Observations of distant comet C/2011 KP36 (Spacewatch): photometry, spectroscopy, and polarimetry Oleksandra Ivanova, Vera Rosenbush, Igor Luk’yanyk, Ludmilla Kolokolova, Valery Kleshchonok, Nikolai Kiselev, Viktor Afanasiev and Zachary Renée Kirk A&A, 651 (2021) A29 Published online: 06 July 2021 DOI: 10.1051/0004-6361/202039668