{"id":5046,"date":"2012-10-23T09:56:20","date_gmt":"2012-10-23T08:56:20","guid":{"rendered":"http:\/\/outters.fr\/?p=5046"},"modified":"2025-07-15T17:04:15","modified_gmt":"2025-07-15T16:04:15","slug":"chaine-de-markarian","status":"publish","type":"post","link":"https:\/\/www.outters.fr\/?p=5046","title":{"rendered":"Chaine de Markarian"},"content":{"rendered":"

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m86 – m87 – Chaine de Markarian<\/strong>
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\"m86<\/a><\/span><\/div><\/div><\/div>
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Commentaires sur l’objet photographi\u00e9<\/span><\/p><\/h1><\/span>

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\"outters-nicolas\"Voici une partie de la chaine de Markarian avec d\u00e9j\u00e0 pas mal de petites galaxies environnantes ! J’aime bien cette r\u00e9gion l\u00e0 et un gros capeur comme le 16803 aide bien \u00e0 avoir et la
\nr\u00e9solution \u00e0 1m de focale de la TEC140 et le champs du capteur de la Finger Lakes.
\nJ’ai encore du mal \u00e0 trouver les bons temps de pose de la FLI pour obtenir les couleurs
\nmais \u00e0 premi\u00e8re vue il va falloir augmenter ce temps unitaire, l’antiblooming de la Proline
\nva me permettre des temps de pose plus long sans soucis.<\/p>\n<\/div>

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Image lrgb<\/h2><\/a><\/div><\/div><\/div>
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Donn\u00e9es techniques
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Donn\u00e9es techniques de prise de vue<\/h2><\/div>
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Object : M86-M87 and co…
\nCommon name : Chaine de Markarian
\nDate : du 6 au 15 avril 2010
\nTime : 21 h
\nOptics :TEC140 F7
\nMount : Paramount ME Num\u00e9ro 2
\nLocation : Orange Observatory
\nSeeing : FWHM de 2,8 \u00e0 3 arc sec\/pixel (ccdinspector)
\nCcd : FLI Proline 16803
\nfilter wheel : FLI
\nfilters : Astrodon 50 mm carr\u00e9s RGB true color
\nFocuser :Robofocus et focusmax
\nTemp. out : 5 \u00b0
\nTemp ccd : -35\u00b0
\nTotal exposure :10 h 40
\nLuminance : 46 x 10 mn bining 1×1
\nrouge: 12 x 5 mn bining 2×2
\nvert : 12 x 5 mn bining 2×2
\nBleu : 12 x 5 mn bining 2×2<\/div><\/div><\/div>
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Donn\u00e9es scientifiques<\/h2><\/div>
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La cha\u00eene de Markarian<\/b> est un ensemble de galaxies<\/a> appartenant \u00e0 l’amas de la Vierge<\/a>. Elle est nomm\u00e9e d’apr\u00e8s Benjamin Markarian<\/a> qui a d\u00e9couvert qu’elles \u00e9taient anim\u00e9es d’un mouvement commun. La cha\u00eene comprend sept galaxies dont M84<\/b> (NGC 4374), M86<\/b> (NGC 4406), NGC 4477<\/b>, NGC 4473<\/b>, NGC 4461<\/b>, NGC 4458<\/b>, NGC 4438<\/b> et NGC 4435<\/b><\/span>[Quoi\u00a0?]<\/a><\/sup>. D’autres galaxies sont visibles dans le champ visuel mais ne font pas partie de cette association.<\/p>\n\n\n\n\n\n\n\n\n\n\n
Donn\u00e9es d\u2019observation
\n(\u00c9poque<\/a> J2000.0<\/a>)<\/small><\/th>\n<\/tr>\n
Constellation<\/a><\/th>\nVierge<\/a><\/td>\n<\/tr>\n
Ascension droite<\/a> (\u03b1)<\/th>\n12h<\/sup>\u00a057m<\/sup><\/td>\n<\/tr>\n
D\u00e9clinaison<\/a> (\u03b4)<\/th>\n+13\u00b0\u00a010\u2032<\/td>\n<\/tr>\n
Distance<\/th>\n\u223c70\u00a0000\u00a0000\u00a0a.l.<\/a><\/span> (\u223c21\u00a0500\u00a0000\u00a0pc<\/a><\/span>)<\/td>\n<\/tr>\n
Caract\u00e9ristiques physiques<\/th>\n<\/tr>\n
D\u00e9couverte<\/th>\n<\/tr>\n
D\u00e9signation(s)<\/th>\nNGC 4374<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

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