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Observation date

image

Photometry

(FOCAS)

Afρ

astrometry

Observatory

20201122

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Z08 - Telescope.Live

20210416

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B96 - BRIXIIS

20210226

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B96 - BRIXIIS

20210425

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B96 - BRIXIIS

20210607

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B96 - BRIXIIS

20210612

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B96 - BRIXIIS

20210613

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B96 - BRIXIIS

20210718

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B96 - BRIXIIS

20220310

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B96 - BRIXIIS

20220324

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B96 - BRIXIIS

20220420

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B96 - BRIXIIS

20220427

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B96 - BRIXIIS

20221226

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B96 - BRIXIIS

20230207

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B96 - BRIXIIS

20230213

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B96 - BRIXIIS

COMET C/2020 V2 (ZTF)

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 V2     26/02/2021 22:33:48  17.24  16.87  16.59  16.08  15.71  15.45   7.0  16.2  B96

C/2020 V2     26/02/2021 22:33:48*  0.00   0.00   0.00   0.00   0.00   0.00     1   4.1  Gai

C/2020 V2     16/04/2021 22:25:10  17.18  17.11  17.13                       14.0  18.3  B96

C/2020 V2     16/04/2021 22:25:10*  0.03   0.06   0.11                          3   3.8  Gai

C/2020 V2     25/04/2021 21:52:57  17.18  16.98  17.07                       12.3  17.4  B96

C/2020 V2     25/04/2021 21:52:57*  0.01   0.03   0.03                          2   3.9  Gai

C/2020 V2     07/06/2021 23:12:19  18.61  17.85  17.94                        4.6  17.6  B96

C/2020 V2     07/06/2021 23:12:19*  0.28   0.06   0.06                          3   3.3  Gai

C/2020 V2     12/06/2021 23:33:19  17.08  16.73  16.82                        8.0  17.7  B96

C/2020 V2     12/06/2021 23:33:19*  0.13   0.08   0.09                          3   3.4  Gai

C/2020 V2     13/06/2021 23:04:57  17.09  16.81  16.79                        9.3  18.0  B96

C/2020 V2     13/06/2021 23:04:57*  0.12   0.16   0.20                          3   3.8  Gai

C/2020 V2     18/07/2021 21:20:34  16.83  16.48  16.54  16.50                12.8  16.4  B96

C/2020 V2     18/07/2021 21:20:34*  0.05   0.05   0.09   0.18                   2   3.9  G

C/2020 V2     10/03/2022 21:59:20  14.84  14.11  13.88  13.76  13.66  13.55  25.4  17.8  B96

C/2020 V2     10/03/2022 21:59:20*  0.01   0.01   0.02   0.01   0.04   0.04     2   3.6  Gai

C/2020 V2     24/03/2022 21:52:17  14.79  14.10  13.89  13.84  13.79  13.79  29.8  17.6  B96

C/2020 V2     24/03/2022 21:52:17*  0.00   0.00   0.00   0.00   0.01   0.02     2   3.9  Gai

C/2020 V2     20/04/2022 21:23:08  14.69  13.99  13.77  13.67  13.62  13.58  29.8  18.1  B96

C/2020 V2     20/04/2022 21:23:08*  0.00   0.02   0.01   0.03   0.03   0.02     2   3.9  Gai

C/2020 V2     27/04/2022 21:36:11  14.67  14.01  13.79  13.70  13.63  13.60  30.9  18.2  B96

C/2020 V2     27/04/2022 21:36:11*  0.00   0.00   0.01   0.01   0.01   0.01     2   3.9  Gai

C/2020 V2     26/12/2022 17:24:04  12.70  11.84  11.39  11.09  10.88  10.72  49.7  17.8  B96

C/2020 V2     26/12/2022 17:24:04*  0.00   0.00   0.00   0.00   0.00   0.00     2   3.3  Gai

C/2020 V2     07/02/2023 18:05:38  12.71  11.84  11.38  11.08  10.87  10.71  28.4  18.0  B96

C/2020 V2     07/02/2023 18:05:38*  0.01   0.01   0.01   0.01   0.01   0.02     2   4.1  Gai

C/2020 V2     13/02/2023 18:39:55  12.79  11.92  11.46  11.15  10.94  10.78  36.9  18.1  B96

C/2020 V2     13/02/2023 18:39:55*  0.00   0.00   0.00   0.01   0.00   0.00     2   3.4  Gai


                                                                     AFRHO         LOG

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

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

C/2020 V2     26/02/2021 22:33:48    7.10   7.86   3.89  18.39    7   1322   189  3.121  B96

C/2020 V2     16/04/2021 22:25:10    6.82   7.49   4.04  17.22   14   3258   233  3.513  B96

C/2020 V2     25/04/2021 21:52:57    6.84   7.43   4.03  17.26   12   3099   252  3.491  B96

C/2020 V2     07/06/2021 23:12:19    7.08   7.10   3.89  19.15    5    531   115  2.725  B96

C/2020 V2     12/06/2021 23:33:19    7.12   7.07   3.87  17.29    8   2958   370  3.471  B96

C/2020 V2     13/06/2021 23:04:57    7.13   7.06   3.87  17.34    9   2815   303  3.449  B96

C/2020 V2     18/07/2021 21:20:34    7.31   6.79   3.77  16.99   13   3784   296  3.578  B96

C/2020 V2     10/03/2022 21:59:20    4.30   4.94   6.42  15.03   25   4189   165  3.622  B96

C/2020 V2     24/03/2022 21:52:17    4.27   4.82   6.45  14.88   30   4574   153  3.660  B96

C/2020 V2     20/04/2022 21:23:08    4.35   4.60   6.34  14.83   30   4505   151  3.654  B96

C/2020 V2     20/04/2022 21:23:08    4.35   4.60   6.34  14.83   30   4505   151  3.654  B96

C/2020 V2     26/12/2022 17:24:04    2.09   2.69  13.20  12.34   50   3499    70  3.544  B96

C/2020 V2     07/02/2023 18:05:38    2.31   2.45  11.94  12.46   28   3198   113  3.505  B96

C/2020 V2     13/02/2023 18:39:55    2.39   2.43  11.53  12.58   37   2999    81  3.477  B96

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


http://cara.uai.it

Comet 2020 V2 (ZTF) (astro.vanbuitenen.nl)


Discovery:


In a survey called the "Zwicky Transient Facility" (ZTF) , an apparently 19th magnitude asteroidal object discovered in CCD images taken using the 1.2-m Schmidt telescope at Palomar , has been found to show cometary activity by CCD astrometrists elsewhere.  H. Sato, Tokyo, Japan, described this object as a condensed coma 8" in diameter with no tail; the magnitude was 18.9.. L. Buzzi, Varese, Italy, reports no obvious coma or tail, the object appeared clearly larger (FWHM 4".2) than nearby stars of similar brightness (3".8);  Hirohisa Sato, Sukagawa, Fukushima-ken, Japan,  found a moderately condensed coma about 8" in diameter and of total mag 18.2 but with no tail. A. Valvasori, Padulle, Italy, found a diffuse coma about 6" in diameter with total mag 18.4-18.9.  ( CBET 4887 )


MPEC 2020-W177 : COMET C/2020 V2 (ZTF)


 This object was originally submitted as part of incidental astrometry from

ZTF (I41) on Oct. 31 UT.  Reports of cometary features are as follows:


OC   Date        Reporter           Coma    Tail    PA          Exposures

H06  2020-11-12  H. Sato            8"                           18x60s

675  2020-11-17  B. Bolin           2".8

L07  2020-11-19  E. Guido           7"                           25x120s

Q11  2020-11-20  H. Sato            8"                           12x60s

I89  2020-11-24  A. Valvasori       6"                           15x120s

Q11  2020-11-24  H. Sato            8"                            8x90s



Last updated: 2020-10-31