	British Astronomical Association Supporting amateur astronomers since 1890		Home	Login
			Help

Observation Summary for Variable Star ALPHA ORI

Total observations:	5,772		Minimum magnitude:	1.900	Maximum magnitude:	-0.600
First observation:	JD 2412807.500000	\	10 Dec 1893 00:00:00.000000 UT	Latest observation:	JD 2460423.354170	\	22 Apr 2024 20:30:00.288000 UT

Observation Method	Number of Observations
Visual	5,766
DSLR	6

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
LLY	C Lloyd	98	2458866.354000 17 Jan 2020 20:29:45.600000	2460307.521000 29 Dec 2023 00:30:14.400000	1.600	0.100
AS	A L Smith	3	2440588.284700 1 Jan 1970 18:49:58.080000	2440671.381900 25 Mar 1970 21:09:56.160000	0.700	0.290
BBU	R J Butler	71	2440588.361100 1 Jan 1970 20:39:59.040000	2441073.370100 1 May 1971 20:52:56.640000	0.700	0.360
ED	K J England	17	2440589.250000 2 Jan 1970 18:00:00.000000	2440664.395800 18 Mar 1970 21:29:57.120000	0.900	0.410
FK	M Foulkes	32	2440590.333300 3 Jan 1970 19:59:57.120000	2440704.375000 27 Apr 1970 21:00:00.000000	0.600	0.090
GAM	M Gaskell	7	2440590.462500 3 Jan 1970 23:06:00.000000	2440652.458300 6 Mar 1970 22:59:57.120000	0.650	0.350
IS	J E Isles	267	2439723.663000 21 Aug 1967 03:54:43.200000	2447853.543000 23 Nov 1989 01:01:55.200000	1.180	0.100
CHA	A Chapman	13	2440591.378400 4 Jan 1970 21:04:53.760000	2447242.343700 21 Mar 1988 20:14:55.680000	0.760	0.380
BSU	P G Sutherland	29	2440591.385400 4 Jan 1970 21:14:58.560000	2441634.684000 13 Nov 1972 04:24:57.600000	0.600	0.260
JBW	J B Watler	5	2440591.395800 4 Jan 1970 21:29:57.120000	2440653.322900 7 Mar 1970 19:44:58.560000	0.400	0.300
BIJ	J Birdsall	24	2440592.348600 5 Jan 1970 20:21:59.040000	2440696.370800 19 Apr 1970 20:53:57.120000	0.700	0.400
MRJ	R J Marshall	37	2440593.322900 6 Jan 1970 19:44:58.560000	2441036.381900 25 Mar 1971 21:09:56.160000	0.660	0.200
MAP	P Marsh	10	2440593.354100 6 Jan 1970 20:29:54.240000	2441036.369400 25 Mar 1971 20:51:56.160000	0.500	0.200
EA	S J Evans	9	2440593.465200 6 Jan 1970 23:09:53.280000	2441054.381900 12 Apr 1971 21:09:56.160000	0.660	0.200
ALA	A Alexander	11	2440621.337500 3 Feb 1970 20:06:00.000000	2440689.347200 12 Apr 1970 20:19:58.080000	0.640	0.430
DER	R Dearden	3	2440623.291600 5 Feb 1970 18:59:54.240000	2440940.402700 19 Dec 1970 21:39:53.280000	0.700	0.200
SLD	D Slover	5	2440623.395800 5 Feb 1970 21:29:57.120000	2440628.302000 10 Feb 1970 19:14:52.800000	0.300	0.200
FIJ	J Fish	12	2440642.375000 24 Feb 1970 21:00:00.000000	2440704.375000 27 Apr 1970 21:00:00.000000	0.900	0.360
VJ	J D Wise	13	2440886.464500 26 Oct 1970 23:08:52.800000	2441033.354100 22 Mar 1971 20:29:54.240000	1.200	0.290
UH	A C Hughes	14	2440894.482600 3 Nov 1970 23:34:56.640000	2441026.312500 15 Mar 1971 19:30:00.000000	0.700	0.090
ES	I B Evans	21	2440905.645800 15 Nov 1970 03:29:57.120000	2441069.373600 27 Apr 1971 20:57:59.040000	0.700	0.400
HH	I D Howarth	11	2440917.402700 26 Nov 1970 21:39:53.280000	2440951.510400 31 Dec 1970 00:14:58.560000	1.200	0.600
CP	P R Clayton	29	2440940.310400 19 Dec 1970 19:26:58.560000	2441761.364500 19 Mar 1973 20:44:52.800000	0.700	0.180
HAM	M Harris	10	2440993.295100 10 Feb 1971 19:04:56.640000	2441063.355500 21 Apr 1971 20:31:55.200000	0.800	0.350
WOW	W O Williams	17	2441004.398600 21 Feb 1971 21:33:59.040000	2447204.332600 12 Feb 1988 19:58:56.640000	1.100	0.180
MR	P A Moore	148	2441231.579800 7 Oct 1971 01:54:54.720000	2449717.489500 30 Dec 1994 23:44:52.800000	0.900	0.000
WEL	B Wells	66	2441269.385400 13 Nov 1971 21:14:58.560000	2442152.388800 14 Apr 1974 21:19:52.320000	1.020	0.340
DFC	D F Cranny	18	2441298.416600 12 Dec 1971 21:59:54.240000	2441417.395800 9 Apr 1972 21:29:57.120000	0.700	0.500
HP	M A Hapgood	27	2441300.427000 14 Dec 1971 22:14:52.800000	2441765.409700 23 Mar 1973 21:49:58.080000	1.000	0.260
NR	R H Mcnaught	31	2441549.645800 20 Aug 1972 03:29:57.120000	2441775.359000 2 Apr 1973 20:36:57.600000	1.000	0.290
GT	G T Buss	20	2441632.486100 10 Nov 1972 23:39:59.040000	2441778.444400 5 Apr 1973 22:39:56.160000	0.800	0.200
ON	N M Bone	29	2441654.427000 2 Dec 1972 22:14:52.800000	2443960.875000 28 Mar 1979 09:00:00.000000	0.620	0.300
SL	A M Savill	20	2441684.364500 1 Jan 1973 20:44:52.800000	2441771.385400 29 Mar 1973 21:14:58.560000	0.630	0.400
GJO	J Green	17	2441684.458300 1 Jan 1973 22:59:57.120000	2441779.354100 6 Apr 1973 20:29:54.240000	0.800	0.480
WJ	J M Webb	9	2441698.375000 15 Jan 1973 21:00:00.000000	2441736.375000 22 Feb 1973 21:00:00.000000	0.420	0.220
HC	C Henshaw	29	2441713.404100 30 Jan 1973 21:41:54.240000	2451617.200000 13 Mar 2000 16:48:00.000000	0.860	0.220
GZ	F Gribbin	8	2441723.385400 9 Feb 1973 21:14:58.560000	2441790.385400 17 Apr 1973 21:14:58.560000	1.000	0.220
MJ	J W Mason	3	2441735.392300 21 Feb 1973 21:24:54.720000	2441779.420100 6 Apr 1973 22:04:56.640000	0.630	0.530
AO	S K Abrol	32	2441763.406200 21 Mar 1973 21:44:55.680000	2442144.305500 6 Apr 1974 19:19:55.200000	0.900	0.440
OC	H R Cole	3	2442101.400000 22 Feb 1974 21:36:00.000000	2442411.500000 30 Dec 1974 00:00:00.000000	0.710	0.620
GE	A Gardner	2	2442106.380500 27 Feb 1974 21:07:55.200000	2442133.312500 26 Mar 1974 19:30:00.000000	1.140	0.450
BS	T Brelstaff	58	2442415.392300 2 Jan 1975 21:24:54.720000	2448546.693700 17 Oct 1991 04:38:55.680000	0.920	0.260
NOS	N Stein	5	2442427.370100 14 Jan 1975 20:52:56.640000	2442772.416600 25 Dec 1975 21:59:54.240000	0.580	0.360
QS	C Swan	19	2442687.743000 2 Oct 1975 05:49:55.200000	2442776.320800 29 Dec 1975 19:41:57.120000	0.800	0.180
BAY	M Bailey	9	2442873.333300 4 Apr 1976 19:59:57.120000	2443138.333300 25 Dec 1976 19:59:57.120000	0.510	0.060
WN	G Winstanley	2	2443075.687500 24 Oct 1976 04:30:00.000000	2443134.444400 21 Dec 1976 22:39:56.160000	0.520	0.330
MJD	M J D Price	9	2443146.350600 2 Jan 1977 20:24:51.840000	2443239.343700 5 Apr 1977 20:14:55.680000	0.600	0.460
QM	T Markham	469	2443890.396000 16 Jan 1979 21:30:14.400000	2457483.326000 4 Apr 2016 19:49:26.400000	1.000	0.300
TJE	T J E Palmer	142	2444581.479100 7 Dec 1980 23:29:54.240000	2446880.372200 25 Mar 1987 20:55:58.080000	1.050	0.100
DOW	O Dale	19	2444651.375000 15 Feb 1981 21:00:00.000000	2444931.422200 22 Nov 1981 22:07:58.080000	0.900	0.200
AV	J E Agar	48	2444984.301300 14 Jan 1982 19:13:52.320000	2445806.353400 15 Apr 1984 20:28:53.760000	0.680	0.240
TY	M D Taylor	346	2445010.447900 9 Feb 1982 22:44:58.560000	2457089.383000 7 Mar 2015 21:11:31.200000	0.900	0.060
TN	A J Thomson	9	2445049.406900 20 Mar 1982 21:45:56.160000	2445638.597200 31 Oct 1983 02:19:58.080000	0.800	0.660
MAR	D Martin	11	2445341.499300 6 Jan 1983 23:58:59.520000	2445434.386100 9 Apr 1983 21:15:59.040000	1.080	0.280
DH	H G Duncan	201	2445679.450600 10 Dec 1983 22:48:51.840000	2448986.406900 29 Dec 1992 21:45:56.160000	1.100	0.250
POG	G Pointer	209	2445705.345100 5 Jan 1984 20:16:56.640000	2450705.677700 14 Sep 1997 04:15:53.280000	1.000	0.220
JEN	S Jenner	23	2445729.395800 29 Jan 1984 21:29:57.120000	2450867.344400 22 Feb 1998 20:15:56.160000	0.940	0.140
GER	R J Geddes	94	2446162.384700 6 Apr 1985 21:13:58.080000	2446930.390900 14 May 1987 21:22:53.760000	0.870	0.180
-TY	N Taylor	58	2446351.475600 12 Oct 1985 23:24:51.840000	2446796.352000 31 Dec 1986 20:26:52.800000	0.900	0.280
REY	M Reynolds	14	2446437.410400 6 Jan 1986 21:50:58.560000	2446549.377000 28 Apr 1986 21:02:52.800000	0.760	0.560
SMA	A Smeaton	32	2446841.285400 14 Feb 1987 18:50:58.560000	2448684.305500 2 Mar 1992 19:19:55.200000	1.150	0.470
AX	C M Allen	8	2446842.353400 15 Feb 1987 20:28:53.760000	2446902.371500 16 Apr 1987 20:54:57.600000	0.600	0.500
MRB	M Robinson	15	2447065.597200 27 Sep 1987 02:19:58.080000	2447264.354100 12 Apr 1988 20:29:54.240000	0.560	0.200
PEK	J Peck	7	2447097.538800 29 Oct 1987 00:55:52.320000	2447454.500000 20 Oct 1988 00:00:00.000000	0.600	0.200
TID	D Tidbury	20	2447181.429100 20 Jan 1988 22:17:54.240000	2447284.427000 2 May 1988 22:14:52.800000	0.920	0.620
KYX	K Xylaris	12	2447264.246500 12 Apr 1988 17:54:57.600000	2447584.211800 26 Feb 1989 17:04:59.520000	0.850	0.090
MGS	M G Savage	1	2447473.576300 8 Nov 1988 01:49:52.320000	2447473.576300 8 Nov 1988 01:49:52.320000	0.600	0.600
LGR	L Green	42	2447476.500000 11 Nov 1988 00:00:00.000000	2451541.326300 28 Dec 1999 19:49:52.320000	0.950	0.340
MCD	D Mckain	8	2447596.350600 10 Mar 1989 20:24:51.840000	2447616.336100 30 Mar 1989 20:03:59.040000	0.800	0.700
LVR	R Livingstone	16	2447853.427700 22 Nov 1989 22:15:53.280000	2448294.349300 6 Feb 1991 20:22:59.520000	1.000	0.160
GOD	S Godwin	147	2448134.625000 31 Aug 1990 03:00:00.000000	2451525.566600 13 Dec 1999 01:35:54.240000	1.120	0.000
BAN	N Bailey	2	2448231.379800 5 Dec 1990 21:06:54.720000	2448250.375600 24 Dec 1990 21:00:51.840000	1.000	0.900
PAN	C Panayiotides	6	2448533.420100 3 Oct 1991 22:04:56.640000	2448616.277700 25 Dec 1991 18:39:53.280000	0.470	0.180
CLM	M Clarke	132	2448668.347200 15 Feb 1992 20:19:58.080000	2451541.315900 28 Dec 1999 19:34:53.760000	0.800	0.090
BAR	M Barrett	40	2448677.338800 24 Feb 1992 20:07:52.320000	2450858.472900 13 Feb 1998 23:20:58.560000	1.000	0.100
EHH	E H Horsley	38	2448943.496500 16 Nov 1992 23:54:57.600000	2451463.673600 12 Oct 1999 04:09:59.040000	0.900	0.270
GIF	G Thompson	4	2449002.288100 14 Jan 1993 18:54:51.840000	2449088.409700 10 Apr 1993 21:49:58.080000	0.950	0.760
FAM	F Hamilton	25	2449005.375000 17 Jan 1993 21:00:00.000000	2449810.350600 2 Apr 1995 20:24:51.840000	0.680	0.380
RL	R Billington	28	2449010.413100 22 Jan 1993 21:54:51.840000	2449469.364500 26 Apr 1994 20:44:52.800000	1.220	0.180
DAR	K Darbyshire	32	2449397.406200 13 Feb 1994 21:44:55.680000	2451501.659000 19 Nov 1999 03:48:57.600000	0.800	0.300
BAK	K Barnwell	1	2450135.350600 21 Feb 1996 20:24:51.840000	2450135.350600 21 Feb 1996 20:24:51.840000	0.700	0.700
SK	J D Shanklin	1	2450375.687500 19 Oct 1996 04:30:00.000000	2450375.687500 19 Oct 1996 04:30:00.000000	0.400	0.400
BHG	B H Granslo	14	2450510.310000 2 Mar 1997 19:26:24.000000	2451766.730000 10 Aug 2000 05:31:12.000000	0.700	0.600
-SK	G Stefanopoulos	128	2452011.253500 11 Apr 2001 18:05:02.400000	2458579.251000 5 Apr 2019 18:01:26.400000	1.200	0.000
TML	T Miles	8	2451880.395800 1 Dec 2000 21:29:57.120000	2452275.500000 1 Jan 2002 00:00:00.000000	1.100	0.500
JMP	J De Morae Pereira	28	2412807.500000 10 Dec 1893 00:00:00.000000	2413566.500000 8 Jan 1896 00:00:00.000000	1.000	0.400
GD	M J Gainsford	108	2454421.434000 16 Nov 2007 22:24:57.600000	2459215.444000 31 Dec 2020 22:39:21.600000	1.900	0.000
RWS	R W Schmude	18	2449720.618700 3 Jan 1995 02:50:55.680000	2449817.000000 9 Apr 1995 12:00:00.000000	1.000	0.500
DSC	D Scanlan	82	2453688.463000 13 Nov 2005 23:06:43.200000	2458214.375000 5 Apr 2018 21:00:00.000000	1.500	0.000
KID	M K Kidger	169	2457389.448000 1 Jan 2016 22:45:07.200000	2459322.319000 17 Apr 2021 19:39:21.600000	1.800	0.100
TLH	T L Heywood	94	2457630.632000 30 Aug 2016 03:10:04.800000	2460232.625000 15 Oct 2023 03:00:00.000000	1.500	0.300
BES	W E Besley	21	2415026.500000 7 Jan 1900 00:00:00.000000	2416122.500000 8 Jan 1903 00:00:00.000000	0.900	0.300
MK	E E Markwick	115	2414679.500000 25 Jan 1899 00:00:00.000000	2417541.500000 27 Nov 1906 00:00:00.000000	1.200	0.200
MIX	G W Middleton	3	2415045.500000 26 Jan 1900 00:00:00.000000	2415047.500000 28 Jan 1900 00:00:00.000000	0.900	0.900
OA	W Oakes	51	2415097.500000 19 Mar 1900 00:00:00.000000	2416882.500000 6 Feb 1905 00:00:00.000000	1.000	0.300
ORR	M A Orr	32	2415043.500000 24 Jan 1900 00:00:00.000000	2417223.500000 13 Jan 1906 00:00:00.000000	1.200	-0.600
WLX	W M Worsell	51	2415056.500000 6 Feb 1900 00:00:00.000000	2417312.500000 12 Apr 1906 00:00:00.000000	0.900	0.200
BC	C L Brook	21	2416052.500000 30 Oct 1902 00:00:00.000000	2417537.500000 23 Nov 1906 00:00:00.000000	1.000	0.300
CHJ	J W L Child	90	2415754.500000 5 Jan 1902 00:00:00.000000	2416557.500000 18 Mar 1904 00:00:00.000000	0.800	0.300
XK	A King	338	2415753.500000 4 Jan 1902 00:00:00.000000	2426798.319000 31 Mar 1932 19:39:21.600000	1.000	0.000
LEB	O A Lebeau	14	2415753.500000 4 Jan 1902 00:00:00.000000	2416089.500000 6 Dec 1902 00:00:00.000000	0.800	0.300
XXX		1	2416057.500000 4 Nov 1902 00:00:00.000000	2416057.500000 4 Nov 1902 00:00:00.000000	0.300	0.300
PEX	J M Peridier	4	2416055.500000 2 Nov 1902 00:00:00.000000	2416058.500000 5 Nov 1902 00:00:00.000000	0.800	0.500
COR	H Corder	1	2416137.500000 23 Jan 1903 00:00:00.000000	2416137.500000 23 Jan 1903 00:00:00.000000	0.300	0.300
KN	M D Kirkman	2	2416819.500000 5 Dec 1904 00:00:00.000000	2416820.500000 6 Dec 1904 00:00:00.000000	0.800	0.700
BDX	J T Bird	5	2417291.500000 22 Mar 1906 00:00:00.000000	2417312.500000 12 Apr 1906 00:00:00.000000	0.800	0.500
D	F De Roy	16	2417477.500000 24 Sep 1906 00:00:00.000000	2417571.500000 27 Dec 1906 00:00:00.000000	0.900	0.400
RY	P M Ryves	38	2417144.500000 26 Oct 1905 00:00:00.000000	2417563.500000 19 Dec 1906 00:00:00.000000	0.600	0.300
INN	R T A Innes	11	2416148.500000 3 Feb 1903 00:00:00.000000	2416742.500000 19 Sep 1904 00:00:00.000000	1.000	0.100
MIT	A E Mitchell	116	2416854.500000 9 Jan 1905 00:00:00.000000	2417575.500000 31 Dec 1906 00:00:00.000000	1.100	0.400
PKR	D E Packer	44	2416037.500000 15 Oct 1902 00:00:00.000000	2416189.500000 16 Mar 1903 00:00:00.000000	0.400	-0.300
PMU	P Mulligan	2	2458161.313000 11 Feb 2018 19:30:43.200000	2458167.375000 17 Feb 2018 21:00:00.000000	0.300	0.300
TVA	T Vale	4	2458852.410000 3 Jan 2020 21:50:24.000000	2458907.422000 27 Feb 2020 22:07:40.800000	1.600	1.300
XG	G Poyner	73	2458864.556000 16 Jan 2020 01:20:38.400000	2460373.540300 4 Mar 2024 00:58:01.920000	1.700	0.300
TP	J Thorpe	10	2458849.542000 1 Jan 2020 01:00:28.800000	2460397.356000 27 Mar 2024 20:32:38.400000	1.700	0.700
WPS	W Parkes	6	2458879.430900 30 Jan 2020 22:20:29.760000	2459237.333680 22 Jan 2021 20:00:29.952000	1.632	0.628
JJT	T Jones	4	2458924.408330 15 Mar 2020 21:47:59.712000	2460399.348610 29 Mar 2024 20:21:59.904000	1.200	0.300
AG	S W Albrighton	89	2458511.326000 27 Jan 2019 19:49:26.400000	2460410.378000 9 Apr 2024 21:04:19.200000	1.700	0.100
TJ	J Toone	12	2444881.672000 4 Oct 1981 04:07:40.800000	2459197.476000 13 Dec 2020 23:25:26.400000	1.800	1.000
MQ	R Mckay	1	2458848.354170 30 Dec 2019 20:30:00.288000	2458848.354170 30 Dec 2019 20:30:00.288000	1.400	1.400
RKH	R K Hunt	136	2458851.326300 2 Jan 2020 19:49:52.320000	2460371.334700 1 Mar 2024 20:01:58.080000	1.700	0.600
BE	L K Brundle	81	2458915.292000 6 Mar 2020 19:00:28.800000	2460399.327000 29 Mar 2024 19:50:52.800000	1.600	0.500
RJM	R J McKim	10	2458868.410000 19 Jan 2020 21:50:24.000000	2458931.323000 22 Mar 2020 19:45:07.200000	1.900	1.100
SFY	J Shears	7	2459176.493000 22 Nov 2020 23:49:55.200000	2460050.354000 15 Apr 2023 20:29:45.600000	0.800	0.500
RHF	R B I Fraser	8	2442411.283000 29 Dec 1974 18:47:31.200000	2442869.391000 31 Mar 1976 21:23:02.400000	0.800	0.400
HF	G M Hurst	34	2459258.314000 12 Feb 2021 19:32:09.600000	2459671.412000 1 Apr 2022 21:53:16.800000	0.800	0.200
JES	C J Evans	7	2459521.765000 3 Nov 2021 06:21:36.000000	2459899.771000 16 Nov 2022 06:30:14.400000	0.600	0.200
JCH	J Hilder	73	2459933.468750 19 Dec 2022 23:15:00.000000	2460423.354170 22 Apr 2024 20:30:00.288000	0.600	0.300