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Malcolm,
I discussed this cute little Supernova with Astroron (Ron) in another thread, and we thought that the SN was probably visual magn. 14.8 or even somewhat fainter.
(but I haven't seen any accurate magn estimates in the science thread, as yet!)
Even under perfect conditions, a 12 inch would only reach a limit of about visual magnitude 15.4, according to Bradley Schaefer's (often cited) detailed investigation of telescopic limiting magnitude.
Given that the host galaxy is likely to be 1.75x to 2x as far away as the Virgo Cluster of galaxies, this explains why this SN is so faint.
(See also my theoretical discussion of the anticipated Apparent Magnitude and Colour of this supernova, in the science forum thread.)
Last edited by madbadgalaxyman; 26-10-2011 at 09:59 AM.
Reason: more info
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