Meech, K. J; Schambeau, C. A; Sorli, K; Kleyna, J; Micheli, M; Bauer, J; Denneau, L; Keane, J. V; Toller, E; Wainscoat, R; Hainaut, O; Bhatt, B. C; Sahu, D. K; Yang, B; Kramer, E; Magnier, G
(IOP Publishing, 2017-05)
We report the beginning of activity for comet C
/
2015 ER61
(
PANSTARRS
)
, the
fi
rst instance of watching a long-
period comet turn on. Pre-discovery observations and observations from the
NEOWISE
space telescope ...