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Observation date

image

Photometry

(FOCAS)

Afρ

astrometry

Observatory

20201028

X

X


X

Z08 - Telescope.Live

20201029

X

X


X

Z08 - Telescope.Live











































COMET C/2020 U5 (PANSTARRS)

Photometric data obtained from FOCAS-II software


OBS BRIXIIS Observatory

CATALOG: Gaia DR2 - BAND: G


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

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

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

C/2020 U5     28/10/2020 03:31:23  19.81  19.55  19.37  19.21  19.15          4.9  20.1  Z08

C/2020 U5     28/10/2020 03:31:23*  0.24   0.30   0.39   0.62   0.74            5   2.8  Gai

C/2020 U5     29/10/2020 04:12:48  19.32  18.21  17.51  17.19  17.10  17.13   4.8  19.8  Z08

C/2020 U5     29/10/2020 04:12:48*  0.16   0.15   0.08   0.07   0.08   0.16     6   2.2  Gai


                                                                     AFRHO         LOG

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

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

C/2020 U5     28/10/2020 03:31:23    5.73   5.95   4.81  20.13    5     99    20  1.996  Z08

C/2020 U5     29/10/2020 04:12:48    5.71   5.94   4.83  20.10    5    101    21  2.004  Z08

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


http://cara.uai.it

Comet C/2020 U5 (PANSTARRS)  (astro.vanbuitenen.nl)


MPEC 2020-U261 :  Comet C/2020 U5 (PANSTARRS)


This comet was discovered by R. Weryk and Y. Ramanjooloo, Institute for Astronomy, University of Hawaii, comet was found in four 45-s w-band CCD images obtained with the Pan-STARRS1 1.8-m Ritchey-Chretien reflector at Haleakala, Hawaii, on Oct. 22 ; Weryk notes that the discovery images show a tail about 4" long toward p.a. 220 degrees with a diffuse coma having size 2".1 (full-width-at-half-maximum) in 1".3 seeing.  Weryk also identified four 45-s w-band pre-discovery Pan-STARRS1 images taken on Sept. 25.6 that show no tail but a diffuse coma of size about 2".6 (FWHM) in 1".5 seeing. Also, prediscovery detections were located on Mount Lemmon Survey images. This object was assigned as comet C/2020 U5 (PANSTARRS) by CBET 4881 issued on 2020 oct. 29.


Additional reports of cometary features are as follows:


OC   Date        Reporter           Coma    Tail    PA          Exposures

F52  2020-09-25  R. Weryk           1".1                          4x45s

F51  2020-10-23  R. Weryk           0".8      4"    160-220       4x60s

H06  2020-10-24  H. Sato            6"                            8x120s

L07  2020-10-26  E. Guido           8"                           48x180s


Last updated: 2020-10-31