Comet C/2021 B2 (PANSTARRS)

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Observation date	image	Photometry (FOCAS)	Afρ	astrometry	Observatory
20210118	X	X		X	X02 - TelescopeLive, Chile

COMET C/2021 B2 (PANSTARRS)

Photometric data obtained from FOCAS-II software

COD X02

OBS BRIXIIS Observatory

CATALOG: Gaia DR2 - BAND: G

10x10 20x20 30x30 40x40 50x50 60x60 SNR SB COD

COMET UTC +/- +/- +/- +/- +/- +/- N FWHM CAT

------------ ------------------- ----- ----- ----- ----- ----- ----- ---- ---- ---

C/2021 B2 18/01/2021 03:28:41 19.52 19.47 19.12 18.73 18.58 5.1 20.0 X02

C/2021 B2 18/01/2021 03:28:41* 0.14 0.24 0.24 0.46 0.85 6 1.4 Gai

AFRHO LOG

COMET UTC DELTA r BOX " MAG RSR CM +/- AFRHO OBS

------------ ------------------- ----- ----- ----- ----- --- ----- ---- ----- ---

C/2021 B2 18/01/2021 03:28:41 2.39 2.76 11.54 19.59 5 6 1 0.788 X02

Af(rho) data according the CARA-approach is available via request to CARA-coordinator

http://cara.uai.it

Comet C/2021 B2 (PANSTARRS) (astro.vanbuitenen.nl)

Discovery:

[ CBET 4921 ]

last updated: 2021-01-23

M.P.E.C. 2021-B120: COMET C/2021 B2 (PANSTARRS)

R. Wainscoat reports the discovery of a comet in four 45-second w-band survey images taken by Pan-STARRS 1 (F51) on Jan. 17 UT. He reports a condensed 0".2 coma and a straight 5" tail at position angle 50 deg. Prediscovery positions were subsequently reported by Catalina Sky Survey (703) and Pan-STARRS 1 (F51) going back to Dec. 2020. Additional reports of cometary features are as follows:

OC Date Reporter Coma Tail PA Exposures

F51 2020-12-24 R. Weryk 0".3 4" 40 2x45s

568 2021-01-18 R. Weryk 2" 8" 50-85 3x60s

Q62 2021-01-18 H. Sato 8" 10" 80 12x60s

X02 2021-01-18 E. Bryssinck 6" 7" 58 22x60s

F51 2021-01-18 M. Wawerzonnek 3" 7" 50-70 4x80s