{"id":8548,"date":"2020-01-23T00:17:12","date_gmt":"2020-01-22T23:17:12","guid":{"rendered":"http:\/\/outters.fr\/?p=8548"},"modified":"2025-07-15T17:04:06","modified_gmt":"2025-07-15T16:04:06","slug":"m34-et-pn-a66-4-en-rgb","status":"publish","type":"post","link":"https:\/\/www.outters.fr\/?p=8548","title":{"rendered":"M34 et PN A66 4 en rgb"},"content":{"rendered":"

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M34 et PN A66 4 en rgb
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Donn\u00e9es techniques de prise de vue<\/h2><\/div>
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Objects : M34 et PN A66 4
\nCommon name :
\nDate : du 30 decembre 2019 au 23 janvier 2020
\nOptics : Newton SV400 F4
\nMount : Paramount ME Num\u00e9ro 2
\nLocation : Orange observatory
\nSeeing FWHM :2.06 \u00e0 4.29
\nCcd : FLI Proline
\nfilter wheel : FLI
\nfilters : Astrodon RVB
\nFocuser :Atlas
\nGuiding : Atik 414L+
\nTemp. out : T\u00b0 de \u00b0
\nTemp ccd : -35\u00b0
\nResolution …………… 1.153 arcsec\/px
\nRotation …………….. 177.601 deg
\nFocal distance ……….. 1609.66 mm
\nPixel size …………… 9.00 um
\nField of view ………… 1d 17′ 36.9″ x 1d 17′ 27.7″
\nImage center …………. RA: 2 42 04.733 Dec: +42 45 32.77
\nTotal exposure\u00a0 11 h
\ntout en binning 1×1
\n44R 44V 44B x 5mn<\/div><\/div><\/div>
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Image RGB<\/h2><\/a><\/div><\/div><\/div>
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Image RGB annotate<\/h2><\/a><\/div><\/div><\/div>
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Commentaires sur l’objet photographi\u00e9<\/span><\/p><\/h1><\/span>

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Durant 3 \u00e0 4 semaine j’ai point\u00e9 mon t\u00e9lescope sur Simeis 147 vers 23h, entre le d\u00e9but de la nuit et mon objet principal j’ai choisi de pointer le Newton sur M34.<\/p>\n

En haut \u00e0 droite vous pouvez apercevoir une jolie n\u00e9buleuse plan\u00e9taire Abell 4 ou PN A66 4<\/p>\n

Voici une vue annotate de l’image, remarquez les nombreuses galaxies environnantes.<\/p>\n

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Vue annotate de l’image.<\/p><\/div>\n

\"outters-nicolas\"<\/p>\n<\/div>

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Donn\u00e9es techniques
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Source Wikipedia<\/p>\n

L’objet num\u00e9ro 34 du catalogue Messier est un amas ouvert (nomm\u00e9 M34 ou NGC 1039), situ\u00e9 dans la constellation de Pers\u00e9e. Il a \u00e9t\u00e9 d\u00e9couvert par l’astronome italien Giovanni Battista Hodierna, la date r\u00e9elle de cette d\u00e9couverte n’\u00e9tant pas connue avec pr\u00e9cision, la seule chose dont on soit certain \u00e9tant qu’il l’a observ\u00e9 avant 1654, puisque l’amas figurait dans le catalogue qu’il a publi\u00e9 \u00e0 cette date. L’amas a \u00e9t\u00e9 observ\u00e9 le 25 aout 1764 par Charles Messier qui l’a ajout\u00e9 \u00e0 son catalogue comme M345.<\/p>\n

M34 est situ\u00e9 approximativement \u00e0 environ 499 pc (\u223c1 630 a.l.) du syst\u00e8me solaire, et les derni\u00e8res estimations donnent un \u00e2ge de 177 millions d’ann\u00e9es. Il contient une centaine d’\u00e9toiles, la plus brillante ayant une magnitude apparente de +7,9.<\/p>\n

Le diam\u00e8tre apparent de l’amas est de 25 minutes d’arc, ce qui, compte tenu de la distance, donne un diam\u00e8tre r\u00e9el de 12 ann\u00e9es-lumi\u00e8re environ.<\/p>\n

Selon la classification des amas ouverts de Robert Trumpler, M34 renferme entre 50 et 100 \u00e9toiles (lettre m) dont la concentration est moyenne (II) et dont les magnitudes se r\u00e9partissent sur un grand intervalle (le chiffre 3).<\/p>\n<\/div><\/div><\/div>

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