21P/Giacobini-Zinner 2018-Jun-04 Charles Bell

21P/Giacobini-Zinner
2018-Jun-04 07:43:13 UTC
Stack 3 x 91 sec
Sky Motion 1.60 "/min PA 031.4 deg
Magnitude 15.0 R aperture radius 8.2 arc sec (UCAC4)
Coma 34" x21" extended PA 240 deg
Tear drop shaped
Tail 1.5 arc min curved toward PA 250 deg
Charles Bell H47 Vicksburg
0.3-m Schmidt-Cassegrain + CCD + R filter

Ephemeris data:
t - T = -97.95333 days
Delta = 1.119 AU
r = 1.651 AU
El