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On the rotation period and shape of the hyperbolic asteroid 1I/`Oumuamua (2017) U1 from its lightcurve
Matthew M. Knight, Silvia Protopapa, Michael S. P. Kelley +5
We observed the newly discovered hyperbolic minor planet 1I/`Oumuamua (2017 U1) on 2017 October 30 with Lowell Observatory's 4.3-m Discovery Channel Telescope. From these observati…
Gemini and Lowell Observations of 67P/Churyumov-Gerasimenko During the Rosetta Mission
Matthew M. Knight, Colin Snodgrass, Jean-Baptiste Vincent +4
We present observations of comet 67P/Churyumov-Gerasimenko acquired in support of the mission. We obtained usable data on 68 nights from 2014 September until 2016 May, wi…
The Rotation and Other Properties of Comet 49P/Arend-Rigaux, 1984 - 2012
Nora Eisner, Matthew M. Knight, David G. Schleicher
We analyzed images of comet 49P/Arend-Rigaux on 33 nights between 2012 January and May and obtained R-band lightcurves of the nucleus. Through usual phasing of the data we found a…
The Main Belt Comets and Ice in the Solar System
Colin Snodgrass, Jessica Agarwal, Michael Combi +11
We review the evidence for buried ice in the asteroid belt; specifically the questions around the so-called Main Belt Comets (MBCs). We summarise the evidence for water throughout…
The 67P/Churyumov-Gerasimenko observation campaign in support of the Rosetta mission
C. Snodgrass, M. F. A'Hearn, F. Aceituno +112
We present a summary of the campaign of remote observations that supported the European Space Agency's Rosetta mission. Telescopes across the globe (and in space) followed comet 67…