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Observation Summary for Variable Star S UMI

Total observations:7,422Minimum magnitude: 13.100Maximum magnitude: 6.600
First observation:JD 2418982.000000\6 Nov 1910 12:00:00.000000 UTLatest observation:JD 2460365.375000\24 Feb 2024 21:00:00.000000 UT
Observation MethodNumber of Observations
Visual7,364
CCD45
CMOS13

Back to Basic Summary

Summary by Stars

Observer IdObserver NameNumber of ObservationsFirst Observation JD / UTLatest Observation JD / UTMinimum MagnitudeMaximum Magnitude
BCC L Brook42418982.000000
6 Nov 1910 12:00:00.000000		2419304.000000
24 Sep 1911 12:00:00.000000		10.9108.560
GHXM E J Gheury422419004.000000
28 Nov 1910 12:00:00.000000		2420274.000000
21 May 1914 12:00:00.000000		12.5008.110
HWE J How1942419004.000000
28 Nov 1910 12:00:00.000000		2426651.000000
5 Nov 1931 12:00:00.000000		11.6007.990
BNA N Brown6742419038.000000
1 Jan 1911 12:00:00.000000		2427694.000000
13 Sep 1934 12:00:00.000000		12.7007.930
BIXE G Bird142419179.000000
22 May 1911 12:00:00.000000		2419282.000000
2 Sep 1911 12:00:00.000000		11.9009.560
CRXF R Cripps142419186.000000
29 May 1911 12:00:00.000000		2420269.000000
16 May 1914 12:00:00.000000		10.8108.910
GIN V Ginori542419373.000000
2 Dec 1911 12:00:00.000000		2419927.000000
8 Jun 1913 12:00:00.000000		11.8008.100
GBLG B Lacchini1202419448.000000
15 Feb 1912 12:00:00.000000		2421212.000000
14 Dec 1916 12:00:00.000000		12.2008.200
BHC F Butterworth1,8262419614.000000
30 Jul 1912 12:00:00.000000		2430077.500000
24 Mar 1941 00:00:00.000000		12.7007.800
BOJ J Bougon1862419915.000000
27 May 1913 12:00:00.000000		2423419.000000
30 Dec 1922 12:00:00.000000		12.3008.070
MKE E Markwick832419973.000000
24 Jul 1913 12:00:00.000000		2424098.000000
8 Nov 1924 12:00:00.000000		11.2408.150
DF De Roy5262420538.000000
9 Feb 1915 12:00:00.000000		2427783.000000
11 Dec 1934 12:00:00.000000		13.1008.030
HTHH Thomson552420652.000000
3 Jun 1915 12:00:00.000000		2422393.000000
9 Mar 1920 12:00:00.000000		12.3008.160
GAW T Gayfer712420758.000000
17 Sep 1915 12:00:00.000000		2434711.400000
29 Nov 1953 21:36:00.000000		12.4008.100
BCXA B Burbeck52420915.000000
21 Feb 1916 12:00:00.000000		2421214.000000
16 Dec 1916 12:00:00.000000		11.3108.600
ABXA Brun822422226.000000
24 Sep 1919 12:00:00.000000		2423014.000000
20 Nov 1921 12:00:00.000000		12.6008.360
LIW M Lindley2212422751.000000
2 Mar 1921 12:00:00.000000		2429407.500000
24 May 1939 00:00:00.000000		12.8008.090
WFHW F H Waterfield1312422839.000000
29 May 1921 12:00:00.000000		2424704.000000
7 Jul 1926 12:00:00.000000		12.6008.160
BLJ Van Der Bilt1732423808.000000
23 Jan 1924 12:00:00.000000		2428522.500000
20 Dec 1936 00:00:00.000000		12.8008.250
WOH Whichello1262424406.000000
12 Sep 1925 12:00:00.000000		2427956.500000
3 Jun 1935 00:00:00.000000		12.8008.400
KUW E Kruytbosch202424526.000000
10 Jan 1926 12:00:00.000000		2425095.000000
2 Aug 1927 12:00:00.000000		12.2008.600
CAR G Chandra932424619.000000
13 Apr 1926 12:00:00.000000		2429621.500000
24 Dec 1939 00:00:00.000000		12.7008.300
HAG P B Hallowes1252425095.000000
2 Aug 1927 12:00:00.000000		2426640.000000
25 Oct 1931 12:00:00.000000		11.6008.100
LHA W Lane-Hall1142425722.000000
20 Apr 1929 12:00:00.000000		2427515.000000
18 Mar 1934 12:00:00.000000		12.7008.260
RWG O Rawstron362427306.000000
21 Aug 1933 12:00:00.000000		2429578.500000
11 Nov 1939 00:00:00.000000		12.8008.300
ZXW M Baxter52427836.500000
3 Feb 1935 00:00:00.000000		2428425.500000
14 Sep 1936 00:00:00.000000		12.3008.730
HVP Harvey1942428019.500000
5 Aug 1935 00:00:00.000000		2429961.700000
28 Nov 1940 04:48:00.000000		12.7007.960
HLF M Holborn3162428530.500000
28 Dec 1936 00:00:00.000000		2436848.400000
6 Oct 1959 21:36:00.000000		12.5007.960
KTN F H Knight582428960.400000
2 Mar 1938 21:36:00.000000		2432179.300000
24 Dec 1946 19:12:00.000000		12.5008.100
AIM A Ainslie172429366.500000
13 Apr 1939 00:00:00.000000		2429644.500000
16 Jan 1940 00:00:00.000000		12.5008.520
KIH C King252430847.500000
3 May 1943 00:00:00.000000		2432185.500000
31 Dec 1946 00:00:00.000000		11.2008.000
BZJ R Bazin862431475.400000
19 Jan 1945 21:36:00.000000		2433352.400000
11 Mar 1950 21:36:00.000000		12.2007.970
SHW L Shepherd972431515.400000
28 Feb 1945 21:36:00.000000		2433919.400000
29 Sep 1951 21:36:00.000000		12.4707.960
ANR G Andrews1282433477.600000
15 Jul 1950 02:24:00.000000		2436924.500000
22 Dec 1959 00:00:00.000000		12.4008.050
FRJ Friends172436418.500000
3 Aug 1958 00:00:00.000000		2439371.500000
3 Sep 1966 00:00:00.000000		11.9008.010
SDJ Shepherd1882436781.400000
31 Jul 1959 21:36:00.000000		2440065.400000
27 Jul 1968 21:36:00.000000		12.5008.020
MNR J Munson362436897.300000
24 Nov 1959 19:12:00.000000		2438387.300000
23 Dec 1963 19:12:00.000000		12.3008.400
CTB A Carter3782437380.600000
22 Mar 1961 02:24:00.000000		2440571.600000
16 Dec 1969 02:24:00.000000		12.8007.960
MEJ Meeus12437588.300000
15 Oct 1961 19:12:00.000000		2437588.300000
15 Oct 1961 19:12:00.000000		11.00011.000
LBC M H Lambert392438036.400000
6 Jan 1963 21:36:00.000000		2439438.400000
8 Nov 1966 21:36:00.000000		11.8008.110
JNR H Jones782438672.600000
4 Oct 1964 02:24:00.000000		2440485.300000
20 Sep 1969 19:12:00.000000		12.0508.200
ZLM N Ball62439602.500000
22 Apr 1967 00:00:00.000000		2439766.400000
2 Oct 1967 21:36:00.000000		10.6908.880
ICT162439737.400000
3 Sep 1967 21:36:00.000000		2440185.300000
24 Nov 1968 19:12:00.000000		11.8008.260
MST J C A Moseley122440086.500000
18 Aug 1968 00:00:00.000000		2440128.600000
29 Sep 1968 02:24:00.000000		11.30010.130
WPP Willett102440437.400000
3 Aug 1969 21:36:00.000000		2440835.400000
5 Sep 1970 21:36:00.000000		12.0507.780
BEL K Brundle152440710.400000
3 May 1970 21:36:00.000000		2441982.300000
26 Oct 1973 19:12:00.000000		12.0507.820
KXO J Knox892440852.600000
23 Sep 1970 02:24:00.000000		2442126.400000
19 Mar 1974 21:36:00.000000		12.3008.200
BUS F Burch1542440912.300000
21 Nov 1970 19:12:00.000000		2442406.300000
24 Dec 1974 19:12:00.000000		12.5007.940
VAD Vest-Askew712440971.400000
19 Jan 1971 21:36:00.000000		2442046.400000
29 Dec 1973 21:36:00.000000		12.0508.050
HYP W Hornby272441005.300000
22 Feb 1971 19:12:00.000000		2442319.400000
28 Sep 1974 21:36:00.000000		12.1007.960
HHI D Howarth22441055.400000
13 Apr 1971 21:36:00.000000		2441099.400000
27 May 1971 21:36:00.000000		11.5009.800
SPG H Spalding302441125.500000
23 Jun 1971 00:00:00.000000		2442047.300000
30 Dec 1973 19:12:00.000000		12.4707.960
YOP J Young772441382.400000
5 Mar 1972 21:36:00.000000		2442047.300000
30 Dec 1973 19:12:00.000000		12.4007.920
BPJ A Bailey12441809.600000
7 May 1973 02:24:00.000000		2441809.600000
7 May 1973 02:24:00.000000		12.00012.000
GXD Griffin562441828.500000
26 May 1973 00:00:00.000000		2442396.600000
15 Dec 1974 02:24:00.000000		12.4208.260
BJB J Beesley322441905.500000
11 Aug 1973 00:00:00.000000		2442323.400000
2 Oct 1974 21:36:00.000000		12.2508.200
SQM Shallis112441967.300000
11 Oct 1973 19:12:00.000000		2442070.300000
22 Jan 1974 19:12:00.000000		10.6108.280
POA K Porter152441972.400000
16 Oct 1973 21:36:00.000000		2442313.400000
22 Sep 1974 21:36:00.000000		12.3008.210
KBK Brady22441975.300000
19 Oct 1973 19:12:00.000000		2441982.300000
26 Oct 1973 19:12:00.000000		8.6008.500
OBS Bottom12442146.400000
8 Apr 1974 21:36:00.000000		2442146.400000
8 Apr 1974 21:36:00.000000		12.30012.300
AKGK G Andersson22450304.493000
8 Aug 1996 23:49:55.200000		2450308.503000
13 Aug 1996 00:04:19.200000		12.50012.500
RJBR J Bouma62450371.400000
14 Oct 1996 21:36:00.000000		2451824.300000
6 Oct 2000 19:12:00.000000		12.2008.500
BHGB H Granslo172450665.440000
4 Aug 1997 22:33:36.000000		2451774.540000
18 Aug 2000 00:57:36.000000		11.9008.100
ARBA R Baransky42450694.400000
2 Sep 1997 21:36:00.000000		2450726.500000
5 Oct 1997 00:00:00.000000		11.10010.300
AXC M Allen32454086.394400
16 Dec 2006 21:27:56.160000		2454700.423600
21 Aug 2008 22:09:59.040000		10.0008.300
-SKG Stefanopoulos12454657.374300
9 Jul 2008 20:58:59.520000		2454657.374300
9 Jul 2008 20:58:59.520000		8.3008.300
MZI Miller12441606.594000
16 Oct 1972 02:15:21.600000		2441606.594000
16 Oct 1972 02:15:21.600000		8.1008.100
AGS W Albrighton512458138.417000
19 Jan 2018 22:00:28.800000		2460365.375000
24 Feb 2024 21:00:00.000000		11.6006.600
GPFG Fleming542458819.287020
1 Dec 2019 18:53:18.528000		2459659.398220
20 Mar 2022 21:33:26.208000		11.0448.131
IWTI L Walton42460114.520600
19 Jun 2023 00:29:39.840000		2460308.671920
30 Dec 2023 04:07:33.888000		10.5049.100