Planetary nebulae with UVIT - II. Revelations from far-UV vision of Butterfly nebula NGC 6302 N. Kameswara Rao, O. De Marco, S. Krishna, J. Murthy, A. Ray, F. Sutaria and R. Mohan A&A, 620 (2018) A138 Published online: 10 December 2018 DOI: 10.1051/0004-6361/201833507