2I/Borisov 2019-Dec-01 Charles Bell

2I/Borisov
2019-Dec-01 11:16:11 UTC
Exposure 900 secs R filter
Sky Motion 2.15"/min PA 151.6
ra 169.10111 dec -12.91659
Magnitude 16.63 +/- 0.08 R photAp 8.5 arcsec UCAC4
Coma diameter 17 arcsec
Tail 80 arcsec PA 320
Charles Bell H47 Vicksburg
0.3-m Schmidt-Cassegrain + CCD + R filter
ArcSinh() stretched with Fits Liberator
Annotated and cropped with Photoshop
Astrometry and Photometry with Astrometrica

JPL Horizons Ephemeris Data:
JD = 2458818.96957
t - T = -7.30101 days
RA 169.10074 Dec -12.91575
Delta = 2.045 au
r = 2.013 au
Elong. = 74.1 deg
Phase = 28.1 deg
PsAng = 289.3 deg antisolar direction
PsAMV = 329.3 deg -v direction
PlAng = -16.8 deg orbit plane angle
True Anomaly = 354.9 deg
Constellation: Crater (Crt)

Comet 2I/Borisov shows a short tail toward the northwest (upper right).
Comet 2I/Borisov passes perihelion 2019-Dec-08 at 2.007 au.

Light curves indicate continued brightening peaking near 15th magnitude in December 2019 with a phase near 28 degrees all month.
Comet 2I is currently in the morning sky constellation of Crater and will move into Hydra on December 18, 2019.
Earth passes closest to the comet on 2019-Dec-29 at 1.937 au.
Earth passes through the orbit plane of the comet on 2020-Jan-29.
The object is at a higher altitude above the eastern horizon each morning at the start of morning twilight as solar elongation increases.

2I/Borisov was discovered by Genady Borisov at R magnitude 17.8 on 2019-Aug-30 at located at the MARGO observatory near Nauchnij, Crimea.