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Observation Summary for Variable Star CH UMA

Total observations:13,057Minimum magnitude: 15.889Maximum magnitude: 10.400
First observation:JD 2441619.440000\28 Oct 1972 22:33:36.000000 UTLatest observation:JD 2460610.307000\26 Oct 2024 19:22:04.800000 UT
Observation MethodNumber of Observations
Visual10,056
Photographic1
CCD3,000

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Summary by Stars

Observer IdObserver NameNumber of ObservationsFirst Observation JD / UTLatest Observation JD / UTMinimum MagnitudeMaximum Magnitude
HHI D Howarth1542441619.440000
28 Oct 1972 22:33:36.000000
2443404.400000
17 Sep 1977 21:36:00.000000
14.80010.930
FOA E J Forno42441655.310000
3 Dec 1972 19:26:24.000000
2441704.310000
21 Jan 1973 19:26:24.000000
13.10011.020
SLA M Savill162441656.460000
4 Dec 1972 23:02:24.000000
2441863.470000
29 Jun 1973 23:16:48.000000
14.00011.600
MJJ W Mason312441681.400000
29 Dec 1972 21:36:00.000000
2442307.610000
17 Sep 1974 02:38:24.000000
14.80011.800
MRP A Moore32441681.430000
29 Dec 1972 22:19:12.000000
2441683.360000
31 Dec 1972 20:38:24.000000
11.81011.660
KRD Keir72441682.440000
30 Dec 1972 22:33:36.000000
2441798.360000
25 Apr 1973 20:38:24.000000
13.40011.600
YOP J Young22441703.530000
21 Jan 1973 00:43:12.000000
2441737.590000
24 Feb 1973 02:09:36.000000
14.70014.000
SWD R B Saw2332441727.350000
13 Feb 1973 20:24:00.000000
2444905.410000
27 Oct 1981 21:50:24.000000
14.70010.830
PLW E Pennell422441733.340000
19 Feb 1973 20:09:36.000000
2442361.540000
10 Nov 1974 00:57:36.000000
14.80012.800
KXO J Knox422441735.410000
21 Feb 1973 21:50:24.000000
2442536.400000
3 May 1975 21:36:00.000000
14.40012.670
PTR A H Paterson2,2632441764.520000
23 Mar 1973 00:28:48.000000
2459995.342000
19 Feb 2023 20:12:28.800000
15.23010.400
ASA L Smith32441766.600000
25 Mar 1973 02:24:00.000000
2441904.500000
10 Aug 1973 00:00:00.000000
13.70012.670
DUS R Dunlop42441780.390000
7 Apr 1973 21:21:36.000000
2441951.440000
25 Sep 1973 22:33:36.000000
15.10014.000
HIG P Hawkins222441866.500000
3 Jul 1973 00:00:00.000000
2442047.360000
30 Dec 1973 20:38:24.000000
14.40013.160
BPJ A Bailey872441978.510000
23 Oct 1973 00:14:24.000000
2442873.380000
4 Apr 1976 21:07:12.000000
14.30011.660
HYP W Hornby22442066.500000
19 Jan 1974 00:00:00.000000
2442067.310000
19 Jan 1974 19:26:24.000000
12.77012.540
WSE J W West32442066.510000
19 Jan 1974 00:14:24.000000
2442341.460000
20 Oct 1974 23:02:24.000000
12.81012.500
POA K Porter202442074.600000
27 Jan 1974 02:24:00.000000
2443937.470000
4 Mar 1979 23:16:48.000000
14.00011.800
ADS J Anderson12442312.410000
21 Sep 1974 21:50:24.000000
2442312.410000
21 Sep 1974 21:50:24.000000
13.08013.080
MXL R Matthews82442341.460000
20 Oct 1974 23:02:24.000000
2442596.440000
2 Jul 1975 22:33:36.000000
13.70012.670
MUC R Munford2492442391.460000
9 Dec 1974 23:02:24.000000
2446407.336800
7 Dec 1985 20:04:59.520000
14.50010.730
PIR D Pickard372442864.400000
26 Mar 1976 21:36:00.000000
2447204.416600
12 Feb 1988 21:59:54.240000
15.10010.830
LLR L Lyon1982442976.470000
16 Jul 1976 23:16:48.000000
2444933.480000
24 Nov 1981 23:31:12.000000
15.10011.500
HOA J Hollis282443009.480000
18 Aug 1976 23:31:12.000000
2444581.330000
7 Dec 1980 19:55:12.000000
14.30012.340
GHT Gough82443533.780000
25 Jan 1978 06:43:12.000000
2443839.430000
26 Nov 1978 22:19:12.000000
15.20013.100
LKK Lewis1582443604.390000
5 Apr 1978 21:21:36.000000
2445117.434700
27 May 1982 22:25:58.080000
13.70010.620
HFG M Hurst152443614.480000
15 Apr 1978 23:31:12.000000
2449062.375000
15 Mar 1993 21:00:00.000000
14.00010.800
NRR H Mcnaught42443874.430000
31 Dec 1978 22:19:12.000000
2443929.440000
24 Feb 1979 22:33:36.000000
13.70011.440
KJS J Kay182444146.580000
30 Sep 1979 01:55:12.000000
2444589.560000
16 Dec 1980 01:26:24.000000
14.40013.700
GDM J Gainsford1,1722444225.420000
17 Dec 1979 22:04:48.000000
2456354.388000
2 Mar 2013 21:18:43.200000
14.40010.560
EJJ W L Ells122444292.420000
22 Feb 1980 22:04:48.000000
2445818.420000
27 Apr 1984 22:04:48.000000
13.70012.180
SKJ D Shanklin202444370.490000
10 May 1980 23:45:36.000000
2450655.440900
25 Jul 1997 22:34:53.760000
14.00012.670
GCG A V Coady22444525.670000
13 Oct 1980 04:04:48.000000
2444587.470000
13 Dec 1980 23:16:48.000000
13.46013.160
DTD Stott1,0622444608.340000
3 Jan 1981 20:09:36.000000
2447883.506200
23 Dec 1989 00:08:55.680000
15.30010.730
XEA T A Bueno552444974.819400
5 Jan 1982 07:39:56.160000
2445666.670000
28 Nov 1983 04:04:48.000000
14.30010.500
RQK Robinson32445077.437500
17 Apr 1982 22:30:00.000000
2445087.449300
27 Apr 1982 22:46:59.520000
12.67010.830
OTS Hoste32445101.404100
11 May 1982 21:41:54.240000
2445132.445800
11 Jun 1982 22:41:57.120000
13.10012.670
CHR H Chambers172445398.510000
5 Mar 1983 00:14:24.000000
2447262.454800
10 Apr 1988 22:54:54.720000
13.70012.670
ULS J Lubbock6812445672.510000
4 Dec 1983 00:14:24.000000
2447648.406200
1 May 1989 21:44:55.680000
14.90010.830
AGS W Albrighton1002446107.333300
10 Feb 1985 19:59:57.120000
2458994.476000
24 May 2020 23:25:26.400000
14.60011.500
TJJ Toone292446107.411000
10 Feb 1985 21:51:50.400000
2457169.453000
26 May 2015 22:52:19.200000
15.00010.700
XGG Poyner2,0932447539.562500
13 Jan 1989 01:30:00.000000
2460594.548600
11 Oct 2024 01:09:59.040000
15.46010.700
CPJC P Jones682447624.437500
7 Apr 1989 22:30:00.000000
2452454.409700
28 Jun 2002 21:49:58.080000
15.30010.740
PCLP C Leyland32447677.486100
30 May 1989 23:39:59.040000
2458558.460961
15 Mar 2019 23:03:47.030400
14.82113.100
ISJ E Isles52448049.286800
6 Jun 1990 18:52:59.520000
2448054.277700
11 Jun 1990 18:39:53.280000
12.01011.500
IWW J Worraker1462448193.706900
29 Oct 1990 04:57:56.160000
2451309.452700
10 May 1999 22:51:53.280000
15.40011.230
MIGM Gill442449775.399300
26 Feb 1995 21:34:59.520000
2450334.369400
7 Sep 1996 20:51:56.160000
12.67011.020
WEMM Westlund742450100.190000
17 Jan 1996 16:33:36.000000
2451880.265000
1 Dec 2000 18:21:36.000000
13.30011.600
AKGK G Andersson112450132.306000
18 Feb 1996 19:20:38.400000
2450873.361000
28 Feb 1998 20:39:50.400000
15.20012.800
SALG W Salmon262450213.452000
9 May 1996 22:50:52.800000
2452755.381300
25 Apr 2003 21:09:04.320000
15.02011.340
BHGB H Granslo302450508.580000
1 Mar 1997 01:55:12.000000
2451261.590000
24 Mar 1999 02:09:36.000000
14.00011.200
TUBV Tuboly12450927.388900
23 Apr 1998 21:20:00.960000
2450927.388900
23 Apr 1998 21:20:00.960000
13.50013.500
HWMH W McGee1622451048.459000
22 Aug 1998 23:00:57.600000
2454628.461800
10 Jun 2008 23:04:59.520000
14.90011.260
EMUE Muyllaert1382451188.442000
9 Jan 1999 22:36:28.800000
2451909.752000
31 Dec 2000 06:02:52.800000
14.10010.700
RJBR J Bouma12451659.422000
24 Apr 2000 22:07:40.800000
2451659.422000
24 Apr 2000 22:07:40.800000
11.50011.500
PJCP J Charleton72452503.402800
16 Aug 2002 21:40:01.920000
2453002.543800
29 Dec 2003 01:03:04.320000
14.00012.700
BCPC D Beech242454605.482600
18 May 2008 23:34:56.640000
2455770.431900
27 Jul 2011 22:21:56.160000
15.60014.300
BJB J Beesley2262454588.538200
2 May 2008 00:55:00.480000
2455532.529900
2 Dec 2010 00:43:03.360000
15.40011.500
WVP B Withers1232455331.434000
14 May 2010 22:24:57.600000
2459345.481000
10 May 2021 23:32:38.400000
15.60010.800
MZI Miller3032454011.562824
3 Oct 2006 01:30:27.993600
2458253.458740
14 May 2018 23:00:35.136000
14.87314.231
HULV Hull132456389.578000
7 Apr 2013 01:52:19.200000
2457513.466400
4 May 2016 23:11:36.960000
15.00012.700
MJHNJ H Mallett152457021.343030
29 Dec 2014 20:13:57.792000
2459764.452501
3 Jul 2022 22:51:36.086400
15.30214.781
RPER Pearce932457159.472000
16 May 2015 23:19:40.800000
2460610.307000
26 Oct 2024 19:22:04.800000
15.24810.600
JLM L Joslin282458462.511200
10 Dec 2018 00:16:07.680000
2460441.427500
10 May 2024 22:15:36.000000
15.30013.300
IWTI L Walton132459332.444300
27 Apr 2021 22:39:47.520000
2460309.584970
31 Dec 2023 02:02:21.408000
15.35915.038
SJOS Johnston2,5922459546.377870
27 Nov 2021 21:04:07.968000
2459711.525610
12 May 2022 00:36:52.704000
15.88914.377