<?xml version="1.0" encoding="UTF-8"?><metadata>
            <lom:lom xmlns="http://ltsc.ieee.org/xsd/LOM" xmlns:lom="http://ltsc.ieee.org/xsd/LOM" xmlns:lomfr="http://www.lom-fr.fr/xsd/LOMFR">
                <lom:general uniqueElementName="general">
                    <lom:identifier>
                        <lom:catalog uniqueElementName="catalog">URI</lom:catalog>
                        <lom:entry uniqueElementName="entry">http://media4.obspm.fr/public/AMC/pages_recurrences-eclipses-soleil/introduction-recurrences-eclipses-soleil.html</lom:entry>
                    </lom:identifier>
                    <lom:title uniqueElementName="title">
                        <lom:string language="fre">Récurrences des éclipses de Soleil</lom:string>
                    </lom:title>
                    <lom:language>fre</lom:language>
                    <lom:description>
                        <lom:string language="fre">Dans ce chapitre nous étudions les périodes de récurrence des éclipses de Soleil. Nous voyons qu'il existe plusieurs périodes de récurrence, notamment le Saros. Nous expliquons pourquoi cette période est réellement une bonne période de récurrence en analysant les principales perturbations lunaires et en introduisant la notion de révolution anomalistique. Nous définissons ensuite les suites d'éclipses séparées par cette période de temps. Ce sont des séries longues de Saros. Nous commentons et expliquons leur évolution : évolution des types d'éclipses, évolution des magnitudes, évolution des zones de visibilité sur Terre.
Enfin nous étudions les éclipses anciennes et leur utilisation pour déterminer le ralentissement de la révolution terrestre.</lom:string>
                    </lom:description>
                    <lom:keyword>
                        <lom:string language="fre">éclipse</lom:string>
                    </lom:keyword>
                    <lom:keyword>
                        <lom:string language="fre">éclipse de Soleil</lom:string>
                    </lom:keyword>
                    <lom:keyword>
                        <lom:string language="fre">Saros</lom:string>
                    </lom:keyword>
                    <lom:keyword>
                        <lom:string language="fre">période de récurrence</lom:string>
                    </lom:keyword>
                    <lom:keyword>
                        <lom:string language="fre">éclipse partielle</lom:string>
                    </lom:keyword>
                    <lom:keyword>
                        <lom:string language="fre">éclipse centrale</lom:string>
                    </lom:keyword>
                    <lom:keyword>
                        <lom:string language="fre">canon des éclipses</lom:string>
                    </lom:keyword>
                    <lom:keyword>
                        <lom:string language="fre">éclipses homologues</lom:string>
                    </lom:keyword>
                    <lom:keyword>
                        <lom:string language="fre">éclipses anciennes</lom:string>
                    </lom:keyword>
                    <lom:keyword>
                        <lom:string language="fre">lignes de centralité</lom:string>
                    </lom:keyword>
                    <lom:structure uniqueElementName="structure">
                        <lom:source uniqueElementName="source">LOMv1.0</lom:source>
                        <lom:value uniqueElementName="value">hierarchical</lom:value>
                    </lom:structure>
                    <lom:aggregationLevel uniqueElementName="aggregationLevel">
                        <lom:source uniqueElementName="source">LOMv1.0</lom:source>
                        <lom:value uniqueElementName="value">3</lom:value>
                    </lom:aggregationLevel>
                    <lomfr:documentType>
                        <lomfr:source uniqueElementName="source">LOMFRv1.0</lomfr:source>
                        <lomfr:value uniqueElementName="value">collection</lomfr:value>
                    </lomfr:documentType>
                    <lomfr:documentType>
                        <lomfr:source uniqueElementName="source">LOMFRv1.0</lomfr:source>
                        <lomfr:value uniqueElementName="value">ressource interactive</lomfr:value>
                    </lomfr:documentType>
                    <lomfr:documentType>
                        <lomfr:source uniqueElementName="source">LOMFRv1.0</lomfr:source>
                        <lomfr:value uniqueElementName="value">texte</lomfr:value>
                    </lomfr:documentType>
                    <lomfr:documentType>
                        <lomfr:source uniqueElementName="source">LOMFRv1.0</lomfr:source>
                        <lomfr:value uniqueElementName="value">image fixe</lomfr:value>
                    </lomfr:documentType>
                    <lomfr:documentType>
                        <lomfr:source uniqueElementName="source">LOMFRv1.0</lomfr:source>
                        <lomfr:value uniqueElementName="value">image en mouvement</lomfr:value>
                    </lomfr:documentType>
                </lom:general>
                <lom:lifeCycle uniqueElementName="lifeCycle">
                    <lom:version uniqueElementName="version">
                        <lom:string language="fre">2009</lom:string>
                    </lom:version>
                    <lom:status uniqueElementName="status">
                        <lom:source uniqueElementName="source">LOMv1.0</lom:source>
                        <lom:value uniqueElementName="value">final</lom:value>
                    </lom:status>
                    <lom:contribute>
                        <lom:role uniqueElementName="role">
                            <lom:source uniqueElementName="source">LOMv1.0</lom:source>
                            <lom:value uniqueElementName="value">author</lom:value>
                        </lom:role>
                        <lom:entity>BEGIN:VCARD
VERSION:3.0
N:Rocher;Patrick
FN:Patrick Rocher
ORG:IMCCE
EMAIL;INTERNET:Patrick.Rocher@imcce.fr
END:VCARD</lom:entity>
                        <lom:date uniqueElementName="date">
                            <lom:dateTime uniqueElementName="dateTime">2008-09</lom:dateTime>
                        </lom:date>
                    </lom:contribute>
                    <lom:contribute>
                        <lom:role uniqueElementName="role">
                            <lom:source uniqueElementName="source">LOMFRv1.0</lom:source>
                            <lom:value uniqueElementName="value">contributeur</lom:value>
                        </lom:role>
                        <lom:entity>BEGIN:VCARD
VERSION:3.0
N:Moreno;Raphael
FN:Raphael Moreno
ORG:Observatoire de Paris;LESIA
EMAIL;INTERNET:Raphael.Moreno@obspm.fr
END:VCARD</lom:entity>
                        <lom:date uniqueElementName="date">
                            <lom:dateTime uniqueElementName="dateTime">2008-09</lom:dateTime>
                        </lom:date>
                    </lom:contribute>
                    <lom:contribute>
                        <lom:role uniqueElementName="role">
                            <lom:source uniqueElementName="source">LOMFRv1.0</lom:source>
                            <lom:value uniqueElementName="value">contributeur</lom:value>
                        </lom:role>
                        <lom:entity>BEGIN:VCARD
VERSION:3.0
N:Balança;Christian
FN:Christian Balança
ORG:Observatoire de Paris;LERMA
EMAIL;INTERNET:Christian.Balanca@obspm.fr
END:VCARD</lom:entity>
                        <lom:date uniqueElementName="date">
                            <lom:dateTime uniqueElementName="dateTime">2008-09</lom:dateTime>
                        </lom:date>
                    </lom:contribute>
                    <lom:contribute>
                        <lom:role uniqueElementName="role">
                            <lom:source uniqueElementName="source">LOMFRv1.0</lom:source>
                            <lom:value uniqueElementName="value">contributeur</lom:value>
                        </lom:role>
                        <lom:entity>BEGIN:VCARD
VERSION:3.0
N:Delsanti;Audrey
FN:Audrey Delsanti
ORG:Observatoire de Paris;LESIA
EMAIL;INTERNET:Audrey.Delsanti@obspm.fr
END:VCARD</lom:entity>
                        <lom:date uniqueElementName="date">
                            <lom:dateTime uniqueElementName="dateTime">2008-09</lom:dateTime>
                        </lom:date>
                    </lom:contribute>
                    <lom:contribute>
                        <lom:role uniqueElementName="role">
                            <lom:source uniqueElementName="source">LOMv1.0</lom:source>
                            <lom:value uniqueElementName="value">publisher</lom:value>
                        </lom:role>
                        <lom:entity>BEGIN:VCARD
VERSION:3.0
N:;
FN:Observatoire de Paris
ORG:Observatoire de Paris;UFE
END:VCARD</lom:entity>
                        <lom:date uniqueElementName="date">
                            <lom:dateTime uniqueElementName="dateTime">2008-10-09</lom:dateTime>
                        </lom:date>
                    </lom:contribute>
                </lom:lifeCycle>
                <lom:metaMetadata uniqueElementName="metaMetadata">
                    <lom:identifier>
                        <lom:catalog uniqueElementName="catalog">obspm</lom:catalog>
                        <lom:entry uniqueElementName="entry">UFE/AMC/stlp/recurrences-eclipses-soleil</lom:entry>
                    </lom:identifier>
                    <lom:contribute>
                        <lom:role uniqueElementName="role">
                            <lom:source uniqueElementName="source">LOMv1.0</lom:source>
                            <lom:value uniqueElementName="value">creator</lom:value>
                        </lom:role>
                        <lom:entity>BEGIN:VCARD
VERSION:3.0
N:Guillaume;Damien
FN:Damien Guillaume
ORG:Observatoire de Paris;UFE
EMAIL;INTERNET:Damien.Guillaume@obspm.fr
END:VCARD</lom:entity>
                        <lom:date uniqueElementName="date">
                            <lom:dateTime uniqueElementName="dateTime">2010-03-02</lom:dateTime>
                        </lom:date>
                    </lom:contribute>
                    <lom:metadataSchema>LOMv1.0</lom:metadataSchema>
                    <lom:metadataSchema>LOMFRv1.0</lom:metadataSchema>
                    <lom:language>fre</lom:language>
                </lom:metaMetadata>
                <lom:technical uniqueElementName="technical">
                    <lom:format>text/html</lom:format>
                    <lom:location>http://media4.obspm.fr/public/AMC/pages_recurrences-eclipses-soleil/introduction-recurrences-eclipses-soleil.html</lom:location>
                    <lom:requirement>
                        <lom:orComposite>
                            <lom:type uniqueElementName="type">
                                <lom:source uniqueElementName="source">LOMv1.0</lom:source>
                                <lom:value uniqueElementName="value">operating system</lom:value>
                            </lom:type>
                            <lom:name uniqueElementName="name">
                                <lom:source uniqueElementName="source">LOMv1.0</lom:source>
                                <lom:value uniqueElementName="value">multi-os</lom:value>
                            </lom:name>
                        </lom:orComposite>
                    </lom:requirement>
                    <lom:requirement>
                        <lom:orComposite>
                            <lom:type uniqueElementName="type">
                                <lom:source uniqueElementName="source">LOMv1.0</lom:source>
                                <lom:value uniqueElementName="value">browser</lom:value>
                            </lom:type>
                            <lom:name uniqueElementName="name">
                                <lom:source uniqueElementName="source">LOMv1.0</lom:source>
                                <lom:value uniqueElementName="value">any</lom:value>
                            </lom:name>
                        </lom:orComposite>
                    </lom:requirement>
                    <lom:otherPlatformRequirements>
                        <lom:string language="fre">Java 1.1 ou ultérieur</lom:string>
                    </lom:otherPlatformRequirements>
                </lom:technical>
                <lom:educational>
                    <lom:learningResourceType>
                        <lom:source uniqueElementName="source">LOMv1.0</lom:source>
                        <lom:value uniqueElementName="value">lecture</lom:value>
                    </lom:learningResourceType>
                    <lom:learningResourceType>
                        <lom:source uniqueElementName="source">LOMv1.0</lom:source>
                        <lom:value uniqueElementName="value">exercise</lom:value>
                    </lom:learningResourceType>
                    <lom:intendedEndUserRole>
                        <lom:source uniqueElementName="source">LOMv1.0</lom:source>
                        <lom:value uniqueElementName="value">learner</lom:value>
                    </lom:intendedEndUserRole>
                    <lom:context>
                        <lom:source uniqueElementName="source">LOMv1.0</lom:source>
                        <lom:value uniqueElementName="value">higher education</lom:value>
                    </lom:context>
                    <lom:context>
                        <lom:source uniqueElementName="source">LOMFRv1.0</lom:source>
                        <lom:value uniqueElementName="value">licence</lom:value>
                    </lom:context>
                    <lom:typicalAgeRange>
                        <lom:string language="fre">18+</lom:string>
                    </lom:typicalAgeRange>
                    <lom:difficulty uniqueElementName="difficulty">
                        <lom:source uniqueElementName="source">LOMv1.0</lom:source>
                        <lom:value uniqueElementName="value">very difficult</lom:value>
                    </lom:difficulty>
                    <lom:typicalLearningTime uniqueElementName="typicalLearningTime">
                        <lom:duration uniqueElementName="duration">PT3H</lom:duration>
                    </lom:typicalLearningTime>
                    <lom:description>
                        <lom:string language="fre">Auto-formation ou formation en ligne</lom:string>
                    </lom:description>
                    <lom:language>fre</lom:language>
                    <lomfr:activity>
                        <lomfr:source uniqueElementName="source">LOMFRv1.0</lomfr:source>
                        <lomfr:value uniqueElementName="value">apprendre</lomfr:value>
                    </lomfr:activity>
                    <lomfr:activity>
                        <lomfr:source uniqueElementName="source">LOMFRv1.0</lomfr:source>
                        <lomfr:value uniqueElementName="value">s'exercer</lomfr:value>
                    </lomfr:activity>
                    <lomfr:activity>
                        <lomfr:source uniqueElementName="source">LOMFRv1.0</lomfr:source>
                        <lomfr:value uniqueElementName="value">s'auto-former</lomfr:value>
                    </lomfr:activity>
                    <lomfr:activity>
                        <lomfr:source uniqueElementName="source">LOMFRv1.0</lomfr:source>
                        <lomfr:value uniqueElementName="value">se former</lomfr:value>
                    </lomfr:activity>
                    <lomfr:credit>
                        <lom:string language="fre">0,3 ECTS</lom:string>
                    </lomfr:credit>
                </lom:educational>
                <lom:rights uniqueElementName="rights">
                    <lom:cost uniqueElementName="cost">
                        <lom:source uniqueElementName="source">LOMv1.0</lom:source>
                        <lom:value uniqueElementName="value">no</lom:value>
                    </lom:cost>
                    <lom:copyrightAndOtherRestrictions uniqueElementName="copyrightAndOtherRestrictions">
                        <lom:source uniqueElementName="source">LOMv1.0</lom:source>
                        <lom:value uniqueElementName="value">yes</lom:value>
                    </lom:copyrightAndOtherRestrictions>
                    <lom:description uniqueElementName="description">
                        <lom:string language="fre">Les contenus du site appartiennent à l'Observatoire de Paris sauf mention contraire explicite (indiquée dans le crédit pour les images).
Ces contenus appartenant à l'Observatoire de Paris peuvent être réutilisés sans qu'il soit nécessaire de demander notre autorisation pour des activités pédagogiques non commerciales. Pour toute autre utilisation, il est nécessaire de demander notre autorisation. Dans tous les cas, n'oubliez pas de respecter les droits d'auteurs.</lom:string>
                    </lom:description>
                </lom:rights>
                <lom:relation>
                    <lom:kind uniqueElementName="kind">
                        <lom:source uniqueElementName="source">LOMv1.0</lom:source>
                        <lom:value uniqueElementName="value">ispartof</lom:value>
                    </lom:kind>
                    <lom:resource uniqueElementName="resource">
                        <lom:identifier>
                            <lom:catalog uniqueElementName="catalog">URI</lom:catalog>
                            <lom:entry uniqueElementName="entry">http://media4.obspm.fr/public/AMC/pages_stlp/introduction-stlp.html</lom:entry>
                        </lom:identifier>
                        <lom:description uniqueElementName="description">
                            <lom:string language="fre">Les phénomènes Soleil-Terre-Lune</lom:string>
                        </lom:description>
                    </lom:resource>
                </lom:relation>
                <lom:classification>
                    <lom:purpose>
                        <lom:source>LOMv1.0</lom:source>
                        <lom:value>discipline</lom:value>
                    </lom:purpose>
                    <lom:taxonPath>
                        <lom:source>
                            <lom:string language="fre">ThoKaVi v2.0</lom:string>
                        </lom:source>
                        <lom:taxon>
                            <lom:id>1</lom:id>
                            <lom:entry>
                                <lom:string language="fre">Sciences de la Terre</lom:string>
                            </lom:entry>
                        </lom:taxon>
                        <lom:taxon>
                            <lom:id>1:5</lom:id>
                            <lom:entry>
                                <lom:string language="fre">Planétologie et astronomie</lom:string>
                            </lom:entry>
                        </lom:taxon>
                        <lom:taxon>
                            <lom:id>1:5:2</lom:id>
                            <lom:entry>
                                <lom:string language="fre">Système Solaire</lom:string>
                            </lom:entry>
                        </lom:taxon>
                        <lom:taxon>
                            <lom:id>1:5:2:5</lom:id>
                            <lom:entry>
                                <lom:string language="fre">Soleil</lom:string>
                            </lom:entry>
                        </lom:taxon>
                    </lom:taxonPath>
                    <lom:taxonPath>
                        <lom:source>
                            <lom:string language="fre">ThoKaVi v2.0</lom:string>
                        </lom:source>
                        <lom:taxon>
                            <lom:id>1</lom:id>
                            <lom:entry>
                                <lom:string language="fre">Sciences de la Terre</lom:string>
                            </lom:entry>
                        </lom:taxon>
                        <lom:taxon>
                            <lom:id>1:5</lom:id>
                            <lom:entry>
                                <lom:string language="fre">Planétologie et astronomie</lom:string>
                            </lom:entry>
                        </lom:taxon>
                        <lom:taxon>
                            <lom:id>1:5:3</lom:id>
                            <lom:entry>
                                <lom:string language="fre">Mécanique céleste</lom:string>
                            </lom:entry>
                        </lom:taxon>
                        <lom:taxon>
                            <lom:id>1:5:3:3</lom:id>
                            <lom:entry>
                                <lom:string language="fre">Orbites et évolution orbitale</lom:string>
                            </lom:entry>
                        </lom:taxon>
                    </lom:taxonPath>
                </lom:classification>
                <lom:classification>
                    <lom:purpose>
                        <lom:source>LOMv1.0</lom:source>
                        <lom:value>discipline</lom:value>
                    </lom:purpose>
                    <lom:taxonPath>
                        <lom:source>
                            <lom:string language="fre">CheBoCar v2.0</lom:string>
                        </lom:source>
                        <lom:taxon>
                            <lom:id>2</lom:id>
                            <lom:entry>
                                <lom:string language="fre">Physique</lom:string>
                            </lom:entry>
                        </lom:taxon>
                        <lom:taxon>
                            <lom:id>2:1</lom:id>
                            <lom:entry>
                                <lom:string language="fre">Mécanique</lom:string>
                            </lom:entry>
                        </lom:taxon>
                        <lom:taxon>
                            <lom:id>2:1:5</lom:id>
                            <lom:entry>
                                <lom:string language="fre">Mécanique céleste</lom:string>
                            </lom:entry>
                        </lom:taxon>
                        <lom:taxon>
                            <lom:id>2:1:5:6</lom:id>
                            <lom:entry>
                                <lom:string language="fre">Éclipses</lom:string>
                            </lom:entry>
                        </lom:taxon>
                    </lom:taxonPath>
                    <lom:taxonPath>
                        <lom:source>
                            <lom:string language="fre">CheBoCar v2.0</lom:string>
                        </lom:source>
                        <lom:taxon>
                            <lom:id>2</lom:id>
                            <lom:entry>
                                <lom:string language="fre">Physique</lom:string>
                            </lom:entry>
                        </lom:taxon>
                        <lom:taxon>
                            <lom:id>2:7</lom:id>
                            <lom:entry>
                                <lom:string language="fre">Physique à l'échelle astronomique</lom:string>
                            </lom:entry>
                        </lom:taxon>
                        <lom:taxon>
                            <lom:id>2:7:1</lom:id>
                            <lom:entry>
                                <lom:string language="fre">Mécanique céleste</lom:string>
                            </lom:entry>
                        </lom:taxon>
                        <lom:taxon>
                            <lom:id>2:7:1:6</lom:id>
                            <lom:entry>
                                <lom:string language="fre">Éclipses</lom:string>
                            </lom:entry>
                        </lom:taxon>
                    </lom:taxonPath>
                </lom:classification>
                <lom:classification>
                    <lom:purpose>
                        <lom:source>LOMv1.0</lom:source>
                        <lom:value>discipline</lom:value>
                    </lom:purpose>
                    <lom:taxonPath>
                        <lom:source>
                            <lom:string language="fre">CDD 22e éd.</lom:string>
                            <lom:string language="eng">DDC 22nd ed</lom:string>
                        </lom:source>
                        <lom:taxon>
                            <lom:id>523.99</lom:id>
                            <lom:entry>
                                <lom:string language="fre">Éclipses, passages, occultations</lom:string>
                                <lom:string language="eng">Eclipses, transits, occultations</lom:string>
                            </lom:entry>
                        </lom:taxon>
                    </lom:taxonPath>
                    <lom:taxonPath>
                        <lom:source>
                            <lom:string language="fre">CDD 22e éd.</lom:string>
                            <lom:string language="eng">DDC 22nd ed</lom:string>
                        </lom:source>
                        <lom:taxon>
                            <lom:id>523.7</lom:id>
                            <lom:entry>
                                <lom:string language="fre">Soleil</lom:string>
                                <lom:string language="eng">Sun</lom:string>
                            </lom:entry>
                        </lom:taxon>
                    </lom:taxonPath>
                </lom:classification>
            </lom:lom>
        </metadata>