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Observation Summary for Variable Star RV TAU

Total observations:	7,436		Minimum magnitude:	11.470	Maximum magnitude:	8.100
First observation:	JD 2433569.449300	\	14 Oct 1950 22:46:59.520000 UT	Latest observation:	JD 2460625.414580	\	10 Nov 2024 21:56:59.712000 UT

Observation Method	Number of Observations
Visual	7,373
CCD	28
DSLR	13
CMOS	22

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
HL	F M Holborn	197	2433569.449300 14 Oct 1950 22:46:59.520000	2437015.320100 21 Mar 1960 19:40:56.640000	11.470	8.900
SH	W L Shepherd	43	2433617.350600 1 Dec 1950 20:24:51.840000	2434010.295100 29 Dec 1951 19:04:56.640000	10.470	8.900
GR	R F Griffin	140	2434681.416600 30 Oct 1953 21:59:54.240000	2435807.381900 29 Nov 1956 21:09:56.160000	11.050	8.800
LV	R J Livesey	312	2437678.493000 13 Jan 1962 23:49:55.200000	2443172.400000 28 Jan 1977 21:36:00.000000	11.000	8.600
CU	R F Churchhouse	5	2437965.444400 27 Oct 1962 22:39:56.160000	2438132.409700 12 Apr 1963 21:49:58.080000	10.130	9.400
JN	R H Jones	70	2438020.312500 21 Dec 1962 19:30:00.000000	2439953.363100 6 Apr 1968 20:42:51.840000	10.400	8.520
MI	R Middlefell	5	2438287.500000 15 Sep 1963 00:00:00.000000	2438403.541600 9 Jan 1964 00:59:54.240000	10.600	10.000
CT	B A Carter	148	2438342.489500 8 Nov 1963 23:44:52.800000	2440571.522900 16 Dec 1969 00:32:58.560000	10.600	8.600
SF	R C I Shinkfield	28	2438377.010400 13 Dec 1963 12:14:58.560000	2440266.954800 14 Feb 1969 10:54:54.720000	10.900	8.600
LO	R S Lomas	214	2438411.472200 16 Jan 1964 23:19:58.080000	2440219.409700 28 Dec 1968 21:49:58.080000	10.900	9.000
RN	T A Robinson	88	2438779.395800 18 Jan 1965 21:29:57.120000	2452360.329900 26 Mar 2002 19:55:03.360000	11.200	8.200
CQ	G Cowie	85	2439111.340200 16 Dec 1965 20:09:53.280000	2440216.458300 25 Dec 1968 22:59:57.120000	10.810	8.700
SW	D R B Saw	275	2439357.565900 20 Aug 1966 01:34:53.760000	2444905.447900 27 Oct 1981 22:44:58.560000	10.800	8.800
FC	M French	3	2439915.343700 28 Feb 1968 20:14:55.680000	2440158.420100 28 Oct 1968 22:04:56.640000	9.700	8.300
IS	J E Isles	60	2439946.395800 30 Mar 1968 21:29:57.120000	2447852.366600 21 Nov 1989 20:47:54.240000	10.400	8.800
KX	O J Knox	190	2440518.583300 24 Oct 1969 01:59:57.120000	2442720.300000 3 Nov 1975 19:12:00.000000	10.750	8.700
HO	A J Hollis	9	2441269.552000 14 Nov 1971 01:14:52.800000	2443821.400000 8 Nov 1978 21:36:00.000000	10.800	9.500
PT	R A H Paterson	710	2441630.527700 9 Nov 1972 00:39:53.280000	2459995.364000 19 Feb 2023 20:44:09.600000	11.100	8.300
PC	C Pezzarossa	25	2441687.437500 4 Jan 1973 22:30:00.000000	2442045.434000 28 Dec 1973 22:24:57.600000	10.400	9.400
BP	J A Bailey	56	2441723.472200 9 Feb 1973 23:19:58.080000	2442694.500000 9 Oct 1975 00:00:00.000000	10.550	8.500
HY	P W Hornby	4	2442012.361800 25 Nov 1973 20:40:59.520000	2442319.600000 29 Sep 1974 02:24:00.000000	10.150	9.430
MX	L R Matthews	9	2442012.409700 25 Nov 1973 21:49:58.080000	2442647.600000 23 Aug 1975 02:24:00.000000	10.400	8.700
SQ	M Shallis	5	2442018.500000 2 Dec 1973 00:00:00.000000	2442101.400000 22 Feb 1974 21:36:00.000000	10.120	9.740
DI	R Diethelm	13	2442059.400000 11 Jan 1974 21:36:00.000000	2442369.300000 17 Nov 1974 19:12:00.000000	10.700	8.500
LR	K Locher	57	2442062.400000 14 Jan 1974 21:36:00.000000	2442500.300000 28 Mar 1975 19:12:00.000000	10.380	8.460
WS	E J W West	1	2442071.400000 23 Jan 1974 21:36:00.000000	2442071.400000 23 Jan 1974 21:36:00.000000	9.620	9.620
MD	R W Middleton	183	2442077.300000 29 Jan 1974 19:12:00.000000	2454086.313200 16 Dec 2006 19:31:00.480000	10.800	8.700
GX	D Griffin	47	2442088.300000 9 Feb 1974 19:12:00.000000	2443139.500000 27 Dec 1976 00:00:00.000000	10.680	8.830
SU	K Sturdy	18	2442088.400000 9 Feb 1974 21:36:00.000000	2442752.500000 6 Dec 1975 00:00:00.000000	10.100	8.970
GM	R Germann	7	2442095.300000 16 Feb 1974 19:12:00.000000	2442156.300000 18 Apr 1974 19:12:00.000000	10.080	9.090
FO	A E J Forno	4	2442125.300000 18 Mar 1974 19:12:00.000000	2442143.400000 5 Apr 1974 21:36:00.000000	9.630	9.350
RE	N Reid	5	2442125.400000 18 Mar 1974 21:36:00.000000	2442414.300000 1 Jan 1975 19:12:00.000000	9.800	9.200
RT	D A Rothery	8	2442268.600000 9 Aug 1974 02:24:00.000000	2442837.300000 28 Feb 1976 19:12:00.000000	10.050	8.500
BS	T Brelstaff	45	2442277.600000 18 Aug 1974 02:24:00.000000	2443875.400000 1 Jan 1979 21:36:00.000000	10.200	9.100
PO	A K Porter	12	2442277.600000 18 Aug 1974 02:24:00.000000	2442461.300000 17 Feb 1975 19:12:00.000000	10.350	8.650
BT	G K Broadbent	55	2442300.500000 10 Sep 1974 00:00:00.000000	2443112.300000 29 Nov 1976 19:12:00.000000	10.500	8.800
GJ	R J Godden	98	2442308.600000 18 Sep 1974 02:24:00.000000	2445559.606200 13 Aug 1983 02:32:55.680000	10.900	8.520
TY	M D Taylor	5	2442319.600000 29 Sep 1974 02:24:00.000000	2442744.400000 27 Nov 1975 21:36:00.000000	9.550	8.900
LC	D Churchill	8	2442363.300000 11 Nov 1974 19:12:00.000000	2442489.400000 17 Mar 1975 21:36:00.000000	10.000	8.470
KB	K Brady	4	2442363.500000 12 Nov 1974 00:00:00.000000	2442750.400000 3 Dec 1975 21:36:00.000000	9.900	8.900
SP	G H Spalding	23	2442364.400000 12 Nov 1974 21:36:00.000000	2443243.400000 9 Apr 1977 21:36:00.000000	10.600	8.460
PV	H Peter	1	2442367.300000 15 Nov 1974 19:12:00.000000	2442367.300000 15 Nov 1974 19:12:00.000000	10.010	10.010
DC	F D Chesterfield	33	2442370.400000 18 Nov 1974 21:36:00.000000	2443838.300000 25 Nov 1978 19:12:00.000000	10.280	8.860
SS	H W S Smith	9	2442375.500000 24 Nov 1974 00:00:00.000000	2445053.438800 24 Mar 1982 22:31:52.320000	10.300	9.000
OB	S Bottom	2	2442400.400000 18 Dec 1974 21:36:00.000000	2442404.300000 22 Dec 1974 19:12:00.000000	10.100	9.930
WV	P B Withers	31	2442433.500000 21 Jan 1975 00:00:00.000000	2442876.400000 7 Apr 1976 21:36:00.000000	10.150	8.460
MY	A Maudsley	26	2442518.400000 15 Apr 1975 21:36:00.000000	2443230.400000 27 Mar 1977 21:36:00.000000	10.600	8.800
IH	G Hirst	2	2442771.400000 24 Dec 1975 21:36:00.000000	2442801.400000 23 Jan 1976 21:36:00.000000	10.100	10.000
LL	R L Lyon	23	2442802.400000 24 Jan 1976 21:36:00.000000	2443429.400000 12 Oct 1977 21:36:00.000000	10.300	9.000
XC	A Connell	9	2442834.400000 25 Feb 1976 21:36:00.000000	2443096.300000 13 Nov 1976 19:12:00.000000	10.100	9.400
PI	R D Pickard	81	2442839.400000 1 Mar 1976 21:36:00.000000	2447208.390900 16 Feb 1988 21:22:53.760000	10.780	8.700
VB	J S Bullivant	4	2442843.400000 5 Mar 1976 21:36:00.000000	2443137.600000 25 Dec 1976 02:24:00.000000	10.180	9.700
AG	S W Albrighton	21	2443075.400000 23 Oct 1976 21:36:00.000000	2446049.400000 14 Dec 1984 21:36:00.000000	10.700	9.100
GC	G A V Coady	112	2443151.300000 7 Jan 1977 19:12:00.000000	2449717.440900 30 Dec 1994 22:34:53.760000	10.800	8.900
RHF	R B I Fraser	11	2443172.400000 28 Jan 1977 21:36:00.000000	2446143.409700 18 Mar 1985 21:49:58.080000	10.160	8.780
DT	D Stott	621	2443174.400000 30 Jan 1977 21:36:00.000000	2448011.368700 29 Apr 1990 20:50:55.680000	10.900	8.850
PS	P J Swift	1	2443217.400000 14 Mar 1977 21:36:00.000000	2443217.400000 14 Mar 1977 21:36:00.000000	9.800	9.800
GV	A Cosgrove	1	2443403.600000 17 Sep 1977 02:24:00.000000	2443403.600000 17 Sep 1977 02:24:00.000000	9.740	9.740
NR	R H Mcnaught	6	2443476.600000 29 Nov 1977 02:24:00.000000	2443873.400000 30 Dec 1978 21:36:00.000000	10.330	9.450
WH	P J Wheeler	68	2443481.400000 3 Dec 1977 21:36:00.000000	2446138.370800 13 Mar 1985 20:53:57.120000	10.800	8.500
DZ	D J Shepherd	4	2443511.400000 2 Jan 1978 21:36:00.000000	2443597.400000 29 Mar 1978 21:36:00.000000	10.130	9.400
KM	C Brookman	1	2443539.400000 30 Jan 1978 21:36:00.000000	2443539.400000 30 Jan 1978 21:36:00.000000	9.830	9.830
CH	R H Chambers	26	2443550.400000 10 Feb 1978 21:36:00.000000	2447204.430500 12 Feb 1988 22:19:55.200000	10.200	8.700
KS	N S Kiernan	102	2443837.600000 25 Nov 1978 02:24:00.000000	2447377.611100 4 Aug 1988 02:39:59.040000	10.700	8.800
SK	J D Shanklin	81	2444226.500000 19 Dec 1979 00:00:00.000000	2453381.387500 10 Jan 2005 21:18:00.000000	10.750	8.800
XG	G Poyner	28	2444263.400000 24 Jan 1980 21:36:00.000000	2447168.364500 7 Jan 1988 20:44:52.800000	10.800	8.840
EJ	J W L Ells	20	2444303.300000 4 Mar 1980 19:12:00.000000	2445744.400000 13 Feb 1984 21:36:00.000000	10.600	8.700
XF	L J Higgins	11	2444555.500000 12 Nov 1980 00:00:00.000000	2444636.381900 31 Jan 1981 21:09:56.160000	10.500	9.320
RK	J W Rock	16	2444569.400000 25 Nov 1980 21:36:00.000000	2444932.404100 23 Nov 1981 21:41:54.240000	10.400	8.700
QQ	P A Plunkett	1	2444573.600000 30 Nov 1980 02:24:00.000000	2444573.600000 30 Nov 1980 02:24:00.000000	10.320	10.320
KT	N F H Knight	3	2444579.300000 5 Dec 1980 19:12:00.000000	2444599.300000 25 Dec 1980 19:12:00.000000	10.100	9.050
TU	R J Stuart	14	2444634.375000 29 Jan 1981 21:00:00.000000	2445382.400000 16 Feb 1983 21:36:00.000000	10.500	9.400
NZ	I P Nartowicz	11	2444637.416600 1 Feb 1981 21:59:54.240000	2444939.447900 30 Nov 1981 22:44:58.560000	10.050	8.800
LQ	T Laban	16	2444936.284700 27 Nov 1981 18:49:58.080000	2445076.333300 16 Apr 1982 19:59:57.120000	10.000	8.700
NC	M J Nicholls	91	2444974.340200 4 Jan 1982 20:09:53.280000	2448343.336800 27 Mar 1991 20:04:59.520000	10.700	8.520
AX	C M Allen	3	2444979.325000 9 Jan 1982 19:48:00.000000	2455843.384000 8 Oct 2011 21:12:57.600000	9.600	9.150
VS	T G Saville	12	2444982.333300 12 Jan 1982 19:59:57.120000	2445418.400000 24 Mar 1983 21:36:00.000000	10.700	8.970
OT	S Hoste	9	2444985.237500 15 Jan 1982 17:42:00.000000	2445074.338100 14 Apr 1982 20:06:51.840000	9.900	9.000
OZ	D Couzin	17	2445242.461800 29 Sep 1982 23:04:59.520000	2445380.371500 14 Feb 1983 20:54:57.600000	10.330	8.830
OP	E Spooner	1	2445269.520800 27 Oct 1982 00:29:57.120000	2445269.520800 27 Oct 1982 00:29:57.120000	10.100	10.100
QC	H Colquhoun	2	2445354.336800 19 Jan 1983 20:04:59.520000	2445376.409700 10 Feb 1983 21:49:58.080000	10.520	8.780
HB	M A Hather	11	2445615.500000 8 Oct 1983 00:00:00.000000	2445671.418700 2 Dec 1983 22:02:55.680000	10.200	8.700
UL	S J Lubbock	129	2445636.479100 28 Oct 1983 23:29:54.240000	2446887.367300 1 Apr 1987 20:48:54.720000	10.600	8.400
HDI	I Howard-Duff	13	2446050.500000 16 Dec 1984 00:00:00.000000	2446510.343700 20 Mar 1986 20:14:55.680000	10.100	9.000
MM	I A Middlemist	89	2446076.274300 10 Jan 1985 18:34:59.520000	2452623.302100 14 Dec 2002 19:15:01.440000	10.800	8.600
NH	M B Houchen	12	2446118.427000 21 Feb 1985 22:14:52.800000	2446738.375000 3 Nov 1986 21:00:00.000000	10.100	8.480
ZK	M A Brookes	4	2446358.508300 20 Oct 1985 00:11:57.120000	2446429.332600 29 Dec 1985 19:58:56.640000	10.150	9.900
TQ	P Mettam	3	2446826.284700 30 Jan 1987 18:49:58.080000	2446870.334700 15 Mar 1987 20:01:58.080000	10.400	9.500
TJ	J Toone	867	2445051.353000 22 Mar 1982 20:28:19.200000	2460594.449000 10 Oct 2024 22:46:33.600000	11.380	9.100
QRA	G Ramsay	2	2447592.423600 6 Mar 1989 22:09:59.040000	2447614.399300 28 Mar 1989 21:34:59.520000	10.070	9.170
DR	R C Dryden	530	2447856.343700 25 Nov 1989 20:14:55.680000	2460308.299000 29 Dec 2023 19:10:33.600000	11.000	9.000
KOU	S Koushiappas	6	2448541.461800 11 Oct 1991 23:04:59.520000	2448987.339500 30 Dec 1992 20:08:52.800000	10.700	9.400
CHW	C Washington	5	2448644.329800 22 Jan 1992 19:54:54.720000	2448706.333300 24 Mar 1992 19:59:57.120000	10.200	9.350
EA	S J Evans	2	2448953.513800 27 Nov 1992 00:19:52.320000	2448985.538100 29 Dec 1992 00:54:51.840000	10.450	9.340
SAL	G W Salmon	41	2450023.513800 2 Nov 1995 00:19:52.320000	2452991.334700 17 Dec 2003 20:01:58.080000	11.100	8.700
BHG	B H Granslo	11	2450701.550000 10 Sep 1997 01:12:00.000000	2451797.550000 10 Sep 2000 01:12:00.000000	10.400	9.700
GD	M J Gainsford	697	2451875.315200 26 Nov 2000 19:33:53.280000	2458514.375000 30 Jan 2019 21:00:00.000000	11.000	8.500
BJ	B J Beesley	88	2454698.661800 20 Aug 2008 03:52:59.520000	2455531.446500 30 Nov 2010 22:42:57.600000	10.900	8.900
BCP	C D Beech	13	2454837.370800 5 Jan 2009 20:53:57.120000	2455198.406900 1 Jan 2010 21:45:56.160000	9.900	8.700
TVA	T Vale	42	2457347.365000 20 Nov 2015 20:45:36.000000	2460373.423000 3 Mar 2024 22:09:07.200000	10.800	8.100
RPE	R Pearce	15	2457437.503000 19 Feb 2016 00:04:19.200000	2459656.396000 17 Mar 2022 21:30:14.400000	11.000	9.100
IWT	I L Walton	2	2458493.407930 9 Jan 2019 21:47:25.152000	2458493.407930 9 Jan 2019 21:47:25.152000	10.240	10.240
WPS	W Parkes	13	2458511.385760 27 Jan 2019 21:15:29.664000	2460625.414580 10 Nov 2024 21:56:59.712000	10.827	9.147
GPF	G Fleming	35	2458819.269070 1 Dec 2019 18:27:27.648000	2460341.476080 31 Jan 2024 23:25:33.312000	10.384	9.128
KGF	K Griffiths	1	2458029.660000 3 Oct 2017 03:50:24.000000	2458029.660000 3 Oct 2017 03:50:24.000000	9.800	9.800