{"id":6510,"date":"2017-07-30T12:25:55","date_gmt":"2017-07-30T11:25:55","guid":{"rendered":"http:\/\/outters.fr\/?p=6510"},"modified":"2025-07-15T17:04:09","modified_gmt":"2025-07-15T16:04:09","slug":"ic2944-hargb","status":"publish","type":"post","link":"https:\/\/www.outters.fr\/?p=6510","title":{"rendered":"IC2944-HaRGB (Ciel Austral)"},"content":{"rendered":"

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IC2944 en HaRGB par ciel Austral
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\"IC2944<\/a><\/span><\/div>
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Image Ha-RGB<\/h2><\/a><\/div><\/div><\/div>
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Image Ha<\/h2><\/a><\/div><\/div><\/div>
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Image RGB<\/h2><\/a><\/div><\/div><\/div>
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Donn\u00e9es techniques
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Donn\u00e9es scientifiques<\/h2><\/div>
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\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Observation data: J2000.0 epoch<\/a><\/th>\n<\/tr>\n
Right ascension<\/a><\/th>\n11h<\/sup>\u00a036m<\/sup>\u00a036.0s<\/sup><\/td>\n<\/tr>\n
Declination<\/a><\/th>\n\u221263\u00b0\u00a002\u2032\u00a000\u2033<\/td>\n<\/tr>\n
Distance<\/th>\n2.0 kpc<\/a>[1]<\/a><\/sup>\u00a0ly<\/a><\/td>\n<\/tr>\n
Apparent magnitude<\/a> (V)<\/small><\/th>\n4.5<\/td>\n<\/tr>\n
Apparent dimensions (V)<\/small><\/th>\n75′<\/td>\n<\/tr>\n
Constellation<\/a><\/th>\nCentaurus<\/td>\n<\/tr>\n
Physical characteristics<\/th>\n<\/tr>\n
Radius<\/a><\/th>\n60\u00a0ly<\/td>\n<\/tr>\n
<\/th>\n<\/tr>\n
Notable features<\/th>\nopen cluster with nebulosity, Bok globules<\/a><\/td>\n<\/tr>\n
Designations<\/th>\nIC 2944,
\nRunning Chicken Nebula,
\nLambda Cen Nebula, Caldwell 100.Reipurth_08-202<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div><\/div><\/div>

Donn\u00e9es de prises de vues<\/h2><\/div>
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Conditions d’acquisitions<\/strong><\/em><\/h3>\n

La p\u00e9riode d’acquisition a \u00e9t\u00e9 mouvement\u00e9e avec une temp\u00eate et 200mm de pluie en 48h puis de la neige. Il aura fallu 3 mois pour avoir assez de poses pour d\u00e9cider de traiter l’image.<\/p>\n

Les images Ha\/SII et OIII sont exemptes de bruit, le traitement est assez bizarre car on peut tout \u00e0 loisir traiter celle ci sans\u00a0 faire monter le bruit. L’\u00e9quipe Ciel Austral travaille de paire et chacun propose des versions, nous d\u00e9cidons ensuite de prendre telle ou telle version puis de fusionner les versions.<\/p>\n

Plus d’infos sur le groupe \u00ab\u00a0Ciel Austral\u00a0\u00bb<\/a><\/p>\n

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\"\"Commentaires sur l’objet photographi\u00e9<\/span><\/p><\/h1><\/span>

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Voici la deuxi\u00e8me image du Chili, ic2944 a \u00e9t\u00e9 d\u00e9couverte au d\u00e9but du si\u00e8cle dernier par Royal H. Frost avec un t\u00e9lescope de 24 \u00a0\u00bb \u00e0 l’observatoire Harvard College Observatory\u2019s station in Arequipa.<\/p>\n

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Les globules de Thackeray <\/span>ont \u00e9t\u00e9 d\u00e9couverts en 1956. Il n’y a toujours pas de preuves \u00e9vidents que ces globules soient des \u00e9toiles en formation.<\/p>\n

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Un peu d’histoire :<\/p>\n

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En haut de l’image \u00e0 gauche vous pouvez apercevoir une magnifique n\u00e9buleuse plan\u00e9taire d\u00e9couverte en 1964 par Karl Gordon Henize.<\/p>\n

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En cherchant sur le net quelques informations sur cette personne, je me suis aper\u00e7u que cet homme a \u00e9t\u00e9 un astronaute puis un astronome. Il est d\u00e9c\u00e9d\u00e9 en 1993 lors d’une op\u00e9ration organis\u00e9e par la Nasa sur le mont Everest.<\/p>\n

https:\/\/en.wikipedia.org\/wiki\/Karl_Gordon_Henize<\/a><\/p>\n<\/div><\/div><\/div>

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