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Old 09-01-2010, 07:17 PM
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pgc hunter
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Fantastic night of fun there Rob! You're punching pretty deep with the Tasco, I'm impressed.

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Thanks all! I should add that all magnitudes are those given in Starry Night, which is increasingly worrying me! Also, the NGC layer in SN gave NGC 1427 in a certain position at mag 13.4 (and naturally it was beyond me), but the Principal galaxies layer gave NGC 1427 at a different position at mag 11.8 (and I could see it). Haven't bothered to sort it out, could go to Simbad or elsewhere, but just to let you know there could be anomolies in the report.

Another interesting thing - I prepared charts on red card. Under red light, these appeared basically white, and left my eyes with a rich blue haze which disappeared as they re-adapted!! http://www.iceinspace.com.au/forum/....milies/lol.gif
Galaxy mags down below around 11 are quite dodgy, I don't know the mechanics of it, but Les will have the answers, as we discussed it in my reports a number of times.

However, use this link: http://messier45.com/cgi-bin/dsdb/dsb.pl

and just type in the object in the query box and it brings up magnitude and surface brightness for galaxies. It's a fantastic site and certainly very useful!

You can also use NED, just type in the catalouge number and look up the photometric datapoints for your galaxy to get blue (and sometimes V) mags.
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