VISUAL OBSERVATIONS OF COMET C/2000 WM1 (LINEAR) ************************************************* ( Martin LEHKY , Severni 765 , Hradec Kralove 3 , 500 03 , CZECH REPUBLIC ) COMET DATE (UT) MM MAG. RF AP. T F/PWR COMA DC TAIL PA OBS. 2000WM1 2001 08 14.99 M 12.4 HS 42 L 5 81 1.4 3 ICQ XX LEH 2000WM1 2001 08 15.96 M 12.6 HS 42 L 5 81 1.5 3 ICQ XX LEH 2000WM1 2001 08 17.05 M 12.3 HS 42 L 5 81 1.5 3 ICQ XX LEH 2000WM1 2001 08 23.99 M 11.9 HS 42 L 5 81 1.6 3 ICQ XX LEH 2000WM1 2001 08 25.00 M 11.9 HS 42 L 5 81 1.8 3 ICQ XX LEH 2000WM1 2001 08 26.02 M 11.8 HS 42 L 5 81 1.8 3 ICQ XX LEH 2000WM1 2001 08 26.98 M 11.4 HS 42 L 5 81 2 3 ICQ XX LEH 2000WM1 2001 08 30.02 M 11.5 HS 42 L 5 81 1.8 4 ICQ XX LEH 2000WM1 2001 08 31.10 M 11.5 HS 42 L 5 81 1.7 4 ICQ XX LEH 2000WM1 2001 09 19.86 M 11.4 TI 42 L 5 81 1.9 3 ICQ XX LEH 2000WM1 2001 09 21.84 M 11.6 TI 42 L 5 81 1.5 3 ICQ XX LEH 2000WM1 2001 09 22.85 M 11.6 TI 42 L 5 81 1.4 3 ICQ XX LEH 2000WM1 2001 10 12.92 M 11.1 TT 42 L 5 81 1.8 4/ ICQ XX LEH 2000WM1 2001 10 13.85 M 10.9 TT 42 L 5 81 2 4 ICQ XX LEH 2000WM1 2001 10 14.85 M 10.9 TT 42 L 5 81 2 4 ICQ XX LEH 2000WM1 2001 10 15.88 M 10.7 TT 42 L 5 81 2.2 4 ICQ XX LEH 2000WM1 2001 10 22.79 M 10.0 TT 10 B 4 25 3 3 ICQ XX LEH 2000WM1 2001 11 01.81 M 8.8 TT 42 L 5 81 4 4 ICQ XX LEH 2000WM1 2001 11 02.75 M 8.4 TT 42 L 5 81 6 4 ICQ XX LEH 2000WM1 2001 11 05.78 M 8.3 TT 10 B 4 25 8 3 ICQ XX LEH 2000WM1 2001 11 09.88 M 8.1 TT 10 B 4 25 8 3 ICQ XX LEH 2000WM1 2001 11 10.74 M 7.8 TT 10 B 4 25 10 3 ICQ XX LEH 2000WM1 2001 11 13.74 M 6.5 TT 20 L 4 42 9 3/ ICQ XX LEH 2000WM1 2001 11 16.74 M 6.5 TT 8 B 10 12 3/ ICQ XX LEH 2000WM1 2001 11 18.01 M 6.4 TT 5 B 10 15 3/ ICQ XX LEH 2000WM1 2001 11 19.85 M 6.1 TT 8 B 10 15 3 ICQ XX LEH 2000WM1 2001 11 25.72 M 5.9 TT 5 B 10 18 3 ICQ XX LEH 2000WM1 2001 11 30.79 M 5.4 TT 8 B 10 15 3/ ICQ XX LEH 2000WM1 2001 12 07.83 M 5.4 TT 0.8E 1 20 4 ICQ XX LEH 2000WM1 2001 12 08.85 M 5.3 TT 0.8E 1 20 4 ICQ XX LEH 2000WM1 2001 12 09.74 M 5.3 TT 0.8E 1 20 4/ ICQ XX LEH 2000WM1 2001 12 13.74 M 5.3:TT 10 B 4 25 10 4 ICQ XX LEH 2000WM1 2002 04 03.11 M 8.9 TT 20 L 4 42 2.5 3 ICQ XX LEH 2000WM1 2002 04 04.10 M 9.0 TT 20 L 4 42 2.5 4 ICQ XX LEH 2000WM1 2002 04 08.10 M 9.4 TT 20 L 4 42 2 3/ ICQ XX LEH 2000WM1 2002 05 07.94 M 11.3 TI 20 L 4 42 2 3 ICQ XX LEH 2000WM1 2002 05 09.89 M 11.0 TT 20 R17 87 1.8 3 ICQ XX LEH 2000WM1 2002 05 11.91 M 11.4 TI 20 R17 87 1.5 3 ICQ XX LEH 2000WM1 2002 05 13.90 M 11.4 TI 20 L 4 42 2 3 ICQ XX LEH 2000WM1 2002 05 15.90 M 11.7 TI 42 L 5 81 1.8 3 ICQ XX LEH 2000WM1 2002 05 16.93 M 11.7 HS 42 L 5 81 1.8 3/ ICQ XX LEH 2000WM1 2002 05 17.92 M 11.7 HS 20 R17 87 1.5 3/ ICQ XX LEH 2000WM1 2002 05 18.89 M 11.8 TI 20 R17 87 1.5 3/ ICQ XX LEH 2000WM1 2002 06 17.89 M 12.7 HS 42 L 5 81 1.5 3 ICQ XX LEH 2000WM1 2002 06 18.92 M 12.7 HS 42 L 5 81 1.4 3 ICQ XX LEH 2000WM1 2002 06 26.88 B 13.3 HS 42 L 5 81 1 4 ICQ XX LEH 2000WM1 2002 06 28.90 B 13.7 HS 42 L 5 81 1 4 ICQ XX LEH 2000WM1 2002 06 29.90 B 13.7 HS 42 L 5 81 1.1 4/ ICQ XX LEH 2000WM1 2002 07 08.89 B 13.8 HS 42 L 5 162 1 4 ICQ XX LEH 2000WM1 2002 07 09.89 B 13.8 HS 42 L 5 162 1 4 ICQ XX LEH 2000WM1 2002 07 14.90 B 13.7 HS 42 L 5 162 1 4/ ICQ XX LEH DATE (UT) LM Observed from Published 2001 08 14.99 58 Hradec Kralove CZ ICQ 2001 08 15.96 57 Hradec Kralove CZ ICQ 2001 08 17.05 55 Hradec Kralove CZ ICQ 2001 08 23.99 55 Hradec Kralove CZ ICQ 2001 08 25.00 57 Hradec Kralove CZ ICQ 2001 08 26.02 58 Hradec Kralove CZ ICQ 2001 08 26.98 58 Hradec Kralove CZ ICQ 2001 08 30.02 63 Hradec Kralove CZ ICQ 2001 08 31.10 62 Hradec Kralove CZ ICQ 2001 09 19.86 58 Hradec Kralove CZ ICQ 2001 09 21.84 56 Hradec Kralove CZ ICQ 2001 09 22.85 56 Hradec Kralove CZ ICQ 2001 10 12.92 60 Hradec Kralove CZ ICQ 2001 10 13.85 56 Hradec Kralove CZ ICQ 2001 10 14.85 57 Hradec Kralove CZ ICQ 2001 10 15.88 50 Hradec Kralove CZ ICQ 2001 10 22.79 57 Hradec Kralove CZ ICQ 2001 11 01.81 50 Hradec Kralove CZ ICQ 2001 11 02.75 50 Hradec Kralove CZ ICQ 2001 11 05.78 58 Hradec Kralove CZ ICQ 2001 11 09.88 59 Brno CZ ICQ 2001 11 10.74 57 Brno CZ ICQ 2001 11 13.74 50 Hradec Kralove CZ ICQ 2001 11 16.74 58 Hradec Kralove CZ ICQ 2001 11 18.01 70 Serlich CZ ICQ 2001 11 19.85 62 Hradec Kralove CZ ICQ 2001 11 25.72 55 Hradec Kralove CZ ICQ 2001 11 30.79 48 Hradec Kralove CZ ICQ 2001 12 07.83 55 Hradec Kralove CZ ICQ 2001 12 08.85 58 Rtyne CZ ICQ 2001 12 09.74 55 Hradec Kralove CZ ICQ 2001 12 13.74 30 Hradec Kralove CZ ICQ 2002 04 03.11 52 Hradec Kralove CZ ICQ 2002 04 04.10 55 Hradec Kralove CZ ICQ 2002 04 08.10 55 Hradec Kralove CZ ICQ 2002 05 07.94 58 Hradec Kralove CZ ICQ 2002 05 09.89 57 Hradec Kralove CZ ICQ 2002 05 11.91 58 Hradec Kralove CZ ICQ 2002 05 13.90 58 Hradec Kralove CZ ICQ 2002 05 15.90 58 Hradec Kralove CZ ICQ 2002 05 16.93 62 Hradec Kralove CZ ICQ 2002 05 17.92 58 Hradec Kralove CZ ICQ 2002 05 18.89 55 Hradec Kralove CZ ICQ 2002 06 17.89 57 Hradec Kralove CZ ICQ 2002 06 18.92 56 Hradec Kralove CZ ICQ 2002 06 26.88 58 Hradec Kralove CZ ICQ 2002 06 28.90 62 Hradec Kralove CZ ICQ 2002 06 29.90 62 Hradec Kralove CZ ICQ 2002 07 08.89 60 Hradec Kralove CZ ICQ 2002 07 09.89 60 Hradec Kralove CZ ICQ 2002 07 14.90 62 Hradec Kralove CZ ICQ 2001 08 14.99 Diffuse nebula with central condensation. HS 3336.01352 (11.49) 8 c 7 HS 3336.01824 (13.72) HS 3336.00372 (11.61) 3 c 4 HS 3336.01784 (12.96) 2001 08 15.96 Diffuse nebula with central condensation. HS 3336.01352 (11.49) 9 c 6 HS 3336.01824 (13.72) HS 3336.00372 (11.61) 4 c 3 HS 3336.01784 (12.96) 2001 08 17.05 Diffuse nebula with central condensation. HS 3336.00258 (11.85) 9 c 1 HS 3336.00010 (12.54) HS 3336.00242 (11.62) 3 c 2 HS 3336.00974 (12.41) 2001 08 23.99 Diffuse nebula with central condensation. HS 3337.00661 (11.56) 8 c 0 HS 3337.01562 (11.64) HS 3337.01618 (11.72) 3 c 2 HS 3337.01729 (12.10) 2001 08 25.00 Diffuse nebula with central condensation. HS 3337.00661 (11.56) 8 c 0 HS 3337.01562 (11.64) HS 3337.01618 (11.72) 3 c 2 HS 3337.01729 (12.10) 2001 08 26.02 Diffuse nebula with central condensation. HS 3337.00661 (11.56) 7 c 1 HS 3337.01562 (11.64) HS 3337.01618 (11.72) 2 c 3 HS 3337.01729 (12.10) 2001 08 26.98 Diffuse nebula with central condensation. HS 3337.01899 (10.86) 5 c 1 HS 3337.01873 (11.14) c 3 HS 3337.01996 (11.63) c 10 HS 3350.00128 (12.13) 2001 08 30.02 Diffuse nebula with little strong central condensation. HS 3350.00919 (11.30) 3 c 6 HS 3350.00236 (12.10) HS 3350.00086 (11.20) 1 c 3 HS 3350.00802 (12.04) 2001 08 31.10 Diffuse nebula with little strong central condensation. HS 3350.00919 (11.30) 3 c 6 HS 3350.00236 (12.10) HS 3350.00086 (11.20) 1 c 3 HS 3350.00802 (12.04) 2001 09 19.86 Diffuse nebula with central condensation. TI 3355.00650 (11.40) 0 c 2001 09 21.84 Diffuse nebula with central condensation. TI 3356.01181 (11.30) 4 c 4 TI 3356.01166 (12.00) c 2 TI 3356.01175 (11.80) 2001 09 22.85 Diffuse nebula with central condensation. TI 3356.01181 (11.30) 4 c 4 TI 3356.01166 (12.00) c 2 TI 3356.01175 (11.80) 2001 10 12.92 Diffuse nebula with little strong central condensation. ( During observation the comet was close to bright star TT 3356.00020 9.758 mag. ) TT 3356.00679 (11.128) 0 c 2001 10 13.85 Diffuse nebula with little strong central condensation. TT 3356.00020 ( 9.758) 8 c 2 TT 3356.00679 (11.128) 2001 10 14.85 Diffuse nebula with little strong central condensation. TT 3356.00020 ( 9.758) 8 c 2 TT 3356.00679 (11.128) 2001 10 15.88 Diffuse nebula with little strong central condensation. TT 3356.00020 ( 9.758) 7 c 3 TT 3356.00679 (11.128) 2001 10 22.79 Diffuse nebula with central condensation. TT 3351.00441 ( 9.068) 8 c 1 TT 3351.00623 (10.115) 2001 11 01.81 Diffuse nebula with little strong central condensation. TT 3337.02043 (8.398) 4 c 2 TT 3337.01725 (9.048) 2001 11 02.75 Diffuse nebula with little strong central condensation. TT 3337.02043 (8.398) 0 c 2001 11 05.78 Diffuse nebula with central condensation. TT 3333.01041 (8.059) 2 c 4 TT 3332.01855 (8.810) 2001 11 05.79 Diffuse nebula with little strong central condensation (diameter of coma 5.4 minutes, DC 4). At position angle 217 degrees the comet have a wide dust tail about 9 minutes long. [ 0.42-m reflector, f/5, x81, observed from Hradec Kralove, Czech Republic, very clear and LM 57, LEH ] 2001 11 09.88 Diffuse nebula with central condensation. TT 2876.00227 (7.805) 2 c 6 TT 3337.02460 (9.055) 2001 11 10.74 Diffuse nebula with central condensation. TT 2876.00227 (7.805) 0 c 2001 11 13.74 Diffuse nebula with central condensation. TT 2870.02713 (6.398) 1 c 3 TT 2870.01220 (6.809) 2001 11 16.74 Diffuse nebula with central condensation. TT 2848.02520 (5.978) 4 c 4 TT 2851.02072 (7.028) 2001 11 18.01 Diffuse nebula with central condensation. TT 2848.02520 (5.978) 3 c 5 TT 2851.02072 (7.028) 2001 11 19.85 Diffuse nebula with central condensation. TT 2848.02520 (5.978) 1 c 7 TT 2851.02072 (7.028) 2001 11 25.72 Diffuse nebula with central condensation. TT 1769.01309 (5.634) 2 c 2 TT 1758.02415 (6.128) c 5 TT 1765.01370 (6.484) 2001 11 30.79 Diffuse nebula with central condensation. TT 0035.00435 (4.594) 5 c 6 TT 0621.00356 (6.385) TT 0034.01287 (4.997) 2 c 2001 12 07.83 Diffuse nebula with little strong central condensation. TT 5269.02450 (4.882) 4 c 1 TT 5272.00121 (5.521) c 3 TT 5847.02334 (5.846) 2001 12 08.79 Diffuse nebula with little strong central condensation (diameter of coma 15 minutes, DC 4). At position angle 45 degrees the comet have a tail about 2.5 degrees long. [ binoculars 25x100, observed from Hradec Kralove, Czech Republic, LM 55, LEH ] 2001 12 08.85 Diffuse nebula with little strong central condensation. TT 5269.02450 (4.882) 3 c 2 TT 5272.00121 (5.521) c 4 TT 5847.02334 (5.846) 2001 12 09.74 Diffuse nebula with little strong central condensation. TT 5269.02450 (4.882) 3 c 2 TT 5272.00121 (5.521) c 4 TT 5847.02334 (5.846) 2001 12 13.74 Diffuse nebula with little strong central condensation. ( Observed about 1.5 degrees above south horizon. ) TT 6988.01337 (4.578) 6 c 2 TT 6418.01217 (5.486) c 4 TT 6990.01103 (5.805) 2002 04 03.11 Diffuse nebula with central condensation. TT 0471.01625 (8.907) 0 c 2002 04 04.10 Diffuse nebula with little strong central condensation. TT 0471.01602 (8.773) 2 c 4 TT 0471.02878 (9.468) 2002 04 08.10 Diffuse nebula with central condensation. TT 1040.01110 (9.143) 2 c 3 TT 1040.00874 (9.718) 2002 05 07.94 Diffuse nebula with central condensation. TI 2100.00476 (11.40) 0 c 4 TI 2100.01142 (11.40) TI 2100.01285 (10.90) 5 c 2002 05 09.89 Diffuse nebula with central condensation. TT 2104.00428 (10.444) 6 c TT 2104.01944 (10.898) 3 c 2002 05 11.91 Diffuse nebula with central condensation. TI 2103.00877 (11.52) 4 c 6 TI 2103.00738 (12.01) TI 2103.01041 (11.08) 0 c 7 TI 2103.00967 (11.77) 2002 05 13.90 Diffuse nebula with central condensation. TI 2608.01734 (11.00) 4 c 0 TI 2608.01249 (11.40) TI 2608.00482 (11.40) 1 c 4 TI 2608.00350 (11.70) 2002 05 15.90 Diffuse nebula with central condensation. TI 2608.00135 (11.40) 4 c 2 TI 2608.01332 (11.90) TI 2608.02346 (11.40) 2 c 2002 05 16.93 Diffuse nebula with central condensation. HS 2608.01275 (11.53) 1 c 1 HS 2608.00023 (12.11) c 4 HS 2608.01014 (12.33) c 5 HS 2608.00090 (12.51) 2002 05 17.92 Diffuse nebula with central condensation. HS 2607.00717 (11.01) 8 c 1 HS 2607.00681 (11.85) c 3 HS 2607.00953 (11.76) c 4 HS 2607.01272 (12.29) 2002 05 18.89 Diffuse nebula with central condensation. TI 2611.01905 (11.70) 2 c 1 TI 2611.01346 (11.90) 2002 06 17.89 Diffuse nebula with central condensation. HS 2588.01586 (11.78) 8 c 9 HS 2588.01455 (13.27) HS 2588.01794 (12.32) 6 c 6 HS 2588.01554 (13.31) c 4 HS 2588.01574 (13.31) 2002 06 18.92 Diffuse nebula with central condensation. HS 2588.01586 (11.78) 8 c 9 HS 2588.01455 (13.27) HS 2588.01794 (12.32) 6 c 6 HS 2588.01554 (13.31) c 4 HS 2588.01574 (13.31) 2002 06 26.88 Diffuse nebula with little strong central condensation. *** Limit 15.5: mag. (x81) *** Second detection YES - 2002 06 26.94 UT HS 2587.01221 (13.19) 3 c 4 HS 2587.01946 (13.44) HS 2587.01780 (13.17) 1 c 9 HS 2587.01429 (13.84) 2002 06 28.90 Diffuse nebula with little strong central condensation. *** Limit 16.0: mag. (x81) *** Second detection YES - 2002 06 29.00 UT HS 2587.01641 (13.53) 1 c 1 HS 2587.01645 (13.95) c 2 HS 2587.01858 (13.88) c 5 HS 2587.00599 (14.26) 2002 06 29.90 Diffuse nebula with little strong central condensation. *** Limit 16: mag. (x81) *** Second detection YES - 2002 06 30.00 UT HS 2587.01785 (12.81) 9 c 7 HS 2587.01420 (14.09) HS 2587.01337 (13.73) 0 c 2 HS 2587.01569 (13.90) 2002 07 08.89 Diffuse nebula with little strong central condensation. *** Limit 16: mag. (x162) *** Second detection YES - 2002 07 08.89 UT HS 2583.02042 (12.83) 10 c 4 HS 2583.01437 (14.14) c 1 HS 2583.02217 (13.85) 2002 07 09.89 Diffuse nebula with little strong central condensation. *** Limit 16: mag. (x162) *** Second detection YES - 2002 07 08.89 UT HS 2583.02042 (12.83) 10 c 4 HS 2583.01437 (14.14) c 1 HS 2583.02217 (13.85) 2002 07 14.90 Diffuse nebula with little strong central condensation. *** Limit 16: mag. (x162) *** Second detection YES - 2002 07 14.98 UT HS 2576.01323 (13.16) 9 c 5 HS 2576.00830 (14.11) HS 2576.01217 (13.42) 4 c 2 HS 2576.01614 (13.70)