46P/Wirtanen 2018-Sep-19 Charles Bell

46P/Wirtanen
2018-Sep-19 09:33:14 UTC
Sky Motion 0.77"/min P.A. 154.7 deg
Exposure 1440 seconds
Stacked in Astrometrica
Magnitude 15.3 R aper radius 10.4 arcsec UCAC4
Afrho: 17.0 cm aperture radius = 4383 km
Coma 40" x 33" extended 280 deg
Tail 1.3 arc min PA 280 deg
Charles Bell H47 Vicksburg
0.3-m Schmidt-Cassegrain + CCD + R filter
ArcSinh stretched in FitsLiberator and Annotated and cropped in Photoshop
Observation data image

Ephemeris data:
t - T = -84.53812 days
Delta = 0.581 AU
r = 1.513 AU
El

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