Recovery of Returning Halley-Type Comet 12P/Pons-Brooks With the Lowell Discovery Telescope. (arXiv:2007.01368v1 [astro-ph.EP])
<a href="http://arxiv.org/find/astro-ph/1/au:+Ye_Q/0/1/0/all/0/1">Quanzhi Ye</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Farnham_T/0/1/0/all/0/1">Tony L. Farnham</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Knight_M/0/1/0/all/0/1">Matthew M. Knight</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Holt_C/0/1/0/all/0/1">Carrie E. Holt</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Feaga_L/0/1/0/all/0/1">Lori M. Feaga</a>

We report the recovery of returning Halley-type comet 12P/Pons-Brooks using
the 4.3 m Lowell Discovery Telescope, at a heliocentric distance of 11.89 au.
Comparative analysis with a dust model suggests that the comet may have been
active since $sim30$ au from the Sun. We derive a nucleus radius of $17pm6$
km from the nucleus photometry, though this number is likely an overestimation
due to the contamination from dust and gas. Continuing monitoring is encouraged
in anticipation of the comet’s forthcoming perihelion in 2024 April.

We report the recovery of returning Halley-type comet 12P/Pons-Brooks using
the 4.3 m Lowell Discovery Telescope, at a heliocentric distance of 11.89 au.
Comparative analysis with a dust model suggests that the comet may have been
active since $sim30$ au from the Sun. We derive a nucleus radius of $17pm6$
km from the nucleus photometry, though this number is likely an overestimation
due to the contamination from dust and gas. Continuing monitoring is encouraged
in anticipation of the comet’s forthcoming perihelion in 2024 April.

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