Bibcode
                                    
                            Tovmassian, G. H.; Stasińska, G.; Chavushyan, V. H.; Zharikov, S. V.; Gutierrez, C.; Prada, F.
    Bibliographical reference
                                    Ionized Gaseous Nebulae, a Conference to Celebrate the 60th Birthdays of Silvia Torres-Peimbert and Manuel Peimbert, Mexico City, November 21-24, 2000 (Eds. W. J. Henney, J. Franco, M. Martos, & M. Peña) Revista Mexicana de Astronomía y Astrofísica (Serie de Conferencias) Vol. 12, pp. 146-147 (2002) (http://www.astroscu.unam.mx/~rmaa/)
Advertised on:
    
                        2
            
                        2002
            
  Citations
                                    2
                            Refereed citations
                                    2
                            Description
                                    We show that SBS1150+599A is most probably a planetary nebula located in
the Galactic halo (becoming PN G135.9+55.9). Our photoionization models
indicate that its oxygen abundance is lower than 1/100 solar.