The Ongoing Decline in Activity of Comet 103P/Hartley 2

We report photometric observations of Comet 103P/Hartley 2 during its 2023 apparition. Our campaign, conducted from August through 2023 December, combined data from a global network of citizen astronomers coordinated by Unistellar and the Association Française d’Astronomie. Photometry was derived us...

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Main Authors:	Ariel Graykowski, Guillaume Langin, David Chiron, Bruno Guillet, Franck Marchis, Nicolas Biver, Gérard Arlic, Bernard Baudouin, Etienne Bertrand, Randall Blake, Cyrille Bosquet, John K. Bradley, Isabelle Brocard, Christophe Cac, Alain Cagna, Nicolas Castel, Eric Chariot, Olivier Clerget, Tom Coarrase, Lucas Cogniaux, Julien Collot, Christophe Coté, Michel Deconinck, Jean-Paul Desgrees, Josselin Desmars, Giuseppe Di Tommaso, José Donas, William Drapeaud, Todd Forrester, Florent Fremont, Keiichi Fukui, Paul Garde, Jérôme Gaudilliere, Pascal Gaudin, Alexis Giacomoni, David Gineste, Patrice Girard, Jean Claude Gomez, Chuck Goodman, Gerard-Philippe Grandjean, Philippe Guiglion, David Havell, Patrick Huth, Kachi Iwai, Marc-Etienne Julien, Rachel Knight, Ryuichi Kukita, Petri Kuossari, Jean-Michel Ladruze, Anis Ben Lassoued, Cédric Latgé, Jean-Marie Laugier, Matthieu Lauvernier, Patrice Le Guen, Jean-Charles Le Tarnec, Didier Lefoulon, Liouba Leroux, Niniane Leroux, Arnaud Leroy, Chelsey Logan, Yohann Lorand, Elisabeth Maris, Jean-Pierre Masini, Nicola Meneghelli, Laurent Millart, Eric Miny, Mike Mitchell, Baptiste Montoya, Fabrice Mortecrette, Anouchka Nardi, Antoine Ngo, Denis Nicolas, Raphael Nicollerat, Takaya Okada, Wataru Ono, George Patatoukas, Jacqueline Payet-Ayrault, Patrick Picard, Claude Porchel, Kanai Potts, Michel Quienen, Martial Relier, Fabien Richardot, Darren Rivett, Matthew Ryno, Fadi Saibi, Sophie Saibi, Christian Sartini, Hiromichi Sasaki, Philippe Seibert, Masao Shimizu, Lucas Sifoni, Georges Simard, Petri Tikkanen, Ian Transom, Bernard Tregon, Frank Tyrlik, Laurent Vadrot, Michel Veuillet, Christian Voirol, Stefan Will, Corine Yahia, Phil Yehle, Neil Yoblonsky, Wai-Chun Yue
Format:	Artigo
Language:	Inglês
Published:	IOP Publishing 2025-01-01
Series:	The Planetary Science Journal
Subjects:	Comets Observational astronomy
Online Access:	https://doi.org/10.3847/PSJ/ae018e
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