Re: comet 45P -- whats going on ?

Seiichi Yoshida's Home Page gives

http://www.aerith.net/comet/catalog/0045P/2016.html

        m1 = 14.2 + 5 log d + 23.0 log r  [ ,0]  (             - 2016 Dec. 31)

        m1 = 12.0 + 5 log d + 15.0 log r  [0, ]  (2016 Dec. 31 -             )

whereas Guide uses the values 14.0 and 8.0 - which gives 3.7 mag

instead of 6.8 mag when using 12.0 and 15.0 as mentioned by Seiichi Yoshida.

/André