{"id":8333,"date":"2007-01-13T16:34:46","date_gmt":"2007-01-13T16:34:46","guid":{"rendered":"https:\/\/groupeastronomiespa.be\/astrogas\/mc-naught-de-jour\/"},"modified":"2025-06-08T22:49:37","modified_gmt":"2025-06-08T20:49:37","slug":"mc-naught-de-jour","status":"publish","type":"post","link":"https:\/\/groupeastronomiespa.be\/astrogas\/mc-naught-de-jour\/","title":{"rendered":"Mc Naught de jour!"},"content":{"rendered":"

WARNING – Comet now less than 6\u00b0 from the Sun. Do not attempt to look with the naked eye or binoculars unless the Sun is hidden e.g. by a building. Observation with SCT telescopes is risky since sunrays may hit the primary mirror and concentrate besides the secondary mirror, therefore over-heating its mount. Do not point at the comet for long periods; use a long baffle in front of the telescope.<\/p>\n

Some clearings came over Munich, allowing visual observations of McNaught: C11, x110, orange filter \/ no filter: pseudo-nucleus surface brightness at least as large as Venus; hints of an antisolar shell, better visible during \u00ab\u00a0eclipses\u00a0\u00bb = Sun behind clouds but comet in blue sky.
\nMany images taken with D100 and C11, Contrast Booster & no filter, f\/11 & f\/22. Here a composite of 3 images, no filter, f\/11, 1\/2000s, ISO 200, 10:45 UTC, cropped to FOV = 13′.
\nSome videos taken before clouds arrived. Now, clearings are coming again, thus I’ll go to EPO room 7917 within 1 hour.<\/p>\n

jld <\/p>\n

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

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

WARNING – Comet now less than 6\u00b0 from the Sun. Do not attempt to look with the naked eye or binoculars unless the Sun is hidden e.g. by a building. Observation with SCT telescopes is risky since sunrays may hit the primary mirror and concentrate besides the secondary mirror, therefore over-heating its mount. Do not […]<\/p>\n","protected":false},"author":12,"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-8333","post","type-post","status-publish","format-standard","hentry","category-astrophotos"],"_links":{"self":[{"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/posts\/8333","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\/12"}],"replies":[{"embeddable":true,"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/comments?post=8333"}],"version-history":[{"count":1,"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/posts\/8333\/revisions"}],"predecessor-version":[{"id":13350,"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/posts\/8333\/revisions\/13350"}],"wp:attachment":[{"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/media?parent=8333"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/categories?post=8333"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/tags?post=8333"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}