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88P/HOWELL

88P on Kronck’s cometography

Photometric data obtained by use of FOCAS-II software

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

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

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

88P           22/03/2020 23:44:07  16.45  15.89  15.65  15.52  15.45  15.46  14.1  17.8  B96

88P           22/03/2020 23:44:07*  0.01   0.02   0.03   0.01   0.00   0.01     2   3.8  Gai

88P           05/04/2020 22:28:42  15.80  15.21  14.93  14.75  14.63  14.59  14.9  16.6  B96

88P           05/04/2020 22:28:42*  0.00   0.04   0.06   0.07   0.12   0.14     2   3.8  Gai

88P           14/04/2020 22:19:53  15.65  15.04  14.74  14.57  14.50  14.50  23.2  17.7  B96

88P           14/04/2020 22:19:53*  0.02   0.06   0.10   0.12   0.12   0.12     3   3.7  Gai

88P           22/04/2020 22:44:25  15.61  14.92  14.59  14.38  14.23  14.09  23.7  17.9  B96

88P           22/04/2020 22:44:25*  0.01   0.00   0.01   0.02   0.02   0.02     3   3.9  Gai

88P           27/05/2020 22:55:24  15.64  14.98  14.59  14.33  14.18  14.05  16.2  17.5  B96

88P           27/05/2020 22:55:24*  0.00   0.00   0.00   0.00   0.00   0.00     1   3.9  Gai

                                                                     AFRHO         LOG

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

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

88P           22/03/2020 23:44:07    1.34   2.30  20.58  15.95   14     38     3  1.579  B96

88P           05/04/2020 22:28:42    1.21   2.20  22.87  15.17   15     58     4  1.763  B96

88P           14/04/2020 22:19:53    1.15   2.14  24.08  14.98   23     59     3  1.771  B96

88P           22/04/2020 22:44:25    1.11   2.09  24.87  14.79   24     62     3  1.796  B96

88P           27/05/2020 22:55:24    1.10   1.86  25.01  14.79   16     49     3  1.690  B96

88P/Howell is a periodic comet with a 5.5 year orbital period. It was discovered on 29.35 August 1981 by Ellen Howell (California Institute of Technology, California, USA), on photographic plates obtained with the 0.46-m Schmidt telescope at Palomar Observatory . She estimated the total magnitude as 15. Howell confirmed the discovery on August 30.37. The comet has been confirmed by C. Kowal with the 1.2-m

Schmidt. The comet was described as diffuse and tailless, with some evidence of condensation on the 1.2-m exposure. It was then located in Cetus. Comet was last observed on 1982 jan. 16.10. Comet HOWELL (1981k) 1981 Q1 was assigned with IAUC 3631 issued on 1981 sept.1 by Brian G. Marsden.

Recovery COMET HOWELL (1987h) was made on 1987 march 6.6 and assigned as P/1987 E1 by A. C. Gilmore and P. M. Kilmartin, Mount John University Observatory, report that the object is diffuse with condensation. IAUC 4335 issued on 1987 march 9.

Last updated: 2020-10-20