21P/Giacobini-Zinner 2018-Jul-11 Charles Bell

21P/Giacobini-Zinner
2018-Jul-11 06:43:49 UTC
Stack 6 x 54 secs
Sky motion 1.87"/min P.A. 041.2 deg
Magnitude 13.0 R aperture radius 8.2" (UCAC4)
Coma 87" x 59" extended PA 220 deg
Tail 2.2 arc min PA 225 deg
Charles Bell H47 Vicksburg
0.3-m Schmidt-Cassegrain + CCD + R filter

Ephemeris data:
t - T = -60.99459 days
Delta = 0.759 AU
r = 1.320 AU
El