The Charlie Bates Solar Astronomy Project is proudly sponsored by the following fine companies:
ImageImageImageImage
Image
Image
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

Full Disc 11 January 2020

this is the main message area for anything solar :)
Post Reply
User avatar
rsfoto
Almost There...
Almost There...
Posts: 1127
Joined: Mon Jun 18, 2012 8:30 pm
Location: San Luis Potosi, México

Full Disc 11 January 2020

Post by rsfoto » Sat Jan 11, 2020 9:41 pm

Hi,

:hamster: Sunshine again and so here some full discs in H-alpha as well as White light. It is interesting to see that the old cycle 24 spot on the equator is not visible in WL but the new cycle 25 at about 30° South is visible in WL.

Mosaico_20200111_9Q_ET.jpg
Mosaico_20200111_9Q_ET.jpg (982.81 KiB) Viewed 427 times

Mosaico_20200111_4Q_ET.jpg
Mosaico_20200111_4Q_ET.jpg (940.08 KiB) Viewed 427 times
Last edited by rsfoto on Sat Jan 11, 2020 9:50 pm, edited 1 time in total.
regards Rainer

Observatorio Real de 14 San Luis Potosi Mexico

User avatar
DeepSolar64
Ohhhhhh My!
Ohhhhhh My!
Posts: 122
Joined: Thu Sep 05, 2019 12:19 am
Location: Edneyville North Carolina U.S.A.

Re: Full Disc 11 January 2020

Post by DeepSolar64 » Sat Jan 11, 2020 9:47 pm

Rainer

Thanks for the Ha & WL views. I have cloudy rainy weather here today.

James
Orion 70mm Solar Telescope
Meade Coronado SolarMax II 60 DS

User avatar
JochenM
Ohhhhhh My!
Ohhhhhh My!
Posts: 124
Joined: Tue Dec 10, 2019 2:26 pm
Location: Belgium

Re: Full Disc 11 January 2020

Post by JochenM » Sun Jan 12, 2020 6:21 am

Lots of visible activity on that disk. Nice shot!

User avatar
MAURITS
Way More Fun to Share It!!
Way More Fun to Share It!!
Posts: 1266
Joined: Tue Nov 27, 2018 4:37 pm
Location: Belgium
Contact:

Re: Full Disc 11 January 2020

Post by MAURITS » Sun Jan 12, 2020 7:17 am

Very nice to see Rainer, lovely to see the Wl.
Regards,
Maurits

Vista del Cielo Observatory

www.vistadelcielo.be

User avatar
salvo lauricella
Ohhhhhh My!
Ohhhhhh My!
Posts: 96
Joined: Sun Dec 08, 2019 10:48 am
Location: Syracuse, Italy
Contact:

Re: Full Disc 11 January 2020

Post by salvo lauricella » Sun Jan 12, 2020 11:36 am

Very very good Rainer!

User avatar
MapleRidge
Way More Fun to Share It!!
Way More Fun to Share It!!
Posts: 6101
Joined: Fri Jan 13, 2012 11:58 pm
Location: Cambray, ON Canada
Contact:

Re: Full Disc 11 January 2020

Post by MapleRidge » Sun Jan 12, 2020 12:48 pm

Another beautifully detailed FD image Ranier :bow

Brian
Brian Colville

Maple Ridge Observatory

Cambray, ON Canada

Photos: https://www.flickr.com/photos/185395281@N08/albums

User avatar
ffellah
Way More Fun to Share It!!
Way More Fun to Share It!!
Posts: 2992
Joined: Mon Oct 27, 2014 6:46 pm
Location: Westport, CT USA

Re: Full Disc 11 January 2020

Post by ffellah » Sun Jan 12, 2020 2:35 pm

Fantastic images, Rainer. So clean...

Franco :seesaw

User avatar
marktownley
Librarian
Librarian
Posts: 26633
Joined: Tue Oct 18, 2011 5:27 pm
Location: Brierley Hills, UK
Contact:

Re: Full Disc 11 January 2020

Post by marktownley » Sun Jan 12, 2020 4:31 pm

Brilliant! Those polar filaments in both hemispheres are an indication cycle 25 activity is just below the surface.
Image
http://brierleyhillsolar.blogspot.co.uk/
Solar images, a collection of all the most up to date live solar data on the web, imaging & processing tutorials - please take a look!

User avatar
rsfoto
Almost There...
Almost There...
Posts: 1127
Joined: Mon Jun 18, 2012 8:30 pm
Location: San Luis Potosi, México

Re: Full Disc 11 January 2020

Post by rsfoto » Sun Jan 12, 2020 5:45 pm

marktownley wrote:
Sun Jan 12, 2020 4:31 pm
Brilliant! Those polar filaments in both hemispheres are an indication cycle 25 activity is just below the surface.
Hi Mark,

Thanks for that explanation. That is what I was going to ask if they mean something

This cycle 25 is my second cycle as I started around 2008

:bow

Rainer
regards Rainer

Observatorio Real de 14 San Luis Potosi Mexico

User avatar
eroel
Way More Fun to Share It!!
Way More Fun to Share It!!
Posts: 4879
Joined: Mon Dec 19, 2011 10:45 pm
Location: México D.F.

Re: Full Disc 11 January 2020

Post by eroel » Sun Jan 12, 2020 10:31 pm

Rainer:
Excellent mosaics.
Fuerte abrazo,
Eric.

User avatar
krakatoa1883
Almost There...
Almost There...
Posts: 538
Joined: Sat Jun 11, 2016 9:41 am
Location: Mediolanum

Re: Full Disc 11 January 2020

Post by krakatoa1883 » Mon Jan 13, 2020 7:57 am

Nice disc, how many details there !
Raf
My solar images and reports with articles on solar equipment

User avatar
Montana
Way More Fun to Share It!!
Way More Fun to Share It!!
Posts: 21186
Joined: Mon Oct 17, 2011 5:25 pm
Location: Cheshire, UK

Re: Full Disc 11 January 2020

Post by Montana » Mon Jan 13, 2020 10:32 am

Superb full discs :hamster: :bow
In WL you can only observe faculae at the limb, when the cycle 24 AR gets to the limb you will see it :)

Alexandra

User avatar
rsfoto
Almost There...
Almost There...
Posts: 1127
Joined: Mon Jun 18, 2012 8:30 pm
Location: San Luis Potosi, México

Re: Full Disc 11 January 2020

Post by rsfoto » Mon Jan 13, 2020 3:47 pm

Montana wrote:
Mon Jan 13, 2020 10:32 am
Superb full discs :hamster: :bow
In WL you can only observe faculae at the limb, when the cycle 24 AR gets to the limb you will see it :)

Alexandra
Hi everybody,

Thanks for the comments

@Alexandra, Thanks for the info. I guess you mean cycle 25 AR ... ;)
regards Rainer

Observatorio Real de 14 San Luis Potosi Mexico

User avatar
Montana
Way More Fun to Share It!!
Way More Fun to Share It!!
Posts: 21186
Joined: Mon Oct 17, 2011 5:25 pm
Location: Cheshire, UK

Re: Full Disc 11 January 2020

Post by Montana » Tue Jan 14, 2020 8:10 am

The one at the equator is cycle 24, it is in the middle, that is why you cannot see it in WL yet. When it reaches the limb you will see it's faculae too :)

Alexandra

User avatar
rsfoto
Almost There...
Almost There...
Posts: 1127
Joined: Mon Jun 18, 2012 8:30 pm
Location: San Luis Potosi, México

Re: Full Disc 11 January 2020

Post by rsfoto » Tue Jan 14, 2020 3:49 pm

Montana wrote:
Tue Jan 14, 2020 8:10 am
The one at the equator is cycle 24, it is in the middle, that is why you cannot see it in WL yet. When it reaches the limb you will see it's faculae too :)

Alexandra
Hi Alexandra,

Thanks. Did not correctly understand what you wrote and therefor I thought you were referring to the fact that when cyle 25 spots start to arise then I can see them.

Sorry for the confusion ...

:mrgreen:
regards Rainer

Observatorio Real de 14 San Luis Potosi Mexico

Post Reply