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Observation date

image

Photometry

(FOCAS)

Afρ

astrometry

Observatory

20180605

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B96 - BRIXIIS

20180622

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B96 - BRIXIIS

20180626

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B96 - BRIXIIS

20180627

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B96 - BRIXIIS

20180628

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20180629

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20180630

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B96 - BRIXIIS

20180701 - incr. magn.

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B96 - BRIXIIS

20180702 - outburst

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B96 - BRIXIIS

20180703

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20180704

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20180705

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I89 - Nerpio Spain

20180707

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B96 - BRIXIIS

20180708

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B96 - BRIXIIS

20180709

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20180712

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B96 - BRIXIIS

20180714

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B96 - BRIXIIS

20180715 - outburst

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B96 - BRIXIIS

20180716

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B96 - BRIXIIS

20180718

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B96 - BRIXIIS

20180718 - spectrum





B96 - BRIXIIS

20180719

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20180722

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B96 - BRIXIIS

20180724

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B96 - BRIXIIS













Comet C/2017 S3 (PANSTARRS)

Photometric data obtained from FOCAS-II software


COD B96

CON BRIXIIS Observatory - Eyckensbeekstraat 2, B-9150 Kruibeke, Belgium

CATALOG: USNO A2.0 / CMC 14-15 - BAND: R


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

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

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

C/2017 S3     05/06/2018 23:28:41  16.70  16.12  15.95  15.91  15.76  15.81   5.2  15.7  B96

C/2017 S3     05/06/2018 23:28:41*  0.20   0.22   0.25   0.20   0.23   0.33     3   3.9  USN

C/2017 S3     22/06/2018 00:02:51  16.18  15.36  14.97  14.77  14.67  14.62   9.6  17.1  B96

C/2017 S3     22/06/2018 00:02:51*  0.03   0.05   0.03   0.04   0.05   0.12     6   3.7  USN

C/2017 S3     26/06/2018 01:15:15  15.63  14.79  14.30  13.95  13.70  13.50  15.0  16.9  B96

C/2017 S3     26/06/2018 01:15:15*  0.01   0.01   0.02   0.02   0.02   0.03     4   3.8  USN

C/2017 S3     27/06/2018 01:31:16  15.69  14.88  14.40  14.07  13.84  13.68  10.6  16.6  B96

C/2017 S3     27/06/2018 01:31:16*  0.03   0.05   0.05   0.04   0.03   0.02     5   4.0  USN

C/2017 S3     28/06/2018 00:37:43  15.77  14.94  14.50  14.22  14.03  13.88  10.6  16.5  B96

C/2017 S3     28/06/2018 00:37:43*  0.08   0.09   0.12   0.13   0.16   0.19     8   3.9  USN

C/2017 S3     29/06/2018 00:25:54  15.77  14.92  14.49  14.21  14.00  13.82   8.8  16.6  B96

C/2017 S3     29/06/2018 00:25:54*  0.06   0.11   0.19   0.24   0.31   0.40     6   3.9  USN

C/2017 S3     30/06/2018 00:24:27  15.79  14.96  14.50  14.18  13.96  13.79  10.8  16.7  B96

C/2017 S3     30/06/2018 00:24:27*  0.03   0.05   0.06   0.07   0.06   0.05     6   3.9  USN

C/2017 S3     01/07/2018 00:29:18  15.24  14.37  13.94  13.67  13.48  13.34  16.3  16.8  B96

C/2017 S3     01/07/2018 00:29:18*  0.11   0.18   0.20   0.22   0.24   0.25     8   3.7  USN

C/2017 S3     02/07/2018 00:41:01  14.55  13.61  13.12  12.77  12.49  12.27  24.8  17.4  B96

C/2017 S3     02/07/2018 00:41:01*  0.11   0.19   0.23   0.26   0.28   0.29     6   3.7  USN

C/2017 S3     03/07/2018 00:32:01  13.93  13.01  12.50  12.16  11.90  11.70  31.1  17.2  B96

C/2017 S3     03/07/2018 00:32:01*  0.10   0.15   0.19   0.20   0.21   0.23    24   3.9  USN

C/2017 S3     04/07/2018 03:35:56  13.51  12.62  12.10  11.72  11.43  11.20  17.9  17.1  I89

C/2017 S3     04/07/2018 03:35:56*  0.31   0.43   0.49   0.53   0.56   0.59     8   3.0  USN

C/2017 S3     07/07/2018 00:50:27  14.32  13.60  13.25  12.99  12.78  12.62  23.3  16.8  B96

C/2017 S3     07/07/2018 00:50:27*  0.04   0.05   0.07   0.09   0.11   0.13    34   3.3  USN

C/2017 S3     08/07/2018 00:43:35  14.45  13.67  13.31  13.07  12.89  12.77  11.8  15.7  B96

C/2017 S3     08/07/2018 00:43:35*  0.07   0.05   0.05   0.09   0.12   0.16    17   3.5  USN

C/2017 S3     09/07/2018 00:39:18  14.36  13.45  13.07  12.82  12.63  12.48  14.5  17.3  B96

C/2017 S3     09/07/2018 00:39:18*  0.05   0.06   0.07   0.08   0.10   0.12    33   3.5  USN

C/2017 S3     12/07/2018 22:51:42  14.66  13.59  13.05  12.71  12.47  12.29   6.7  16.3  B96

C/2017 S3     12/07/2018 22:51:42*  0.03   0.03   0.03   0.02   0.02   0.02     5   3.3  USN

C/2017 S3     14/07/2018 00:45:34  14.74  13.69  13.11  12.73  12.46  12.26   7.2  16.5  B96

C/2017 S3     14/07/2018 00:45:34*  0.05   0.09   0.09   0.09   0.09   0.10    32   3.5  USN

C/2017 S3     15/07/2018 00:33:50  12.69  11.67  11.15  10.83  10.61  10.46  28.7  17.0  B96

C/2017 S3     15/07/2018 00:33:50*  0.17   0.22   0.26   0.29   0.30   0.30    41   3.7  USN

C/2017 S3     16/07/2018 23:43:08  12.48  11.47  10.93  10.56  10.27  10.04  26.0  15.7  B96

C/2017 S3     16/07/2018 23:43:08*  0.02   0.02   0.03   0.03   0.02   0.02     7   3.9  USN

C/2017 S3     18/07/2018 00:35:17  11.78  10.74  10.18   9.79   9.51   9.29  35.3  16.8  B96

C/2017 S3     18/07/2018 00:35:17*  0.41   0.50   0.54   0.57   0.59   0.60    46   3.5  USN

C/2017 S3     19/07/2018 00:13:23  11.87  10.90  10.40  10.07   9.83   9.64  26.3  16.5  B96

C/2017 S3     19/07/2018 00:13:23*  0.20   0.25   0.29   0.32   0.33   0.34    37   3.9  USN

C/2017 S3     22/07/2018 00:52:14  12.83  11.84  11.41  11.14  10.94  10.78  11.8  15.8  B96

C/2017 S3     22/07/2018 00:52:14*  0.05   0.06   0.07   0.08   0.09   0.10    40   3.6  USN

C/2017 S3     24/07/2018 01:12:10  13.44  12.25  11.72  11.38  11.13  10.94   5.9  15.7  B96

C/2017 S3     24/07/2018 01:12:10*  0.06   0.08   0.08   0.09   0.09   0.09    42   3.2  USN




                                                                     AFRHO         LOG

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

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

C/2017 S3     05/06/2018 23:28:41    2.14   1.70  12.90  16.46    5     33     6  1.520  B96

C/2017 S3     22/06/2018 00:02:51    1.78   1.41  15.50  15.68   10     32     3  1.512  B96

C/2017 S3     26/06/2018 01:15:15    1.68   1.33  16.39  15.03   15     47     3  1.672  B96

C/2017 S3     27/06/2018 01:31:16    1.66   1.31  16.63  15.09   11     42     4  1.622  B96

C/2017 S3     28/06/2018 00:37:43    1.63   1.30  16.87  15.16   11     37     3  1.569  B96

C/2017 S3     29/06/2018 00:25:54    1.61   1.28  17.12  15.14    9     36     4  1.552  B96

C/2017 S3     30/06/2018 00:24:27    1.59   1.26  17.39  15.14   11     34     3  1.526  B96

C/2017 S3     01/07/2018 00:29:18    1.56   1.24  17.67  14.57   16     53     3  1.727  B96

C/2017 S3     02/07/2018 00:41:01    1.54   1.22  17.96  13.78   25    103     4  2.012  B96

C/2017 S3     03/07/2018 00:32:01    1.51   1.20  18.25  13.15   31    172     6  2.237  B96

C/2017 S3     04/07/2018 03:35:56    1.48   1.17  18.60  12.71   18    239    13  2.379  I89

C/2017 S3     07/07/2018 00:50:27    1.41   1.11  19.57  13.66   23     81     3  1.910  B96

C/2017 S3     08/07/2018 00:43:35    1.38   1.09  19.93  13.74   12     70     6  1.846  B96

C/2017 S3     09/07/2018 00:39:18    1.36   1.07  20.30  13.54   15     78     5  1.894  B96

C/2017 S3     12/07/2018 22:51:42    1.26   0.99  21.93  13.54    7     57     8  1.755  B96

C/2017 S3     14/07/2018 00:45:34    1.23   0.96  22.43  13.57    7     51     7  1.704  B96

C/2017 S3     15/07/2018 00:33:50    1.20   0.94  22.91  11.57   29    291    10  2.465  B96

C/2017 S3     16/07/2018 23:43:08    1.15   0.90  23.92  11.26   26    322    12  2.508  B96

C/2017 S3     18/07/2018 00:35:17    1.13   0.88  24.48  10.49   35    592    17  2.773  B96

C/2017 S3     19/07/2018 00:13:23    1.10   0.85  25.04  10.67   26    456    17  2.659  B96

C/2017 S3     22/07/2018 00:52:14    1.02   0.78  26.91  11.61   12    140    12  2.147  B96

C/2017 S3     24/07/2018 01:12:10    0.98   0.73  28.27  11.89    6     87    15  1.938  B96

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


http://cara.uai.it

Comet C/2017 S3 was discovered by R. J. Wainscoat and R. Weryk, Institute for Astronomy, University of Hawaii, in CCD images taken with the 1.8-m Pan-STARRS1 telescope at Haleakala on Sept. 23 UT .  The object was noted to be very faint with possible asymmetry to the east with magnitude of about 21.3.

Afp - parameter - radius 10.000 km vs days from perihelion

Afp with radius 10.000km versus sun distance (in AU)