Posted on Friday, August 22, 2014
By Kadri
Here's an image of the Sun in Hydrogen-Alpha on August 22nd, 2014, taken with a Canon EOS 500D camera through a Coronado SolarMax II telescope. For the full disk image ISO 1600 and exposure 1/400s, and for the inset picture of the active region in the middle of the disk ISO 1600 and exposure 1/250s. I had to use a high ISO setting in order to capture the images quickly, as the sky was cloudy with clouds moving very fast.

In the inset you can see the larger sunspot - AR2146 and the spot nearby is part of the group AR2148 and the bright spot just coming into view in the lower right-hand edge is AR2149, that produced an M3-class flare yesterday and poses a threat for future ones, with even the possibility of an X-class flare.

Sun in H-Alpha on August 22,2014. Credit: Kadri Tinn

Labels: , , , ,

Skywatch    News    Pictures    Videos    Events    Northern Lights    NASA    ESA    ISS    Jupiter    Curiosity    Mars    Moon    Lyrids    Super Moon    Venus Transit    Book Review    Games   
Upcoming Events
Submit your Photos
Have you taken interesting photo of the night sky and would like to share it with us?
Send in your photos to below email, with as much details possible relating to the photo. has created this privacy statement in order to demonstrate our firm commitment to privacy.

Information we collect:
We may log IP addresses and/or drop cookies to prevent abuse of our website and/or to enhance services.

Third Party Advertising:
Ads appearing on this website, are delivered to you by Google Adsense and other third-party advertising companies.

Information about your visit to this site, such as number of times you have viewed an ad (but not your name, address, or other personal information), is used to serve ads to you on this site. These third parties and or may be placing and reading cookies on your browser to collect information, in the course of ads being served.

You may manage your cookies via your web browser and if you would like more information about this practice and to know your choices about not having this information used by these companies, please click here

Google, as a third party vendor, uses cookies to serve ads on your site.

Google's use of the DART cookie enables it to serve ads to your users based on their visit to your sites and other sites on the Internet.

Users may opt out of the use of the DART cookie by visiting the Google ad and content network privacy policy.

Advertisers and Third Party Cookies :
In the course of serving advertisements to this site, our third-party ad server, Google Adsense, intergi, or individual advertisers may place or recognize a unique cookie on your browser. Cookies received with banner ads are collected by our ad company, and we do not have access to this information.

External Links: contains links to other sites. is not responsible for the privacy practices or the content of such Web sites.