Sunspot AR2396 8 August 2015

Solar Prominence 8 Aug 2015

Solar activity has increased over the last few days, as one of the largest Sunspots AR2396 in the recent months is visible on the Solar limb that is facing towards the Earth. In just one day its surface increased by 50%. The growing sunspot group stretches more than 150,000 km from end to end. All by itself, the primary dark core is more than three times the size of Earth and can be observed even by naked eye using the adequate protection. View of the Sunspot and its surrounding in H-alpha light:

Sunspot AR2396 8 Aug 2015

Solar surface 8 Aug 2015

Partial Solar eclipse 20 March 2015

Composite image of the different stages of the Solar eclipse.

In the capital city of Slovenia, Ljubljana, public observation of the Solar eclipse was held on one of the town squares. Astronomical societies and individual brought more than 15 telescopes (regular protected with mylar foil or special h-alpha telescopes), some binoculars and countless of cameras and eclipse glasses.

During the eclipse more than 10.000 people joined the event and looked through a variety of optical systems.

The final stages of the eclipse were partially obscured by the clouds.
Date: 20. March 2015 10:37 UT
Equipment: Nikon D3000, Tamron 70-300@300mm, f/5.6

Colorful Sunrises and Sunsets

This month we could see some very colorful sunrises and sunset.

Sunset, 25. December 2014
Equipment: Nikon D3000, Tokina 11-16 @ 16mm, f/2.8 ISO200
Sunset, 25. December 2014
Equipment: Nikon D3000, Tamron 70-300 @ 300mm, f/5.6 ISO800
Moon at sunset, 25. December 2014
Equipment: Nikon D3000, Tokina 11-16 @ 16mm, f/2.8 ISO800
Sunset, 31. December 2014

Sunset, 31. December 2014

Solar prominence 31 October 2014

Short animation of the ever changing solar prominence. It consists of 38 frames at frame-rate of 15 fps. Still frames were acquired from 11:10 to 11:50 UT. Every still frame is registered and processed imaged, made out of 45 seconds long video. Seeing conditions were very poor.
Object: Solar prominence animation
Date: 31 October 2014
Equipment: Basler acA640-100gm, Lunt 60 mm + 2xBarlow
Capture and processing : FireCapture, AutoStakkert2, Gimp
Object: Solar prominence
Date: 31 October 2014 11:05 UT
Equipment: Basler acA640-100gm, Lunt 60 mm + 2xBarlow
Capture and processing : FireCapture, AutoStakkert2, Gimp
Object: Solar prominence
Date: 31 October 2014 11:47 UT
Equipment: Basler acA640-100gm, Lunt 60 mm + 2xBarlow
Capture and processing : FireCapture, AutoStakkert2, Gimp

Sunspot AR2192 28 October 2014

The biggest sunspot in the last 25 years. It has unleashed many strong X-class and M-class solar flares. The most intense of these flares have caused HF radio blackouts and other communication disturbances on the dayside of Earth.

Weather here was very unfavorable for any telescopic high resolution imaging of this enormous sunspot. Here is a quick image I took with telephoto lens during my job time.

Object: Sun and sunspots
Date: 28. October 2014 12:56 UT
Equipment: Nikon D3000, Tamron 70-300@300mm, f/5.6, ISO 100, 1/640s

Sun surface 6 July 2014

Object: Sun surface
Date: 6 July 2014
Equipment: Basler acA640-100gm, Lunt 60 mm + 2x Barlow
Capture and processing : FireCapture, AutoStakkert2, Registax, Gimp
Object: Sun surface
Date: 6 July 2014
Equipment: Basler acA640-100gm, Lunt 60 mm
Capture and processing : FireCapture, AutoStakkert2, Registax, Gimp