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Old 01-06-2009, 11:06 PM
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Blue Skies (Jacquie)
It's about time

Blue Skies is offline
 
Join Date: Nov 2005
Location: Melbourne
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Quote:
Originally Posted by vaztr View Post
Headings from SB to Sub Type (inclusive) mean nothing to me any chance someone out there can give me a hand.
I can help with some of these:

SB is surface brightness, which is different to Vmag (Visual magnitude)

Max and Min - um, might have a guess and say it's angular size with Max being the longest axis and Min being the shortest.

PA is Position Angle. 0 is north, 90 is east and so on.

Sub Type is refering to a number of things. For Galaxies its telling you whether its just a Spiral, a barred Spiral, an eliptical or... other. I don't recognise all of them, it must a more modern version of the Hubble classification I'm not familiar with. For Globular Clusters (GC) its telling you how condensed it is - there is a classification system for globs that rates whether they are rather loose or very condensed. I don't know the Open cluster classes.

Then you've got the RA and Dec coords.

Hope that helps a little and I'll look forward to other peoples clarification on the classes in Sub Type.
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