Re: [Celestia-developers] Milky Way template reversed?
Real-time 3D visualization of space
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From: Fridger S. <fri...@de...> - 2006-11-18 13:16:51
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Selden, yes I am aware of this and the respective literature, of course. The fix of the MW orientation is part of my forthcoming commit to CVS. Bye Fridger Selden E Ball Jr wrote: > This was reported by "ebracum45" in the Forum posting at > http://www.shatters.net/forum/viewtopic.php?t=10310& > but that posting may have been overlooked. > > It seems that the template for the Milky Way image may have > gotten reversed. > > Looking down from Galactic North in Celestia, so that the SMC and LMC > are more distant from the viewpoint than the Milky Way, > the image in Celestia shows the arms farther apart > as galactic longitude decreases. That is, they open clockwise. > > However, the standard plots of the Milky Way arm structure show the arm > > separation increasing with increasing longitude: the arms open > > counter-clockwise. > > See, for example, the plot at > http://cfa-www.harvard.edu/~reid/background.html > which is taken from Georgelin and Georgelin (1976). > > A more recent study (including color plots) is > http://arxiv.org/pdf/astro-ph/0605728 > The Spiral Structure of the Outer Milky Way in Hydrogen (2006) > Authors: E.S. Levine, Leo Blitz, Carl Heiles > > > s. > > > ------------------------------------------------------------------------- > Take Surveys. Earn Cash. Influence the Future of IT > Join SourceForge.net's Techsay panel and you'll get the chance to share your > opinions on IT & business topics through brief surveys - and earn cash > http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV > _______________________________________________ > Celestia-developers mailing list > Cel...@li... > https://lists.sourceforge.net/lists/listinfo/celestia-developers > |