Comments on: How tight are your arms? http://chrislintott.net/2008/06/02/how-tight-are-your-arms/ The Universe as seen from the perspective of an astronomical researcher, presenter and writer. Thu, 08 Jul 2010 19:50:01 +0000 hourly 1 http://wordpress.org/?v=3.2.1 By: Alice Sheppard http://chrislintott.net/2008/06/02/how-tight-are-your-arms/comment-page-1/#comment-60882 Alice Sheppard Mon, 02 Jun 2008 18:37:06 +0000 http://chrislintott.net/2008/06/02/how-tight-are-your-arms/#comment-60882 Chris - please could we have a definition of "tightness of arms", please? Since most galaxies appear to just have 2 arms, it's rather hard to make the distinction. Is it just how close they are together, or how much space we can see through them, or how much matter there appears to be in each one, or how neat and tidy they look, or what? It would be great to hear more. Glad you seem to be enjoying yourself out there - bring some of those pastry things home for June 10th . . . Chris – please could we have a definition of “tightness of arms”, please? Since most galaxies appear to just have 2 arms, it’s rather hard to make the distinction. Is it just how close they are together, or how much space we can see through them, or how much matter there appears to be in each one, or how neat and tidy they look, or what? It would be great to hear more.

Glad you seem to be enjoying yourself out there – bring some of those pastry things home for June 10th . . .

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