modifica

Paul
by banjo
Thu Oct 17, 2019 9:25 am
Forum: This is SolarChat !!
Topic: animation on our star on October 16th
Replies: 23
Views: 744

Re: animation on our star on October 16th

Hello,
Thank you all for your messages.
I love your pictures, but I'm afraid to comment, my English is totally Googletranslator and I write too much nonsense. :oops:

Paul
by banjo
Wed Oct 16, 2019 4:18 pm
Forum: This is SolarChat !!
Topic: animation on our star on October 16th
Replies: 23
Views: 744

animation on our star on October 16th

Hello, it's not the animation of the century, but be really fed up with this sky of Sh.. (since September 20) many aircraft trails that dilute as they spread out and form a permanent cloud. video rotated 180 ° Paul http://www.astrosurf.com/uploads/monthly_2019_10/soleil16oct19.gif.a1e46dcf3467dda51c...
by banjo
Tue Sep 24, 2019 9:30 am
Forum: This is SolarChat !!
Topic: animation 20 sept big prom
Replies: 13
Views: 552

Re: animation 20 sept big prom

thank you very much Stu , Robert and Alexandra .
Paul
by banjo
Mon Sep 23, 2019 11:31 am
Forum: This is SolarChat !!
Topic: animation 20 sept big prom
Replies: 13
Views: 552

Re: animation 20 sept big prom

thank you very much Brian, Mark and all.
very good photos and animations on the forum on September 20th.
Paul
by banjo
Mon Sep 23, 2019 11:27 am
Forum: This is SolarChat !!
Topic: SUN & MOON (20190906) | 4 scopes
Replies: 13
Views: 714

Re: SUN & MOON (20190906) | 4 scopes

Superb animation Pedro. :bow :bow :bow
Paul
by banjo
Mon Sep 23, 2019 11:24 am
Forum: This is SolarChat !!
Topic: Big prom animated. 20th September
Replies: 16
Views: 707

Re: Big prom animated. 20th September

Superb animation Robert :bow :bow :bow
Paul
by banjo
Mon Sep 23, 2019 11:23 am
Forum: This is SolarChat !!
Topic: Some September 21st Sun
Replies: 12
Views: 562

Re: Some September 21st Sun

Very good results
Paul
by banjo
Mon Sep 23, 2019 11:21 am
Forum: This is SolarChat !!
Topic: Great prom today 9/22/19
Replies: 24
Views: 872

Re: Great prom today 9/22/19

Very,very good results , bravo !!!! :bow :bow :bow
by banjo
Mon Sep 23, 2019 11:19 am
Forum: This is SolarChat !!
Topic: Slim Pickings.... 14th Sept '19
Replies: 13
Views: 660

Re: Slim Pickings.... 14th Sept '19

Very good results
Paul
by banjo
Mon Sep 23, 2019 11:18 am
Forum: This is SolarChat !!
Topic: Sol from the 15th of September 2019.
Replies: 12
Views: 539

Re: Sol from the 15th of September 2019.

:bow Very good results :bow :bow :bow
by banjo
Sun Sep 22, 2019 3:03 pm
Forum: This is SolarChat !!
Topic: animation 20 sept big prom
Replies: 13
Views: 552

Re: animation 20 sept big prom

Great animation, Paul. I too experienced that kind of artifacts when wind or turbulence are strong. Sometimes I am able to get rid of the problem by selecting and stacking only few frames and/or adding some very large alignment poins in AS3! within the dark area. Thank you all for your messages the...
by banjo
Sun Sep 22, 2019 8:37 am
Forum: This is SolarChat !!
Topic: animation 20 sept big prom
Replies: 13
Views: 552

animation 20 sept big prom

hello , not the best conditions, but I think she lets herself be watched. ssm between 3.5 and 6 wind 60kmh gusts more than half of the discarded images. Paul https://astropol.pagesperso-orange.fr/Sun_20sept19-13h33-14h54mn.gif The effect of the wind https://www.webastro.net/uploads/monthly_2019_09/S...
by banjo
Fri Sep 06, 2019 11:12 am
Forum: This is SolarChat !!
Topic: animations 22-29-30 august
Replies: 7
Views: 493

Re: animations 22-29-30 august

Hello everyone,
thank you for your messages, sorry do not have answered faster.
Paul
by banjo
Sun Sep 01, 2019 9:44 am
Forum: This is SolarChat !!
Topic: animations 22-29-30 august
Replies: 7
Views: 493

animations 22-29-30 august

Hello everyone , some animations, more or less successful. Paul. very long to load 22 august animation on 6h, sorry for the defects on the video, the wind to suffer well my old (very old) eq6. http://www.astrosurf.com/uploads/monthly_2019_08/Sun_22aout19.gif.8841bd84a3262cf1146fce9057abce25.gif 29 a...