TWENTY YEARS BULGARIAN-SERBIAN COOPERATION IN ASTRONOMY:
JOINT ASTRONOMICAL CONFERENCES

Milcho Tsvetkov(1,3), Milan Dimitrijevic(2), and Katya Tsvetkova(3)

1) Astronomical Institute with National Astronomical Observatory, 
Bulgarian Academy of Sciences, Tsarigradsko Sh. Blvd 72, 1784 Sofia, 
Bulgaria
2) Belgrade Astronomical Observatory, Volgina 7, 11060 Belgrade, Serbia
3) Institute of Mathematics and Informatics, Bulgarian Academy Sciences, 
Acad. G. Bonchev Str. Bl.8, 1113 Sofia, Bulgaria

Invited talk)

Abstract. 

Since 1998 a regular joint conferences initiative between Bulgarian and 
Serbian astronomers has been established. On bilateral basis joint 
meetings were organized: Bulgarian-Serbian ones if the meeting is held in 
Bulgaria or Serbian-Bulgarian if it was organized in Serbia and in both 
cases with the support of the Bulgarian and Serbian Academies of Sciences 
and Art (BAS and SANU). During first 10 years 5 joint conferences were 
organized described in details in the paper of Milan Dimitrijevic and 
Milcho Tsvetkov (2009). Here we stress on the second 10 years period 
(2010-2018) when 5 more conferences were organized - in Belgrade (2008), 
Chepelare (Bulgaria, 2010), Lescovac (Serbia, 2012), Sofia (2014), and 
Belgrade (Serbia, 2016). This collaboration started on a basis of private 
friendly relationships enlarges later officially in many agreements 
between both institutes: Institute of Astronomy and National Astronomical 
observatory (BAS) and Belgrade Astronomical observatory (BAO). Over the 
years the bilateral conferences become more and more popular and many 
astronomers from other countries (Czech Republic, Russia, Germany, 
Ukraine, France, etc.) also attended the meetings. This collaboration was 
extended to several joint astronomical initiatives as the COST action 
TD1403, the supported by UNESCO Regional Bureau for Science and Culture 
in Europe (UNESCO-BRESCE), Eurasian Astronomical Society (EAAS), etc. We 
also extended the topics to the modern field in Astronomy as 
Astroinformatics. This already traditional collaboration once more 
emphasizes the significance of the development and enlargement of the 
Bulgarian-Serbian joint work in Astronomy, Space Sciences and 
Astroinformatics.


Milan S. Dimitrijevic, Milcho Tsvetkov, Публ. Астр. друш. “Руђер 
Бошковић” бр. 8, 2009, pp. 795-811, Зборник радова конференције “Развој 
астрономије код Срба V” Beograd, 18-22 April 2008, Ed. M. Dimitrijevic. 
http://www.wfpdb.org/ftp/0_MISCELLANEOUS_AOB/DAAS_5/pdfs-s/66.pdf)