{"id":10521,"date":"2023-12-18T16:08:42","date_gmt":"2023-12-18T15:08:42","guid":{"rendered":"http:\/\/outters.fr\/?p=10521"},"modified":"2025-07-15T17:04:01","modified_gmt":"2025-07-15T16:04:01","slug":"ngc1528-en-rgb","status":"publish","type":"post","link":"https:\/\/www.outters.fr\/?p=10521","title":{"rendered":"NGC1528 en rgb"},"content":{"rendered":"

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NGC1528 et Sharpless 209 et K3-64
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Commentaires sur l’objet photographi\u00e9<\/span><\/p><\/h1><\/span>

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L’objectif initial \u00e9tait de prendre le doubl\u00e9 Sharpless 209 et l’amas NGC1528 mais est venu se glisser dans l’image une petite n\u00e9buleuse plan\u00e9taire appel\u00e9e K3-64 et visible depuis ce lien : https:\/\/faculty.washington.edu\/balick\/PNIC\/PNimages_by_galcoord\/151.4+00.5.K3-64.jpg<\/a><\/p>\n

L’image ici n’est qu’une simple RGB par manque de temps et de m\u00e9t\u00e9o mauvaise le reste de l’hiver !<\/p>\n<\/div>

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Lien image RGB<\/h2><\/a><\/div><\/div><\/div>
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Image RGB annotate<\/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 :NGC1528 et Sharpless 209 et K3-64
\nDate : images du 17 et 18 decembre 2023
\nOptics :SV400 Newton F3,8
\nMount : Paramount ME Num\u00e9ro 1
\nLocation : Orange observatory
\nSeeing : FWHM de arc sec(Maxselector)
\nCcd : Moravian G4 16803
\nfilter wheel :Moravian
\nfilters : Astrodon LRVB
\nFocuser :FLI Atlas
\nGuiding : SkyMeca DO et Atik 314L+
\nTemp. out : 8 \u00b0\u00e0 9.8\u00b0
\nTemp ccd : -25\u00b0
\nTotal exposure : 5 h
\nR 12 x 5 mn bining 1\u00d71
\nV 24 x 5 mn bining 1\u00d71
\nB 24 x 5 mn bining 1\u00d71<\/p>\n<\/div><\/div><\/div>

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Donn\u00e9es scientifiques<\/h2><\/div>
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Source Wikipedia<\/p>\n

NGC 1528<\/b>\u00a0est un\u00a0amas ouvert<\/a>\u00a0situ\u00e9 dans la\u00a0constellation<\/a>\u00a0de\u00a0Pers\u00e9e<\/a>. Il a \u00e9t\u00e9 d\u00e9couvert par l’astronome\u00a0germano<\/a>–britannique<\/a>\u00a0William Herschel<\/a>\u00a0en 1790.<\/p>\n

NGC 1528 est situ\u00e9 \u00e0 environ\u00a0776\u00a0pc<\/a><\/abbr>\u00a0(\u223c2\u00a0530\u00a0al<\/a><\/abbr>) du\u00a0syst\u00e8me solaire<\/a>\u00a0et les derni\u00e8res estimations donnent un \u00e2ge de 370 millions d’ann\u00e9es. Le diam\u00e8tre apparent de l’amas est de 18,0\u00a0minutes d’arc<\/a>, ce qui, compte tenu de la distance, donne un diam\u00e8tre r\u00e9el d’environ 13,3 ann\u00e9es-lumi\u00e8re.<\/p>\n

Selon la\u00a0classification des amas ouverts<\/a>\u00a0de\u00a0Robert Trumpler<\/a>, cet amas renferme entre 50 et 100 \u00e9toiles (lettre m) dont la concentration est moyenne (II) et dont les magnitudes se r\u00e9partissent sur un intervalle moyen (le chiffre 2).<\/p>\n

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Sharpless 209 est une n\u00e9buleuse d’\u00e9mission situ\u00e9e \u00e0 environ 29 000 ann\u00e9es-lumi\u00e8re dans la constellation de Pers\u00e9e.<\/p>\n<\/div>\n<\/div><\/div><\/div>

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