Thread: Sagittarius Nova
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Old June 29th 12, 04:28 PM posted to sci.astro.amateur
palsing[_2_]
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Default Sagittarius Nova
On Friday, June 29, 2012 7:04:07 AM UTC-7, Anders Eklöf wrote:

That woud be closer to mag. -9 than mag. 9

No, definitely not mag -9, read this...

http://www.icq.eps.harvard.edu/MagScale.html