ɪn dʒˈænjuːˌɛɹi tˈuː θˈaʊzənd fˈoːɹtiːn, tˈuː ɹoʊtˈeɪʃənəl lˈaɪtkɜːvz ʌv ɹˈɑːʒən wɜːɹ əbtˈeɪnd fɹʌm fˌoʊɾoʊmˈɛtɹɪk ɑːbzɚvˈeɪʃənz æt ðə pˈælɑːmɚ tɹˈænsiənt fˈæktɚɹi ɪn kˌælɪfˈoːɹniə, juːnˈaɪɾᵻd stˈeɪts.
In January 2014, two rotational lightcurves of Rozhen were obtained from photometric observations at the Palomar Transient Factory in California, United States.