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Observation Summary for Variable Star BU TAU

Total observations:	6,256		Minimum magnitude:	6.740	Maximum magnitude:	4.200
First observation:	JD 2439854.300000	\	29 Dec 1967 19:12:00.000000 UT	Latest observation:	JD 2460610.419000	\	26 Oct 2024 22:03:21.600000 UT

Observation Method	Number of Observations
Visual	6,251
CCD	5

Back to Basic Summary

Summary by Stars

Observer Id	Observer Name	Number of Observations	First Observation JD / UT	Latest Observation JD / UT	Minimum Magnitude	Maximum Magnitude
IS	J E Isles	46	2440246.344000 24 Jan 1969 20:15:21.600000	2447452.273600 17 Oct 1988 18:33:59.040000	5.460	4.700
ED	K J England	23	2440956.400000 4 Jan 1971 21:36:00.000000	2441554.600000 25 Aug 1972 02:24:00.000000	5.760	5.350
JJ	C J Jackson	3	2440956.400000 4 Jan 1971 21:36:00.000000	2440977.300000 25 Jan 1971 19:12:00.000000	5.360	5.260
HH	I D Howarth	6	2440962.400000 10 Jan 1971 21:36:00.000000	2441161.600000 29 Jul 1971 02:24:00.000000	5.260	4.880
AS	A L Smith	9	2440962.400000 10 Jan 1971 21:36:00.000000	2441245.400000 20 Oct 1971 21:36:00.000000	6.070	5.550
HC	C Henshaw	64	2440963.400000 11 Jan 1971 21:36:00.000000	2451808.500000 21 Sep 2000 00:00:00.000000	5.910	5.050
NO	D J Northwood	18	2440963.400000 11 Jan 1971 21:36:00.000000	2441279.300000 23 Nov 1971 19:12:00.000000	5.550	5.090
UP	D A Pickup	7	2440971.300000 19 Jan 1971 19:12:00.000000	2441068.400000 26 Apr 1971 21:36:00.000000	5.100	4.910
HP	M A Hapgood	1	2440971.400000 19 Jan 1971 21:36:00.000000	2440971.400000 19 Jan 1971 21:36:00.000000	5.150	5.150
RD	D W Robinson	21	2440983.300000 31 Jan 1971 19:12:00.000000	2441285.600000 30 Nov 1971 02:24:00.000000	5.250	5.050
EG	S V England	1	2440983.400000 31 Jan 1971 21:36:00.000000	2440983.400000 31 Jan 1971 21:36:00.000000	5.560	5.560
CP	P R Clayton	10	2440987.300000 4 Feb 1971 19:12:00.000000	2441568.600000 8 Sep 1972 02:24:00.000000	5.600	5.040
GH	T Gough	2	2440994.300000 11 Feb 1971 19:12:00.000000	2441061.400000 19 Apr 1971 21:36:00.000000	5.260	5.200
VJ	J D Wise	10	2440996.300000 13 Feb 1971 19:12:00.000000	2441239.400000 14 Oct 1971 21:36:00.000000	5.930	5.350
HJ	P J Harpur	4	2440996.500000 14 Feb 1971 00:00:00.000000	2441337.500000 21 Jan 1972 00:00:00.000000	5.260	4.980
FM	V J Freeman	5	2441001.300000 18 Feb 1971 19:12:00.000000	2441361.400000 13 Feb 1972 21:36:00.000000	5.550	5.240
BX	A Brown	6	2441001.400000 18 Feb 1971 21:36:00.000000	2441313.500000 28 Dec 1971 00:00:00.000000	5.600	5.100
AB	N R Baker	6	2441179.500000 16 Aug 1971 00:00:00.000000	2441337.300000 20 Jan 1972 19:12:00.000000	5.350	5.050
QA	P Quadt	24	2441187.700000 24 Aug 1971 04:48:00.000000	2441654.600000 3 Dec 1972 02:24:00.000000	5.400	5.100
YP	P Yates	3	2441193.400000 29 Aug 1971 21:36:00.000000	2441251.400000 26 Oct 1971 21:36:00.000000	5.460	5.360
BI	J Bingham	6	2441193.500000 30 Aug 1971 00:00:00.000000	2441308.300000 22 Dec 1971 19:12:00.000000	5.360	5.250
HS	P J Harris	1	2441226.400000 1 Oct 1971 21:36:00.000000	2441226.400000 1 Oct 1971 21:36:00.000000	5.500	5.500
BL	J Van Der Bilt	2	2441242.400000 17 Oct 1971 21:36:00.000000	2441248.400000 23 Oct 1971 21:36:00.000000	5.250	5.150
GE	A Gardner	33	2441252.500000 28 Oct 1971 00:00:00.000000	2445621.430500 13 Oct 1983 22:19:55.200000	5.760	5.000
HF	G M Hurst	1,147	2441274.300000 18 Nov 1971 19:12:00.000000	2459666.364000 27 Mar 2022 20:44:09.600000	5.800	4.860
PM	M Poxon	27	2441297.300000 11 Dec 1971 19:12:00.000000	2441655.300000 3 Dec 1972 19:12:00.000000	5.750	5.160
MU	C R Munford	2	2441550.500000 21 Aug 1972 00:00:00.000000	2441550.600000 21 Aug 1972 02:24:00.000000	5.500	5.400
HY	P W Hornby	4	2441562.500000 2 Sep 1972 00:00:00.000000	2441682.300000 30 Dec 1972 19:12:00.000000	5.700	5.550
JB	B Jobson	7	2441568.400000 7 Sep 1972 21:36:00.000000	2441675.500000 24 Dec 1972 00:00:00.000000	5.760	5.260
MM	I A Middlemist	61	2441594.400000 3 Oct 1972 21:36:00.000000	2451520.336800 7 Dec 1999 20:04:59.520000	5.850	5.450
WA	E Waring	8	2441595.400000 4 Oct 1972 21:36:00.000000	2441682.300000 30 Dec 1972 19:12:00.000000	5.650	5.450
RHF	R B I Fraser	376	2443832.512000 20 Nov 1978 00:17:16.800000	2448218.458000 22 Nov 1990 22:59:31.200000	5.800	5.000
TY	M D Taylor	674	2444614.511100 10 Jan 1981 00:15:59.040000	2457092.311000 10 Mar 2015 19:27:50.400000	5.800	5.250
NZ	I P Nartowicz	96	2444884.350600 6 Oct 1981 20:24:51.840000	2450020.666600 30 Oct 1995 03:59:54.240000	5.600	4.880
RL	R Billington	42	2444895.340900 17 Oct 1981 20:10:53.760000	2449715.505500 29 Dec 1994 00:07:55.200000	5.890	5.000
QC	H Colquhoun	7	2444914.569400 6 Nov 1981 01:39:56.160000	2445050.500000 22 Mar 1982 00:00:00.000000	6.170	5.200
YM	M R Bell	11	2444974.334000 4 Jan 1982 20:00:57.600000	2445215.668000 3 Sep 1982 04:01:55.200000	5.680	5.230
AX	C M Allen	8	2444980.262500 10 Jan 1982 18:18:00.000000	2445072.370100 12 Apr 1982 20:52:56.640000	5.500	5.300
QM	T Markham	817	2444080.545000 26 Jul 1979 01:04:48.000000	2457496.361000 17 Apr 2016 20:39:50.400000	5.600	5.260
VS	T G Saville	24	2445239.423600 26 Sep 1982 22:09:59.040000	2445436.388800 11 Apr 1983 21:19:52.320000	5.400	5.250
AG	S W Albrighton	162	2445336.298600 1 Jan 1983 19:09:59.040000	2457428.396000 9 Feb 2016 21:30:14.400000	5.600	4.880
IN	G B Chaplin	13	2445703.746500 4 Jan 1984 05:54:57.600000	2446029.343700 24 Nov 1984 20:14:55.680000	5.550	5.160
IW	W J Worraker	13	2445743.444400 12 Feb 1984 22:39:56.160000	2446008.462500 3 Nov 1984 23:06:00.000000	5.430	4.880
GRN	R N Goodger	5	2446069.488800 3 Jan 1985 23:43:52.320000	2446428.392300 28 Dec 1985 21:24:54.720000	5.570	5.530
DH	H G Duncan	66	2446088.420100 22 Jan 1985 22:04:56.640000	2448240.342300 14 Dec 1990 20:12:54.720000	5.660	5.160
DS	D M Swain	136	2446114.314500 17 Feb 1985 19:32:52.800000	2447503.293700 7 Dec 1988 19:02:55.680000	5.530	5.160
PON	P O'Neill	16	2446314.423600 5 Sep 1985 22:09:59.040000	2446761.269400 26 Nov 1986 18:27:56.160000	5.560	4.690
ON	N M Bone	92	2446361.468700 22 Oct 1985 23:14:55.680000	2448687.465200 5 Mar 1992 23:09:53.280000	6.630	5.740
RAK	R A Kendall	42	2446429.336800 29 Dec 1985 20:04:59.520000	2447142.315900 12 Dec 1987 19:34:53.760000	5.700	4.880
POG	G Pointer	55	2446445.368000 14 Jan 1986 20:49:55.200000	2450076.387500 24 Dec 1995 21:18:00.000000	5.800	4.830
UT	A Hutchings	48	2446483.327000 21 Feb 1986 19:50:52.800000	2446903.357600 17 Apr 1987 20:34:56.640000	5.610	4.880
SMA	A Smeaton	50	2446522.385400 1 Apr 1986 21:14:58.560000	2448686.326300 4 Mar 1992 19:49:52.320000	5.230	5.080
HU	D Hufton	5	2446657.452700 14 Aug 1986 22:51:53.280000	2446727.316600 23 Oct 1986 19:35:54.240000	5.650	5.450
LV	R J Livesey	636	2446686.423600 12 Sep 1986 22:09:59.040000	2457838.340000 25 Mar 2017 20:09:36.000000	5.400	4.880
GAV	D Gavine	65	2446711.458300 7 Oct 1986 22:59:57.120000	2449780.406200 3 Mar 1995 21:44:55.680000	5.460	5.200
ARE	A R Edwards	3	2446715.422200 11 Oct 1986 22:07:58.080000	2446760.275000 25 Nov 1986 18:36:00.000000	6.740	5.030
GER	R J Geddes	4	2446847.389500 20 Feb 1987 21:20:52.800000	2446896.379100 10 Apr 1987 21:05:54.240000	5.600	5.500
MV	J W Macvey	106	2447012.583300 5 Aug 1987 01:59:57.120000	2447862.281200 1 Dec 1989 18:44:55.680000	5.460	4.770
MJD	M J D Price	1	2447044.496500 5 Sep 1987 23:54:57.600000	2447044.496500 5 Sep 1987 23:54:57.600000	5.450	5.450
QRA	G Ramsay	67	2447171.395800 10 Jan 1988 21:29:57.120000	2449247.451300 16 Sep 1993 22:49:52.320000	5.660	5.160
KYX	K Xylaris	149	2447183.180500 22 Jan 1988 16:19:55.200000	2449091.220800 13 Apr 1993 17:17:57.120000	5.650	4.810
FRW	R W Fleet	9	2447380.560400 7 Aug 1988 01:26:58.560000	2448250.431200 24 Dec 1990 22:20:55.680000	5.230	5.170
KS	N S Kiernan	39	2447412.606200 8 Sep 1988 02:32:55.680000	2448203.315900 7 Nov 1990 19:34:53.760000	5.650	5.080
KUC	A Kucinskas	18	2447438.274300 3 Oct 1988 18:34:59.520000	2447508.274300 12 Dec 1988 18:34:59.520000	5.500	5.000
KPM	K P Marshall	8	2447441.424300 6 Oct 1988 22:10:59.520000	2447512.434000 16 Dec 1988 22:24:57.600000	5.230	4.770
KOU	S Koushiappas	8	2447528.138800 1 Jan 1989 15:19:52.320000	2448587.224300 26 Nov 1991 17:22:59.520000	5.550	5.160
WEK	K West	1	2447953.345100 2 Mar 1990 20:16:56.640000	2447953.345100 2 Mar 1990 20:16:56.640000	4.600	4.600
BEA	S Beaumont	26	2448514.500000 15 Sep 1991 00:00:00.000000	2448984.437500 27 Dec 1992 22:30:00.000000	5.460	4.270
SEL	S Elliott	1	2448572.437500 11 Nov 1991 22:30:00.000000	2448572.437500 11 Nov 1991 22:30:00.000000	4.690	4.690
UN	B R M Munden	65	2448581.388800 20 Nov 1991 21:19:52.320000	2453002.281900 28 Dec 2003 18:45:56.160000	5.700	5.070
MIG	M Gill	8	2448666.416600 13 Feb 1992 21:59:54.240000	2449935.625600 6 Aug 1995 03:00:51.840000	5.160	4.540
EYU	E Yusuf	12	2448919.414500 23 Oct 1992 21:56:52.800000	2453087.305600 22 Mar 2004 19:20:03.840000	5.450	5.100
SGR	S G Ridley	22	2448946.315200 19 Nov 1992 19:33:53.280000	2449453.400000 10 Apr 1994 21:36:00.000000	5.150	5.050
RAM	R A Marriott	4	2449058.309000 11 Mar 1993 19:24:57.600000	2449073.383300 26 Mar 1993 21:11:57.120000	5.080	4.880
STW	S T Wanstall	65	2449277.392300 16 Oct 1993 21:24:54.720000	2449467.360400 24 Apr 1994 20:38:58.560000	5.500	4.300
BSC	B S Crawford	36	2449326.280500 4 Dec 1993 18:43:55.200000	2450080.552000 29 Dec 1995 01:14:52.800000	5.170	4.880
NBR	N Britton	6	2449344.270100 22 Dec 1993 18:28:56.640000	2449458.381200 15 Apr 1994 21:08:55.680000	6.310	4.690
BHG	B H Granslo	39	2450510.300000 2 Mar 1997 19:12:00.000000	2451766.730000 10 Aug 2000 05:31:12.000000	5.300	5.100
FAD	M Fadda	4	2451609.286100 5 Mar 2000 18:51:59.040000	2451839.298600 21 Oct 2000 19:09:59.040000	4.860	4.780
PJC	P J Charleton	2	2451618.340200 14 Mar 2000 20:09:53.280000	2451625.340200 21 Mar 2000 20:09:53.280000	5.200	5.200
-SK	G Stefanopoulos	51	2454055.342400 15 Nov 2006 20:13:03.360000	2456619.350000 22 Nov 2013 20:24:00.000000	6.400	5.500
RAF	R Braga	3	2455199.312500 2 Jan 2010 19:30:00.000000	2455540.266000 9 Dec 2010 18:23:02.400000	5.600	5.400
BMB	B MacDonald	1	2456013.371500 26 Mar 2012 20:54:57.600000	2456013.371500 26 Mar 2012 20:54:57.600000	5.100	5.100
MZ	I Miller	5	2442428.538000 16 Jan 1975 00:54:43.200000	2442457.476000 13 Feb 1975 23:25:26.400000	5.500	5.400
BAR	M Barrett	51	2456681.476000 23 Jan 2014 23:25:26.400000	2460534.556000 12 Aug 2024 01:20:38.400000	5.800	4.500
DSC	D Scanlan	62	2454496.315000 30 Jan 2008 19:33:36.000000	2458215.388000 6 Apr 2018 21:18:43.200000	6.200	4.800
JJT	T Jones	2	2457021.459720 29 Dec 2014 23:01:59.808000	2458924.402780 15 Mar 2020 21:40:00.192000	5.460	4.880
RPE	R Pearce	53	2457395.431000 7 Jan 2016 22:20:38.400000	2460610.419000 26 Oct 2024 22:03:21.600000	5.800	4.900
TLH	T L Heywood	136	2457588.583000 19 Jul 2016 01:59:31.200000	2460232.354000 14 Oct 2023 20:29:45.600000	5.600	5.400
PMU	P Mulligan	19	2457721.354000 28 Nov 2016 20:29:45.600000	2458864.305000 15 Jan 2020 19:19:12.000000	5.500	5.200
BMU	J Muirden	5	2439854.300000 29 Dec 1967 19:12:00.000000	2439942.400000 26 Mar 1968 21:36:00.000000	5.400	5.000
RKH	R K Hunt	127	2459124.361800 1 Oct 2020 20:40:59.520000	2460610.360400 26 Oct 2024 20:38:58.560000	5.800	5.000
HJD	H J Davies	8	2446519.362000 29 Mar 1986 20:41:16.800000	2459110.396000 17 Sep 2020 21:30:14.400000	5.600	4.200
JES	C J Evans	4	2459877.736000 25 Oct 2022 05:39:50.400000	2459922.517000 9 Dec 2022 00:24:28.800000	5.600	5.300