[Aavso-photometry] Comet 17P Holmes UBVRI Images and profiles

[Canopus56]

Jeff, 

Your reference star del Per is a variable - although
the spread is small.  lam Per is not a variable.  See
chart - 

http://gallery.utahastronomy.com/d/10501-2/20071027_17P_Photom.PNG

Nice 3-D display method. 

- Kurt 


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