46p 20180927 mmattiazzo

46P Wirtanen.
2018 September 27 at 10:15UT.
Large aperture V phot = 11.5 using UCAC4 comparisons.
Coma = 5'.
Brightness is running to formula
m1 = 8.0 + 5 log d + 27.0 log r(t - 12)
as predicted by Seiichi Yoshida.