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Best astronomy events for 2013

Here are the most spectacular astronomical events expected for 2013.

Selected are no more than one event per month and additional information is given.


Local weather data available

The new weather station is working and online. The weather data is available here. In time we will provide a better integration with our site.

Total Lunar Eclipse on 10 Dec 2011

The total Lunar eclipse on 10 Dec 2011 was an unusually phenomenon for observers in Bulgaria. In the moment of sunset the Moon rises on the horizon obscured by Earth’s shadow.

Fig. 1. Eclipse of the Moon on 10Dec 2011. CANON 1Ds MarkII, with 400 mm F/5.6 lenses, 1/8 sec. at 3200 ISO.

Sunspots observations 03-09 August 2011

Sunspot observations during the summer astronomical school, 3rd - 9th August 2011, NAO Rozhen. The animated picture presents the movement of the sunspots (active regions 1260, 1261 and 1263) across the solar disc for 6 days.


Partial Solar eclipse on 01 June 2011

Partial Solar eclipse on 01 June 2011
Sun rise: 02:52 UT
Sun set: 17:58 UT
First contact:                                 19:25 UT
Time of maximum eclipse:        21:16 UT
Last contact:                                 23:07 UT

Mercury: The Key to Terrestrial Planet Evolution

The spacecraft MESSENGER obtained first images of Mercury, the planet closest to the Sun.
More information.

Why was the site down

 A few days ago the site (the entire domain in fact)  went off. We are back now, a simple administrative issue caused a delay in the domain renewal.

Sunspot active region 1158

The last three days we are observing growth of a large active region (1158). Near to center of the visible solar disk and more than 10 times Earth’s diameter, this sunspot group is able to produce a "perfect" solar storm.

Partial solar eclipse on January 4, 2011 from NAO Rozhen

The partial solar eclipse on January 4, 2011 was observed through clouds and during snowfall. Unfortunately, it was not possible to shoot all phases of the eclipse. Below are presented images of the moments in which the cut solar disk was visible in the sky. The images show almost the  maximum phase of the eclipse for the territory of Bulgaria (National Observatory Rozhen).

10:05:38 local time (UT+2)

Partial solar eclipse on 4 January 2011

Partial solar eclipse on 4 January 2011 will be visible from Europe, North Africa and East Asia. Eclipse will be visible from the whole territory of Bulgaria with a maximum coverage of the solar disk of about 72%. Eclipse starts at 9:03 local time in Sofia, the maximum phase of the eclipse will occur at 10:27 hours and will end at 12:03 when the lunar disk will completely leave the sun.

This partial eclipse is the first solar eclipse of 2011. Is still three, but invisible to the territory of Bulgaria. More information about the next eclipses can be found in astronomical calendar on this web page.
Different phases of the eclipse are shown in the figure below.


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