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#1
January 8th 05, 11:59 AM
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Tail disconnection event in the Pleiades?
Looking at Andjelko Glivar's wonderful Machholz/Pleiades image on
SpaceWeather.com today (2005-01-08) it looks as if Machholz passed the cluster in style with a tail disconnection event! Makes looking at the underside of clouds until 2am really quite annoying :-( -- Pete http://www.digitalsky.org.uk Global Projects - http://www.globalobservers.net 
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#2
January 8th 05, 12:04 PM
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No, no, no, it is never cloudy in Selsey. You must have gone out somewhere?
http://www.astrostudio.at/Astrofotos...gorie=&k_id=39 Now this is a picture!! Cheers Paul "Pete Lawrence" wrote in message ... Looking at Andjelko Glivar's wonderful Machholz/Pleiades image on SpaceWeather.com today (2005-01-08) it looks as if Machholz passed the cluster in style with a tail disconnection event! Makes looking at the underside of clouds until 2am really quite annoying :-( -- Pete http://www.digitalsky.org.uk Global Projects - http://www.globalobservers.net
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#3
January 8th 05, 12:33 PM
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The comet head shows a remarkable level of transparency to small
background stars in this image. My own brief view through the 6" (before yet more cloud) showed a single star within the "nuclear fuzz' and much firmer (almost-starlike) central brightening of the nucleus at 45x and 80x. Not at all like this fine image where the head looks almost uniform in density. * Regards Chris.B
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#4
January 8th 05, 01:32 PM
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On Sat, 8 Jan 2005 12:04:51 -0000, "Paul Clark"
wrote: No, no, no, it is never cloudy in Selsey. You must have gone out somewhere? http://www.astrostudio.at/Astrofotos...gorie=&k_id=39 Now this is a picture!! An absolute stunner isn't it! -- Pete http://www.digitalsky.org.uk Global Projects - http://www.globalobservers.net
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#5
January 8th 05, 03:18 PM
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"Paul Clark" wrote in message . .. No, no, no, it is never cloudy in Selsey. You must have gone out somewhere? http://www.astrostudio.at/Astrofotos...e=1&kategorie= &k_id=39 Hi, One more time the job of Gerald Rhemann is wonderful ! Could someone get a similar color shot ? I am looking to Pete for example... ;-) Good luck. Thierry http://www.astrosurf.com/lombry/imag...landscapes.htm Now this is a picture!! Cheers Paul "Pete Lawrence" wrote in message ... Looking at Andjelko Glivar's wonderful Machholz/Pleiades image on SpaceWeather.com today (2005-01-08) it looks as if Machholz passed the cluster in style with a tail disconnection event! Makes looking at the underside of clouds until 2am really quite annoying :-( -- Pete http://www.digitalsky.org.uk Global Projects - http://www.globalobservers.net
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#6
January 8th 05, 04:51 PM
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One more time the job of Gerald Rhemann is wonderful !
Could someone get a similar color shot ?=20 Color image here... http://www.astrostudio.at/Astrofotos...&page=3D1&kat= egorie=3D&k_id=3D39 -Florian
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#7
January 8th 05, 05:51 PM
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On Sat, 08 Jan 2005 16:51:17 GMT, "Florian"
wrote: One more time the job of Gerald Rhemann is wonderful ! Could someone get a similar color shot ? Color image here... http://www.astrostudio.at/Astrofotos...gorie=&k_id=39 -Florian Zoom in on this color image and note the numerous concentric shells (rings) of expended material off from the nucleus into the coma !!! Pete
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#8
January 8th 05, 06:27 PM
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On Sat, 08 Jan 2005 11:51:20 -0600, Pete Rasmussen
wrote: Zoom in on this color image and note the numerous concentric shells (rings) of expended material off from the nucleus into the coma !!! Is that real or a processing/conversion artifact? --- Michael McCulloch
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#9
January 8th 05, 06:40 PM
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On Sat, 08 Jan 2005 11:51:20 -0600, Pete Rasmussen
wrote: Zoom in on this color image and note the numerous concentric shells (rings) of expended material off from the nucleus into the coma !!! Look like JPEG artifacts to me, or stepped gradient artifacts that can show up when converting to 8-bit data. I've never heard of comets outgassing shells of materials- just jets and other asymmetric components. _________________________________________________ Chris L Peterson Cloudbait Observatory http://www.cloudbait.com
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#10
January 8th 05, 07:37 PM
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On Sat, 08 Jan 2005 16:51:17 GMT, "Florian"
wrote: Color image here... http://www.astrostudio.at/Astrofotos...gorie=&k_id=39 Very Nice! That image is very much like the visual impression one gets with large binoculars from a dark sky -- except visually there's far less color and one needs to use averted vision to see the rather faint tails. Sketcher To sketch is to see.
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