Publications

1. I Poljancic Beljan, L Sibenik, K Loncaric, T Jurkic, R. Jurdana-Sepic, W. Potzi, D. Hrzina, R. Brajsa, A. Veronig, A. Hanslmeier, Characteristics of the Solar Differential Rotation and Activity During Solar Cycle No. 24, Universe, 11 (12) 395 (2025)

2. I. Beljan, L. Sibenik, T. Jurkic, K. Loncaric, R. Jurdana-Sepic, D. Hrzina, W. Potzi, R. Brajsa, A. Veronig, A. Hanslmeier, An Analysis of the Solar Differential Rotation in Solar Cycle No. 19 (1954–1964) Determined Using Kanzelhohe Sunspot Group Positions, Solar Physics, 300 (8) 118 (2025)

3. R. Jurdana-Sepic, The Influence of discoveries in physics on the history of the 20th century, Povijest u nastavi, 33 (1) 191-206 (2022)

4. A. Macuca, B. Poljancic, R. Jurdana-Sepic, K. Loncaric, Relationship between mathematical competencies and achievements in physics of 14-year-old students, GIREP conference, university of Ljubljana, 4-8 (2022)

5. I. Beljan, R. Jurdana-Sepic, T. Jurkic, R. Brajsa, I. Skokic, D. Sudar, Variation in solar differential rotation and activity in the period 1964–2016 determined by the Kanzelhohe data set, Astronomy & astrophysics (663) A24 (2022)

6. U. Munari, V. Joshi, D. Banerjee, K. Cotar, S. Shugarov, R. Jurdana-Sepic, R. Belligoli, A. Bergamini, M. Graziani, G. Righetti, A. Vagnozzi, P. Valisa, The 2018 eruption and long-term evolution of the new high-mass Herbig Ae/Be object Gaia-18azl= VES 263, Monthly Notices of the Royal Astronomical Society, 488 (4) 5536-5550 (2019)

7. I. Beljan, R. Jurdana-Sepic, R. Brajsa, A. Veronig, Relationship between steepnes of the solar differential rotation and activity (poster), Conference: 2nd China-Europe Solar Physics Meeting, Advances in Solar and Heliospheric Physics, Hvar, Croatia, 6-10 May (2019)

8. R. Jurdana-Sepic, U. Munari, S. Antoniucci, T. Giannini, D. Lorenzetti, Towards a better classification of unclear eruptive variables: the cases of V2492 Cyg, V350 Cep, and ASASSN-15qi, Astronomy and Astriphysics (614) A9 (2018)

9. T. Giannini, U. Munari, D. Lorenzetti, R. Jurdana-Sepic, The Mass Accretion Rate of the Young Variable Star GM Cep, Research Notes of the AAS, 2 (3) 124 (2018)

10. I. Beljan, R. Jurdana-Sepic, R. Brajsa, D. Sudar, D. Ruzdjak, D. Hrzina, Solar differential rotation in the period 1964–2016 determined by the Kanzelhцhe data set, Astronomy & Astrophysics (606) A72 (2017)

11. R. Jurdana-Sepic, U. Munari, Reconstructing Historical Light Curves of Symbiotic Stars and Novae, Open Astronomy, 21 (1) 177-179 (2017)

12. R. Jurdana-Sepic at al, Astronomy and Astriphysics (602) A99 (2017)

13. R. Jurdana-Sepic, U. Munari, The past photometric history of the FU Ori-type young eruptive star 2MASS J06593158-0405277= V960 Mon, New Astronomy (43) 87-90 (2016)

14. I. Beljan, R. Jurdana-Sepic, E. Semkov, S. Ibryamov, S. Peneva, Long-term photometric observations of pre-main sequence objects in the field of North America/Pelican Nebula, Astronomy & Astrophysics (568) A49 (2014)

15. I. Poljancic-Beljan, R. Jurdana-Sepic, M. Cargonja, R. Brajsa, D. Hrzina, An analysis of the solar differential rotation from the Kanzelhцhe sunspot drawings, Central European Astrophysical Bulletin, 38 (2) 87-93 (2014)

16. S. Rukavina, M. Zuvic-Butorac, J. Ledic, B. Milotic, R. Jurdana-Sepic, Developing positive attitude towards science and mathematics through motivational classroom experiences, Science education international, 23 (1) 6-19 (2012)

17. E. Semkov, S. Peneva, U. Munari, M. Tsvetkov, R. Jurdana-Sepic, Optical photometric and spectral study of the new FU Orionis object V2493 Cygni (HBC 722), Astronomy & Astrophysics (542) A43 (2012)

18. R. Jurdana Sepic, V. Ribeiro, M. Darnley, U. Munari, M. Bode, Historical light curve and search for previous outbursts of Nova KT Eridani (2009), Astronomy & Astrophysics (537) A34 (2012)

19. R. Jurdana Sepic, R. Brajsa, H. Wohl, A. Hanslmeier, I. Poljancic, A relationship between the solar rotation and activity in the period 1998–2006 analysed by tracing small bright coronal structures in SOHO-EIT images, Astronomy & Astrophysics (534) A17 (2011)

20. I. Poljancic, R. Brajsa, D. Ruzdjak, D. Hrzina, R. Jurdana–Sepic, H. Wohl, A Comparison of Sunspot Position Measurments from Different Data Sets, Sun Geosph. 5 (2), 52-57 (2010)

21. R. Jurdana-Sepic, U. Munari, Symbiotic Stars on Asiago Archive Plates, Publications of the Astronomical Society of the Pacific, 122 (887) 35 (2009)

22. U. Munari, A. Siviero, A. Henden, G. Cardarelli, G. Cherini, S. Dallaporta, R. Jurdana-Sepic, The nature and evolution of Nova Cygni 2006, Astronomy & Astrophysics 492 (1) 145-162 (2008)

23. R. Jurdana-Sepic, U. Munari, Plate archive photometry of the progenitors of Nova Cyg 2008 N. 2 and Nova Sgr 2008, Information Bulletin on Variable Stars (5839) 1 (2008)

24. R. Brajsa, A. Benz, M. Temmer, R. Jurdana-Sepic, B. Saina, H. Wohl, An interpretation of the coronal holes’ visibility in the millimeter wavelength range, Solar Physics (245) 167-176 (2007)

25. U. Munari, R. Jurdana-Sepic, Symbiotic stars on Asiago archive plates. II, Astronomy & Astrophysics, 386 (1) 237-243 (2002)

26. U. Munari, R. Jurdana-Sepic, D. Moro, Symbiotic stars on Asiago archive plates, Astronomy & Astrophysics, 370 (2) 503-506 (2001)

27. D. Kotnik-Karuza, R. Jurdana-Sepic, CH Cygni: TiO molecule as a probe of temperature variations in the atmosphere of the cool component, Astronomy and Astrophysics (355) 595-602 (2000)

28. D. Kotnik-Karuza, R. Jurdana-Sepic, Search for Signs of a New Outburst in the Quiescent State of CH Cygni, Highlights of Astronomy, 11 (1) 357-357 (1998)

29. D. Kotnik-Karuza, R. Jurdana-Sepic, CH Cygni: A Symbiotic Star in Its Transition Phase to Quiescence, Astronomical and Astrophysical Transactions 13 (4) 303-307 (1997)

30. R. Jurdana, D. Kotnik-Karuza, Search for the remnants of the 1977-1986 outburst in the quiescent phase of CH Cygni, Astronomy and Astrophysics Suppl. (108) 533-545 (1994)

31. D. Kotnik-Karuza, R. Jurdana, M. Hack, The quiescent phase of CH Cygni during the period 1987-1989, Astronomy and Astrophysics Supplement Series (94) 251-258 (1992)

32. M. Zuvic-Butorac, R.Jurdana Sepic, B. Milotic, Constructivistic Workshops for Children in Physics Teacher Education

Reports and Posters

1. R. Jurdana-Sepic, U. Munari, P. Kroll,Historical Photographic Data Archives – Treasure of Astrophysics, Fourth International Conference on the History of Physics, Trinity College, Dublin, Ireland, 8-10 June 2022