{"id":5461,"date":"2016-12-25T18:49:51","date_gmt":"2016-12-25T17:49:51","guid":{"rendered":"http:\/\/outters.fr\/?p=5461"},"modified":"2025-07-15T17:04:10","modified_gmt":"2025-07-15T16:04:10","slug":"ldu14-et-sh2-200-hoo-rvb","status":"publish","type":"post","link":"https:\/\/www.outters.fr\/?p=5461","title":{"rendered":"LDu14 et Sh2-200 HOO-rvb"},"content":{"rendered":"

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LDu14 et Sh2-200
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\"LDu14<\/a><\/span><\/div><\/div><\/div>
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Image HOO-rvb<\/h2><\/a><\/div><\/div><\/div>
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Image Ha<\/h2><\/a><\/div><\/div><\/div>
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Image OIII<\/h2><\/a><\/div><\/div><\/div>
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Image RVB<\/h2><\/div><\/div><\/div>
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Commentaires sur l’objet photographi\u00e9<\/span><\/p><\/h1><\/span>

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

Une belle d\u00e9couverte de Pascal Ledu d’apr\u00e8s une id\u00e9e de Sakib Rasool.<\/p>\n

Plus d’infos sur la d\u00e9couverte de Pascal : http:\/\/www.cielocean.fr\/index.php?page=LDu-14<\/a><\/p>\n

\u00a0<\/span><\/p>\n<\/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 : Ldu 14
\nCommon name :
\nDate images du 6 sept au 29 octobre 2016
\nOptics : Newton SV400 F3,8
\nMount : Paramount ME Num\u00e9ro 1
\nLocation : Orange observatory
\nSeeing : FWhm de
\nCcd : Moravian G4
\nfilter wheel : Moravian
\nfilters : Astrodon
\nSII Ha OIII
\nFocuser :Atlas
\nGuiding : Atik 314L+
\nTemp. out : T\u00b0 de +10 \u00e0 +23
\nTemp ccd : -25\u00b0
\nTotal exposure : 33.9 h
\ntout en binning 1×1
\nHa 88 x 10′
\nOIII : 106 x 10′<\/p>\n

RVB : 32 x 1mn par couche<\/div><\/div><\/div>

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Donn\u00e9es scientifiques<\/h2><\/div>
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This planetary nebula offers a lot to large telescopes and smaller ones with a wider field of view. The nebula responds mostly to the hydrogen-alpha filter and is weak with the standard color RGB filters. So I had to blend the H-Alpha data into the red and blue channels to create a nice HA-RGB image. Interestingly there is a larger outer halo around the brighter part of the nebula but it is very faint and needs the exposure time to capture it. The oxygen III filter picks up very well but the sulfur II is very weak. That said, a good narrowband image can be done. The narrowband image was taken with the Sagrada remote observatory.<\/span><\/p>\n

Source : http:\/\/www.sharplesscatalog.com\/sharpless\/SH2-200.aspx<\/div><\/div><\/div>

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