Blogs

The observatory is off the Internet

Submitted by admin on 14 January, 2012 - 20:48

Due to a massive power outage and then surge some of our network equipment is not functioning. So the observatory is off the internet. We hope to be back online in 3 days..

Merry Christmas and Happy New 2012 Year

Submitted by nikipetrov on 24 December, 2011 - 13:16

Wish you all a Merry Christmas and a Happy New Year!

Iridescent cloud over the Rila Mountain

Submitted by nikipetrov on 31 October, 2011 - 11:44

Iridescent cloud

Canon PowerShot SX10 IS, focal length: 40mm, f/5.0, exp. time: 1/640 sec, ISO: 80

28 Oct 2011 06:49 UT, photo: Anton Stoychev

Site changes

Submitted by admin on 24 August, 2011 - 09:39

We've made some changes to the site - a software update and some layout changes. "Latest image" will only show up on the front page now. The "Similar entries" block will NOT display on the first page anymore, but on top right when an article is opened.

Quadrantids meteor shower 2011

Submitted by nikipetrov on 2 January, 2011 - 11:21

The night on January 3th, 2011 Quadrantids meteor shower is at it's maximum. The Quadrantids are an above average shower, with about 80 meteors per hour at their peak. Best viewing will be from a dark location after midnight. Look for meteors radiating from the constellation Bootes. For Bulgaria the constellation Bootes on Jun 3th is visible after midnight in North-East direction on the horizon (Fig. below). Quadrantids are bright, blue and enter into the Earth atmosphere fast. Themselves speed is about 41 km/s.

Merry Christmas and Happy New Year

Submitted by nikipetrov on 22 December, 2010 - 22:36

Wish you all a Merry Christmas and a Happy New Year

ISS over the Sun

Submitted by nikipetrov on 7 August, 2010 - 10:17

On July 15th, 2010 at 14:27 (LST) the ISS crossed the solar disk as seen from Varna, Bulgaria. The image was taken by Emil Ivanov with CANON 40 D camera and 840mm CANON objectve.

Sunspots image 07 Aug 2010

Submitted by nikipetrov on 7 August, 2010 - 09:51

Sunspots observations in White-Light from the teritory of National Astronomical Observatory ROZHEN. The image was taken by Tsvetan Tsvetkov and Yovelina Zinkova with refractor telescope 80/1200 and Digital camera CANON EOS 350 D- summer astronomical scool Haskovo-Dimitrovgrad 2010.