{"id":8979,"date":"2020-09-03T17:18:45","date_gmt":"2020-09-03T16:18:45","guid":{"rendered":"http:\/\/outters.fr\/?p=8979"},"modified":"2025-07-15T17:04:05","modified_gmt":"2025-07-15T16:04:05","slug":"snr-g078-302-5-en-hargb","status":"publish","type":"post","link":"https:\/\/www.outters.fr\/?p=8979","title":{"rendered":"SNR G078.3+02.5 en HaRGB"},"content":{"rendered":"

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SNR G078.3+02.5 en HaRGB<\/span><\/p><\/h2><\/span>

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Image Hargb<\/h2><\/a><\/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

Vous pouvez appercevoir un reflet dans l’image ou pensez croire \u00e0 quelques traces de satellites, il n’en est rien ! l’\u00e9toile Sadr est \u00e0 proximit\u00e9 du champs d’o\u00f9 l’explication.<\/p>\n

ATTENTION : le titre de l’image est trompeur, il s’agirait en r\u00e9alit\u00e9 de LDN888 que vous voyez mais j’ai inclut ce titre plus exotique car l’objet est r\u00e9ellement dans l’image mais difficile \u00e0 voir.<\/p>\n

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Cliquez sur l’image pour la voir en grand<\/p><\/div>\n

SNR G078.3+02.5 et G78.2+2.1 sont deux r\u00e9manents de supernovae visibles dans l’image. Voici les commentaires issus du catalogue de David GREEN pour G78.2+2.1 : \u00a0\u00bb<\/p>\n

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  • Right Ascension: 20 20 50<\/li>\n
  • Declination: +40 26<\/li>\n
  • Size (\/arcmin): 60<\/li>\n
  • Type: S<\/li>\n
  • Flux density at 1 GHz (\/Jy): 320<\/li>\n
  • Spectral Index: 0.51<\/li>\n<\/ul>\n

    Notes:<\/i>\u00a0Has been called G78.1+1.8.<\/p>\n

    \n
    Radio:<\/b>\u00a0In complex region (early catalogues refer to other proposed remnants in this region).<\/dt>\n
    Optical:<\/b>\u00a0Faint filaments, spectra indicate a SNR superposed on a HII<\/span>\u00a0region.<\/dt>\n
    X-ray:<\/b>\u00a0Weak emission from the SE of the remnant.<\/dt>\n
    Point sources:<\/b>\u00a0X-ray pulsar at edge of remnant, with nebula.<\/dt>\n
    Distance:<\/b>\u00a0Associations with other objects suggests 1.7 to 2.6\u00a0kpc.<\/dt>\n<\/dl>\n

    SNR G078.3+02.5\u00a0<\/b>est r\u00e9f\u00e9renc\u00e9 par Aladin via Simbad et j’ai trouv\u00e9 que 3 r\u00e9f\u00e9rences qui font r\u00e9f\u00e9rence au SNR, voici le plus pertinent :<\/p>\n

    \u00ab\u00a0G78’9+3’7 0’032 0’015 0’09 334\u00b1S7 1\u00b15 G DR 1 Probably Hn region\u00a0\u00bb<\/p>\n<\/div><\/div><\/div>

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    Donn\u00e9es techniques
    \n<\/span><\/p><\/h2><\/span>

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    Donn\u00e9es techniques de prise de vue<\/h2><\/div>
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    Object : DWB65 et 64, G78.2+2.1, SNR G078.3+02.5
    \nCommon name :
    \nDate images Du 7 ao\u00fbt au 3 septembre 2020
    \nOptics : Rcos 12.5″
    \nMount : Paramount ME Num\u00e9ro 3
    \nLocation : Sirene observatory
    \nSeeing : fwhm : 1.63 \u00e0 3.4
    \nCcd : Apogee 16U
    \nfilter wheel : Apogee
    \nfilters : Astrodon Hargb
    \nFocuser :TIM
    \nGuiding : Atik 314L+
    \nTemp. out : T\u00b0 10 \u00e0 +17.5\u00b0
    \nTemp ccd : -25\u00b0
    \nResolution …………… 0.647 arcsec\/px
    \nRotation …………….. 93.364 deg (flipped)
    \nObservation start time … 2020-08-08 00:04:10 UTC
    \nObservation end time ….. 2020-08-08 00:24:10 UTC
    \nGeodetic coordinates ….. 5 29 13 W 44 00 00 N 1100 m
    \nFocal distance ……….. 2870.25 mm
    \nPixel size …………… 9.00 um
    \nField of view ………… 44′ 9.2″ x 44′ 9.2″
    \nImage center …………. RA: 20 19 21.259 Dec: +40 45 22.65
    \nTotal exposure : 32 h
    \ntout en binning 1×1
    \nRouge 13 x 15′ \/ vert 11 x 15′ \/ bleu 11 x 15′
    \nHa : 39 x 20′
    \nL : 31 x 20′<\/div><\/div><\/div>
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    Donn\u00e9es scientifiques<\/h2><\/div>
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    Source wikipedia<\/p>\n<\/div><\/div><\/div>

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