{"id":13772,"date":"2021-03-23T19:33:34","date_gmt":"2021-03-23T19:33:34","guid":{"rendered":"https:\/\/blogs.futura-sciences.com\/feldmann\/?p=13772"},"modified":"2024-10-16T09:12:56","modified_gmt":"2024-10-16T09:12:56","slug":"interview-michel-ory-astronome-amateur-et-chasseur-de-cometes","status":"publish","type":"post","link":"https:\/\/blogs.futura-sciences.com\/feldmann\/2021\/03\/23\/interview-michel-ory-astronome-amateur-et-chasseur-de-cometes\/","title":{"rendered":"Interview : Michel Ory, chasseur de com\u00e8tes (et d&#8217;ast\u00e9ro\u00efdes)"},"content":{"rendered":"<p><strong>L&#8217;astronome amateur suisse Michel Ory r\u00e9pond \u00e0 nos questions \u00e0 l&#8217;occasion de la sortie de son livre : <em>Chasseur de com\u00e8tes, la qu\u00eate de nos origines<\/em>.<\/strong><\/p>\n<p>Michel Ory est un astronome amateur combl\u00e9. Lorsqu&#8217;il n&#8217;est pas devant ses \u00e9l\u00e8ves pour leur enseigner la physique, cet ancien journaliste scientifique suisse traque les ast\u00e9ro\u00efdes et les com\u00e8tes. Son palmar\u00e8s est \u00e9loquent : il a d\u00e9couvert plus de 200 ast\u00e9ro\u00efdes, deux com\u00e8tes et deux supernov\u00e6.<\/p>\n<figure id=\"attachment_13774\" aria-describedby=\"caption-attachment-13774\" style=\"width: 400px\" class=\"wp-caption alignnone\"><a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2021\/03\/michel4.jpg\" rel=\"lightbox[13772]\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-13774\" src=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2021\/03\/michel4-400x450.jpg\" alt=\"\" width=\"400\" height=\"450\" srcset=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2021\/03\/michel4-400x450.jpg 400w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2021\/03\/michel4-768x864.jpg 768w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2021\/03\/michel4.jpg 800w\" sizes=\"auto, (max-width: 400px) 100vw, 400px\" \/><\/a><figcaption id=\"caption-attachment-13774\" class=\"wp-caption-text\">L&#8217;astronome amateur suisse Michel Ory.\u00a9 Michel Ory<\/figcaption><\/figure>\n<p>Des d\u00e9couvertes r\u00e9alis\u00e9es \u00e0 l\u2019<a href=\"https:\/\/sag-sas.ch\/sternwarten-und-planetarien\/observatoire-astronomique-jurassien\/\" target=\"_blank\" rel=\"noopener\">Observatoire astronomique jurassien de Vicques<\/a> en Suisse (2000-2011) et \u00e0 l\u2019<a href=\"https:\/\/www.trappist.uliege.be\/cms\/c_5285930\/fr\/trappist-site\" target=\"_blank\" rel=\"noopener\">Observatoire de l\u2019Ouka\u00efmeden<\/a> au Maroc (d\u00e8s 2011). Auteur de <em>Chasseur d&#8217;ast\u00e9ro\u00efdes<\/em> en 2019 (\u00e9ditions Le Pommier), il a sorti un second ouvrage en 2021, <a href=\"https:\/\/www.deboecksuperieur.com\/ouvrage\/9782807334908-chasseur-de-cometes\" target=\"_blank\" rel=\"noopener\"><em>Chasseur de com\u00e8tes, la qu\u00eate de nos origines<\/em><\/a>.<!--more--><\/p>\n<h5>Pourquoi les com\u00e8tes font-elles tant r\u00eaver ?<\/h5>\n<p><strong>M. O.<\/strong> : ce sont des apparitions c\u00e9lestes \u00e9ph\u00e9m\u00e8res qui ont fascin\u00e9 toutes les grandes civilisations (lire par exemple : <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2020\/12\/28\/une-comete-permet-de-dater-la-mort-dune-imperatrice-byzantine\/\" target=\"_blank\" rel=\"noopener\">Une com\u00e8te permet de dater la mort d&#8217;une imp\u00e9ratrice byzantine<\/a>). Les com\u00e8tes sont un peu comme les dinosaures : les deux exercent une fascination manifeste sur les foules. Tout enfant, de tout pays, de toute culture, a les yeux qui brillent lorsqu\u2019on lui montre une photographie de dinosaure ou de com\u00e8te. Il n\u2019a aucun mal \u00e0 les dessiner. Ces sujets de science sont devenus au fil du temps des \u00e9l\u00e9ments de la culture populaire.<\/p>\n<figure id=\"attachment_13775\" aria-describedby=\"caption-attachment-13775\" style=\"width: 337px\" class=\"wp-caption alignnone\"><a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2021\/03\/michel3.jpg\" rel=\"lightbox[13772]\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-13775\" src=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2021\/03\/michel3-337x450.jpg\" alt=\"\" width=\"337\" height=\"450\" srcset=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2021\/03\/michel3-337x450.jpg 337w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2021\/03\/michel3-768x1024.jpg 768w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2021\/03\/michel3.jpg 800w\" sizes=\"auto, (max-width: 337px) 100vw, 337px\" \/><\/a><figcaption id=\"caption-attachment-13775\" class=\"wp-caption-text\">Les dessins techniques et humoristiques de Pitch Comment illustrent le dernier ouvrage de Michel Ory, Chasseur de com\u00e8tes.<\/figcaption><\/figure>\n<h5>Que nous dit la science moderne ?<\/h5>\n<p><strong>M. O.<\/strong> : la science moderne a permis de comprendre que ces petits astres glac\u00e9s, venus des tr\u00e9fonds du Syst\u00e8me solaire et rest\u00e9s \u00e0 leur \u00e9tat originel, ont apport\u00e9 une partie de l\u2019eau des oc\u00e9ans. \u00c0 l\u2019inverse, plus tard, quelques autres collisions ont conduit aux plus grandes extinctions de masse des esp\u00e8ces vivantes. En r\u00e9sum\u00e9, et sans trop se tromper, on peut donc affirmer que les com\u00e8tes ont sem\u00e9 la vie et la mort sur notre plan\u00e8te. Rien que cela&#8230;<\/p>\n<figure id=\"attachment_19210\" aria-describedby=\"caption-attachment-19210\" style=\"width: 450px\" class=\"wp-caption alignnone\"><a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2024\/03\/comet2-2.jpg\" rel=\"lightbox[13772]\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-19210\" src=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2024\/03\/comet2-2-450x271.jpg\" alt=\"\" width=\"450\" height=\"271\" srcset=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2024\/03\/comet2-2-450x271.jpg 450w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2024\/03\/comet2-2-1024x616.jpg 1024w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2024\/03\/comet2-2-768x462.jpg 768w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2024\/03\/comet2-2.jpg 1500w\" sizes=\"auto, (max-width: 450px) 100vw, 450px\" \/><\/a><figcaption id=\"caption-attachment-19210\" class=\"wp-caption-text\">Observer une belle com\u00e8te (ici Neowise en juillet 2020 sous le ciel \u00e9toil\u00e9 du Morvan) est un moment inoubliable. \u00a9 Jean-Baptiste Feldmann<\/figcaption><\/figure>\n<h5>Quand avez-vous d\u00e9couvert votre premi\u00e8re com\u00e8te ?<\/h5>\n<p><strong>M. O.<\/strong> : c&#8217;\u00e9tait en ao\u00fbt 2008 en Suisse, \u00e0 l&#8217;Observatoire de Vicques. Durant une semaine, j\u2019ai \u00e9t\u00e9 en orbite comme l\u2019astre chevelu que je venais de rep\u00e9rer. Je ne r\u00e9alisais pas encore \u00e0 ce moment-l\u00e0 que tr\u00e8s peu d\u2019amateurs avaient d\u00e9couvert des com\u00e8tes p\u00e9riodiques. On en recense seulement 409, et la mienne s&#8217;appelle 304P\/Ory. Quant \u00e0 ma seconde com\u00e8te, C\/2013 V5 , je l\u2019ai d\u00e9couverte fin 2013 \u00e0 l\u2019Oukaimeden. Elle \u00e9tait proche de <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2020\/09\/23\/la-sonde-juno-immortalise-lombre-de-io-sur-jupiter\/\" target=\"_blank\" rel=\"noopener\">Jupiter<\/a> le jour de la d\u00e9couverte et j\u2019ai pens\u00e9 que c\u2019\u00e9tait peut-\u00eatre une de ses lunes. Eller est devenue l\u2019une des deux plus brillantes com\u00e8tes visibles en 2014 !<\/p>\n<figure id=\"attachment_13777\" aria-describedby=\"caption-attachment-13777\" style=\"width: 450px\" class=\"wp-caption alignnone\"><a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2021\/03\/michel2.jpg\" rel=\"lightbox[13772]\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-13777\" src=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2021\/03\/michel2-450x444.jpg\" alt=\"\" width=\"450\" height=\"444\" srcset=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2021\/03\/michel2-450x444.jpg 450w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2021\/03\/michel2-768x758.jpg 768w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2021\/03\/michel2.jpg 888w\" sizes=\"auto, (max-width: 450px) 100vw, 450px\" \/><\/a><figcaption id=\"caption-attachment-13777\" class=\"wp-caption-text\">La seconde com\u00e8te d\u00e9couverte par Michel Ory est C\/2013 V5. \u00a9 Damian Peach<\/figcaption><\/figure>\n<h5>Est-il facile de d\u00e9couvrir une com\u00e8te aujourd&#8217;hui ?<\/h5>\n<p><strong>M. O.<\/strong> : pas vraiment, surtout depuis une dizaine d\u2019ann\u00e9es, avec le d\u00e9veloppement des r\u00e9seaux de t\u00e9lescopes robotis\u00e9s, les fameux <em>Surveys<\/em> (voir par exemple le <a href=\"https:\/\/www.futura-sciences.com\/sciences\/actualites\/telescope-geant-telescope-geant-lsst-va-traquer-matiere-energie-noires-57902\/\" target=\"_blank\" rel=\"noopener\">LSST<\/a>). Mais je pense qu&#8217;avec beaucoup d\u2019abn\u00e9gation et de m\u00e9thode, c\u2019est n\u00e9anmoins toujours possible. Depuis l\u2019an 2000, j\u2019ai d\u00e9couvert deux com\u00e8tes et deux supernov\u00e6 en recherchant des ast\u00e9ro\u00efdes.<\/p>\n<figure id=\"attachment_20292\" aria-describedby=\"caption-attachment-20292\" style=\"width: 450px\" class=\"wp-caption alignnone\"><a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2024\/10\/comet2.jpg\" rel=\"lightbox[13772]\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-20292\" src=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2024\/10\/comet2-450x270.jpg\" alt=\"\" width=\"450\" height=\"270\" srcset=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2024\/10\/comet2-450x270.jpg 450w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2024\/10\/comet2-1024x615.jpg 1024w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2024\/10\/comet2-768x461.jpg 768w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2024\/10\/comet2.jpg 1500w\" sizes=\"auto, (max-width: 450px) 100vw, 450px\" \/><\/a><figcaption id=\"caption-attachment-20292\" class=\"wp-caption-text\">La com\u00e8te C\/2023 A3 Tsuchinshan-ATLAS le 13 octobre 2024 en train de glisser derri\u00e8re Oingt en Beaujolais, l&#8217;un des plus beaux villages de France. \u00a9 Jean-Baptiste Feldmann<\/figcaption><\/figure>\n<h5>Car vous \u00eates avant tout un chercheur d&#8217;ast\u00e9ro\u00efdes ?<\/h5>\n<p><strong>M. O.<\/strong> : c&#8217;est exact ! J&#8217;en ai d\u00e9couvert un peu plus de deux cent ! Pour les com\u00e8tes, c&#8217;est un peu par hasard. Les sp\u00e9cialistes pr\u00e9tendaient il y a quelques ann\u00e9es qu\u2019un chasseur d\u2019<a href=\"https:\/\/www.futura-sciences.com\/sciences\/definitions\/asteroide-asteroide-870\/\" target=\"_blank\" rel=\"noopener\">ast\u00e9ro\u00efdes<\/a> devait en trouver cent avant de d\u00e9crocher \u00ab sa \u00bb com\u00e8te. C\u2019est un rapport d\u00e9courageant, qui impose \u00e0 tout observateur de sonder durant des ann\u00e9es les recoins du Syst\u00e8me solaire pour avoir une chance de d\u00e9couvrir une com\u00e8te. Je suis parfaitement dans la moyenne, avec un peu plus de deux cents ast\u00e9ro\u00efdes d\u00e9couverts pour deux nouvelles com\u00e8tes !<\/p>\n<figure id=\"attachment_13776\" aria-describedby=\"caption-attachment-13776\" style=\"width: 450px\" class=\"wp-caption alignnone\"><a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2021\/03\/michel1.jpg\" rel=\"lightbox[13772]\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-13776\" src=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2021\/03\/michel1-450x300.jpg\" alt=\"\" width=\"450\" height=\"300\" srcset=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2021\/03\/michel1-450x300.jpg 450w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2021\/03\/michel1-1024x683.jpg 1024w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2021\/03\/michel1-768x512.jpg 768w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2021\/03\/michel1.jpg 1335w\" sizes=\"auto, (max-width: 450px) 100vw, 450px\" \/><\/a><figcaption id=\"caption-attachment-13776\" class=\"wp-caption-text\">Michel Ory au t\u00e9lescope de l\u2019Observatoire de l\u2019Ouka\u00efmeden au Maroc. \u00a9 Michel Ory<\/figcaption><\/figure>\n<h5>Que raconte votre dernier ouvrage ?<\/h5>\n<p><strong>M. O.<\/strong> : dans <em>Chasseur de com\u00e8tes, la qu\u00eate de nos origines<\/em>, je parle de la nature physique et chimique des com\u00e8tes, de leur origine, de l\u2019art et la mani\u00e8re de les d\u00e9tecter et les observer. Je r\u00e9ponds \u00e9galement \u00e0 quelques questions plus cibl\u00e9es. Combien en a-t-on observ\u00e9 ? Qui recense ces objets et qui leur attribue leur nom de bapt\u00eame ? Quels attributs faut-il pour devenir une grande com\u00e8te ? Les astronomes, pass\u00e9s et pr\u00e9sents, constitueront le fil conducteur de la narration, puisque la personne qui d\u00e9couvre une com\u00e8te y donne son nom <em>ad vitam \u00e6ternam<\/em>. Je me ferai le conteur de leurs histoires, souvent insolites, toujours instructives. J\u2019ai mis au c\u0153ur de cet ouvrage la communaut\u00e9 des observateurs amateurs. C\u2019est une mani\u00e8re pour moi de leur rendre hommage, eux qui ont travaill\u00e9 ou qui travaillent encore dans l\u2019ombre, sans autre motivation que leur passion du ciel \u00e9toil\u00e9.<\/p>\n<p><a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2021\/03\/michel6.jpg\" rel=\"lightbox[13772]\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-13783\" src=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2021\/03\/michel6-321x450.jpg\" alt=\"\" width=\"321\" height=\"450\" srcset=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2021\/03\/michel6-321x450.jpg 321w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2021\/03\/michel6.jpg 357w\" sizes=\"auto, (max-width: 321px) 100vw, 321px\" \/><\/a><\/p>\n<p><em><strong>Chasseur de com\u00e8tes, la qu\u00eate de nos origines<\/strong><\/em>,\u00a0Editions De Boeck Sup\u00e9rieur,\u00a0Pr\u00e9face de Michel Mayor (<a href=\"https:\/\/www.futura-sciences.com\/sciences\/actualites\/exoplanetes-prix-nobel-physique-2019-recompense-pionniers-exoplanetes-big-bang-77844\/\" target=\"_blank\" rel=\"noopener\">Prix Nobel de physique 2019<\/a>), dessins techniques et humoristiques de <a href=\"https:\/\/twitter.com\/PitchComment?ref_src=twsrc%5Egoogle%7Ctwcamp%5Eserp%7Ctwgr%5Eauthor\" target=\"_blank\" rel=\"noopener\">Pitch Comment<\/a>, nombreuses photographies de com\u00e8tes, 192 pages, 19 Euros.<\/p>\n<h5>Vous pourriez aimer :<\/h5>\n<ul>\n<li><a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2024\/10\/14\/la-comete-tsuchinshan-atlas-au-dessus-du-village-d-oingt\/\" target=\"_blank\" rel=\"noopener\">La com\u00e8te Tsuchinshan-ATLAS au-dessus du village d\u2019Oingt<\/a><\/li>\n<li><a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2024\/10\/09\/comment-immortaliser-la-comete-tsuchinshan-atlas\/\" target=\"_blank\" rel=\"noopener\">Comment immortaliser la com\u00e8te Tsuchinshan-ATLAS<\/a><\/li>\n<li><a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2023\/08\/04\/en-video-un-morceau-de-comete-se-desintegre\/\" target=\"_blank\" rel=\"noopener\">En vid\u00e9o : un morceau de com\u00e8te se d\u00e9sint\u00e8gre<\/a><\/li>\n<\/ul>\n<p>Suivez l\u2019actualit\u00e9 astronomique et d\u00e9couvrez mes images du ciel en vous abonnant \u00e0 Cielmania sur <a href=\"https:\/\/www.facebook.com\/cielmania\/\" target=\"_blank\" rel=\"noopener noreferrer\">Facebook<\/a>.<\/p>\n<!-- AddThis Advanced Settings generic via filter on the_content --><!-- AddThis Share Buttons generic via filter on the_content -->","protected":false},"excerpt":{"rendered":"<p>L&#8217;astronome amateur suisse Michel Ory r\u00e9pond \u00e0 nos questions \u00e0 l&#8217;occasion de la sortie de son livre : Chasseur de com\u00e8tes, la qu\u00eate de nos origines. Michel Ory est un astronome amateur combl\u00e9. Lorsqu&#8217;il n&#8217;est pas devant ses \u00e9l\u00e8ves pour leur enseigner la physique, cet ancien journaliste scientifique suisse traque les ast\u00e9ro\u00efdes et les com\u00e8tes. &hellip; <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2021\/03\/23\/interview-michel-ory-astronome-amateur-et-chasseur-de-cometes\/\" class=\"more-link\">Continuer la lecture de <span class=\"screen-reader-text\">Interview : Michel Ory, chasseur de com\u00e8tes (et d&#8217;ast\u00e9ro\u00efdes)<\/span>  <span class=\"meta-nav\">&rarr;<\/span><\/a><!-- AddThis Advanced Settings generic via filter on get_the_excerpt --><!-- AddThis Share Buttons generic via filter on get_the_excerpt --><\/p>\n","protected":false},"author":8,"featured_media":13788,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_links_to":"","_links_to_target":""},"categories":[87],"tags":[240,93,3008],"class_list":["post-13772","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-les-hommes-et-le-ciel","tag-asteroide","tag-comete","tag-michel-ory"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.1 - 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