Re: subtle background structure in deep astronomy photos; CSL-1 cosmic

Neil

<jabberwocky><div class="vbmenu_control"><a href="jabberwocky:;" onClick="newWindow=window.open('','usenetCode','toolbar=no,location=no, scrollbars=yes,resizable=yes,status=no,width=650,height=400'); newWindow.document.write('<HTML><HEAD><TITLE>Usenet ASCII</TITLE></HEAD><BODY topmargin=0 leftmargin=0 BGCOLOR=#F1F1F1><table border=0 width=625><td bgcolor=midnightblue><font color=#F1F1F1>This Usenet message\'s original ASCII form: </font></td></tr><tr><td width=449><br><br><font face=courier><UL><PRE>\n"Rich Murray" <rmforall@att.net> wrote in message\nnews:11alukl4m7sdk48@news.supernews.com...\n> http://groups.yahoo.com/group/AstroDeep/11 subtle background\n> structure in deep astronomy photos; CSL-1 cosmic string\n> gravitational lens in Capodimonte Deep Field; Millennium Simulation\n> of evolving cosmic structure; AstroDeep group; Murray mesh;\n> www.Flickr.com\n>\n> Rich Murray, MA Room For All rmforall@comcast.net 505-501-2298\n> 1943 Otowi Road Santa Fe, New Mexico 87505 USA\n>\n> http://groups.yahoo.com/group/AstroDeep/ AstroDeep@yahoogroups.com\n> This group was started 2002.01.19, and allows sharing and\n> discussion of 100KB jpg photos. A new AstroDeep group is available\n> on Flickr.com to share png photos, up to 5 to 10 MB size, with many\n> sizes viewable of each photo.\n>\n> http://www.flickr.com/groups/97329064@N00/\n>\n> About AstroDeep:\n>\n> Share and discuss ultra deep sky astronomy photos, up to 5 MB each,\n> that show mysterious, fascinating, and unexplained subtle\n> background structure: appears to be a very distant 3D fractile\n> tangle of dark and light spots, threads, and lines, behind all\n> galaxies, which I named \'Murray mesh\' in January 2002.\n>\n> I\'d like a self-organizing community of people to evolve to enjoy\n> and study this wonder in the spirit of free, civil, open-minded\n> scientific sharing, serious, playful, and aesthetic, and including\n> professionals as well as amateurs. Skeptical assessments are\n> welcome, in case the subtle features are artifacts of\n> instrumentation, processing, or perception.\n>\n<snip>\n> For your photos page: http://www.flickr.com/photos/rmforall/\n>\n> For your profile: http://www.flickr.com/people/rmforall/\n> **************************************************************\n>\n\ nI don\'t know to what extent you or others did your own processing, but\nhere\'s a "processing" tip: you would be amazed at how much quality faint\ndetail you can pull in from black backgrounds by adjusting the screen\nbrightness and contrast off Windows. It depends on your setup, but you can\nusually pull that gain grip up and just brighten up that dark background and\nshow all kinds of faint objects (in effect, turning a 0, 3 brightness step\ninto about a 3, 20 or so that you can see.) It looks as good as what you\nwould take longer to get right in PhotoShop type programs. But don\'t leave\nit like that, it\'s not good for the monitor.\n\nNeil Bates\n\n\n</UL></PRE></font></td></tr></table></BODY><HTML>');"> <IMG SRC=/images/buttons/ip.gif BORDER=0 ALIGN=CENTER ALT="View this Usenet post in original ASCII form">  View this Usenet post in original ASCII form </a></div><P></jabberwocky>"Rich Murray" <rmforall@att.net> wrote in message
news:11alukl4m7sdk48@news.supernews.com...
> http://groups.yahoo.com/group/AstroDeep/11 subtle background
> structure in deep astronomy photos; [itex]CSL-1[/itex] cosmic string
> gravitational lens in Capodimonte Deep Field; Millennium Simulation
> of evolving cosmic structure; AstroDeep group; Murray mesh;
> www.Flickr.com
>
> Rich Murray, MA Room For All rmforall@comcast.net [itex]505-501-2298[/itex]
> 1943 Otowi Road Santa Fe, New Mexico 87505 USA
>
> http://groups.yahoo.com/group/AstroDeep/ AstroDeep@yahoogroups.com
> This group was started 2002.01.19, and allows sharing and
> discussion of 100KB jpg photos. A new AstroDeep group is available
> on Flickr.com to share png photos, up to 5 to 10 MB size, with many
> sizes viewable of each photo.
>
> http://www.flickr.com/groups/97329064@N00/
>
> About AstroDeep:
>
> Share and discuss ultra deep sky astronomy photos, up to 5 MB each,
> that show mysterious, fascinating, and unexplained subtle
> background structure: appears to be a very distant 3D fractile
> tangle of dark and light spots, threads, and lines, behind all
> galaxies, which I named 'Murray mesh' in January 2002.
>
> I'd like a self-organizing community of people to evolve to enjoy
> and study this wonder in the spirit of free, civil, open-minded
> scientific sharing, serious, playful, and aesthetic, and including
> professionals as well as amateurs. Skeptical assessments are
> welcome, in case the subtle features are artifacts of
> instrumentation, processing, or perception.
>
<snip>
> For your photos page: http://www.flickr.com/photos/rmforall/
>
> For your profile: http://www.flickr.com/people/rmforall/
> [itex]**************************************************************[/itex]
>

I don't know to what extent you or others did your own processing, but
here's a "processing" tip: you would be amazed at how much quality faint
detail you can pull in from black backgrounds by adjusting the screen
brightness and contrast off Windows. It depends on your setup, but you can
usually pull that gain grip up and just brighten up that dark background and
show all kinds of faint objects (in effect, turning a 0, 3 brightness step
into about a 3, 20 or so that you can see.) It looks as good as what you
would take longer to get right in PhotoShop type programs. But don't leave
it like that, it's not good for the monitor.

Neil Bates

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