{"id":8691,"date":"2008-06-29T21:08:14","date_gmt":"2008-06-29T21:08:14","guid":{"rendered":"https:\/\/groupeastronomiespa.be\/astrogas\/m94\/"},"modified":"2025-06-08T22:48:37","modified_gmt":"2025-06-08T20:48:37","slug":"m94","status":"publish","type":"post","link":"https:\/\/groupeastronomiespa.be\/astrogas\/m94\/","title":{"rendered":"M94"},"content":{"rendered":"

Hors d’une s\u00e9rie de tests d’auto-guidage avec Maxim.
\nJ’ai progressivement augment\u00e9 le temps de pose, de 30 s \u00e0 300s.
\nMaxim s’est montr\u00e9 efficace du premier coup. En esp\u00e9rant que ce n’est pas de la chance…<\/p>\n

\"\"<\/a><\/p>\n

Concernant l’objet en soi, il n’est pas aussi facile \u00e0 traiter qu’imagin\u00e9. J’ai du combiner toutes les images – temps de pose diff\u00e9rents – pour r\u00e9cup\u00e9rer du signal.<\/p>\n

M94 pour r\u00e9f\u00e9rence: http:\/\/www.astrosurf.com\/dumont\/m94md.html<\/a><\/p>\n

J’ai l’impression de pouvoir discerner le large halo autour de la Galaxie sur ma photo, malgr\u00e9 le fait que l’analyse des niveaux ne le laisse pas ressortir:
\n\"\"<\/a><\/p>\n

R\u00e9f\u00e9rence: http:\/\/www.daviddarling.info\/encyclopedia\/M\/M94.html<\/a><\/p>\n

General\tDate:\t10-May-08
\nObject\tObject:\tM94(NGC4736)
\nObject\tType:\tGalaxy
\nObject\tMagnitude:\t8.2
\nObject\tSize [ArcMin]:\t12.3×10.8
\nMount & Optic(s)\tMount Maker\/Type:\tVixen\/Sphinx
\nMount & Optic(s)\tOTA Maker\/Type:\tTelevue\/NP101
\nMount & Optic(s)\tF(mm)\/D(mm):\t540\/101=5.4
\nMount & Optic(s)\tFilter:\tIDAS LPS
\nCCD\tMaker\/Type:\tCanon\/EOS40D
\nCCD\tShip size [mm]:\t22.2×14.8
\nCCD\tPixel array:\t3888×2592
\nCCD\tPixel size [\u00b5m]:\t5.7×5.7
\nCCD\tFOV [ArcMin]:\t93×140
\nCCD\tFOV [ArcSec\/Pixel]:\t2.15
\nGuider – Optic\tOTA Maker\/Type:\tTakahashi\/FS-60C
\nGuider – Optic\tF(mm)\/D(mm):\t355\/60=5.9
\nGuider – CCD\tMaker\/Type:\tOrion\/StarShootDSCI
\nGuider – CCD\tShip size [mm]:\t4.89×3.64
\nGuider – CCD\tPixel array:\t752×582
\nGuider – CCD\tPixel size [\u00b5m]:\t6.5×6.25
\nGuider – CCD\tFOV [ArcMin]:\t37×47
\nGuider – CCD\tFOV [ArcSec\/Pixel]:\t3.78
\nCapture technique\tAuto-guiding:\tYes; By Maxim DL
\nCapture technique\tExp Qty:\t>
\n29 x 30s
\n14 x 120s
\n10 x 200s
\n8 x 300s<\/p>\n

Capture technique\tDark Qty:\t#
\nCapture technique\tFlat Qty:\t18+9fd
\nSetting\tSensitivity\/ASA:\t800<\/p>\n

Calibrate
\n > Flat
\n > Flat Dark
\n > Bias
\n > Dark
\nColor Conversion<\/p>\n

Combine: Average & Sum
\nBackground & Color balance
\nDeconvolution
\nCrop
\nGradient
\nCurve
\nUnsharp<\/p>\n\n\n

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\n Veuillez voter<\/span>\n <\/div>\n <\/div>\n","protected":false},"excerpt":{"rendered":"

Hors d’une s\u00e9rie de tests d’auto-guidage avec Maxim. J’ai progressivement augment\u00e9 le temps de pose, de 30 s \u00e0 300s. Maxim s’est montr\u00e9 efficace du premier coup. En esp\u00e9rant que ce n’est pas de la chance… Concernant l’objet en soi, il n’est pas aussi facile \u00e0 traiter qu’imagin\u00e9. J’ai du combiner toutes les images – […]<\/p>\n","protected":false},"author":16,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[2],"tags":[],"class_list":["post-8691","post","type-post","status-publish","format-standard","hentry","category-astrophotos"],"_links":{"self":[{"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/posts\/8691","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/users\/16"}],"replies":[{"embeddable":true,"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/comments?post=8691"}],"version-history":[{"count":1,"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/posts\/8691\/revisions"}],"predecessor-version":[{"id":12989,"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/posts\/8691\/revisions\/12989"}],"wp:attachment":[{"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/media?parent=8691"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/categories?post=8691"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/tags?post=8691"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}