Observation Summary for BI CYG

Total observations:4,087Minimum magnitude: 10.800Maximum magnitude: 8.300
First observation:JD 2441470.492300\1 Jun 1972 23:48:55 UTLatest observation:JD 2458410.374000\18 Oct 2018 20:58:34 UT
Observation MethodNumber of Observations
Photographic27
Visual4,060

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Summary by Stars

Observer IdObserver NameNumber of ObservationsFirst Observation JD / UTLatest Observation JD / UTMinimum MagnitudeMaximum Magnitude
AGS W Albrighton862443062.365200
10 Oct 1976 20:45:53
2457410.278000
22 Jan 2016 18:40:19
10.3009.270
AXC M Allen42444932.355500
23 Nov 1981 20:31:55
2444982.257600
12 Jan 1982 18:10:57
10.2009.980
BEL K Brundle1,3302443328.456900
3 Jul 1977 22:57:56
2458296.422000
26 Jun 2018 22:07:41
10.5009.220
BJB J Beesley462454591.611100
5 May 2008 02:39:59
2455516.370800
15 Nov 2010 20:53:57
10.0009.100
BPJ A Bailey542441990.312500
3 Nov 1973 19:30:00
2442792.252000
14 Jan 1976 18:02:53
10.3009.090
BST Brelstaff512442178.461800
10 May 1974 23:05:00
2442817.694400
9 Feb 1976 04:39:56
10.5009.240
CHR H Chambers192445670.800000
2 Dec 1983 07:12:00
2447367.552000
25 Jul 1988 01:14:53
10.4009.350
CMM Currie22445724.500000
25 Jan 1984 00:00:00
2445911.500000
30 Jul 1984 00:00:00
10.30010.200
CPJC P Jones92447303.534700
22 May 1988 00:49:58
2447482.361100
16 Nov 1988 20:39:59
9.6208.970
DRR C Dryden1012454766.347200
26 Oct 2008 20:19:58
2458099.281000
11 Dec 2017 18:44:38
10.2009.600
DTD Stott3912445884.500000
3 Jul 1984 00:00:00
2448038.390200
26 May 1990 21:21:53
10.3009.190
EJJ W L Ells142445321.288800
17 Dec 1982 18:55:52
2445715.200000
15 Jan 1984 16:48:00
9.7608.950
FAMF Hamilton112449630.375600
4 Oct 1994 21:00:52
2450039.315200
17 Nov 1995 19:33:53
9.7809.090
FPP M Filbey62443367.402000
11 Aug 1977 21:38:53
2443415.334000
28 Sep 1977 20:00:58
9.6009.300
GCG A V Coady402443290.433300
26 May 1977 22:23:57
2444369.460400
9 May 1980 23:02:59
10.0209.530
GHT Gough152443516.354100
7 Jan 1978 20:29:54
2443951.599300
19 Mar 1979 02:23:00
10.0509.620
GJR J Godden1152442249.454100
20 Jul 1974 22:53:54
2445549.600000
3 Aug 1983 02:24:00
10.3009.030
GVA Cosgrove52443291.572900
28 May 1977 01:44:59
2443404.460400
17 Sep 1977 23:02:59
9.8009.570
GXD Griffin542442363.298600
11 Nov 1974 19:09:59
2443141.302000
28 Dec 1976 19:14:53
10.0309.350
HFG M Hurst262443716.438800
26 Jul 1978 22:31:52
2444351.583300
22 Apr 1980 01:59:57
10.0509.230
HHI D Howarth12441470.492300
1 Jun 1972 23:48:55
2441470.492300
1 Jun 1972 23:48:55
9.9009.900
HOA J Hollis92443429.350600
12 Oct 1977 20:24:52
2444581.409700
7 Dec 1980 21:49:58
9.9008.910
HULV Hull12456550.499000
14 Sep 2013 23:58:34
2456550.499000
14 Sep 2013 23:58:34
9.5009.500
HYP W Hornby22442003.386100
16 Nov 1973 21:15:59
2442309.556200
19 Sep 1974 01:20:56
10.4009.790
IHG Hirst452442536.503400
4 May 1975 00:04:54
2445699.300000
30 Dec 1983 19:12:00
10.0208.930
ISJ E Isles412446593.585400
12 Jun 1986 02:02:59
2447853.239500
22 Nov 1989 17:44:53
10.4009.140
KDB Kennedy12443006.447900
15 Aug 1976 22:44:59
2443006.447900
15 Aug 1976 22:44:59
9.2309.230
KGG J Kirby142442956.506900
27 Jun 1976 00:09:56
2443389.402700
2 Sep 1977 21:39:53
10.2009.720
KXO J Knox2172441539.458300
9 Aug 1972 22:59:57
2442744.270800
27 Nov 1975 18:29:57
10.2008.970
MDR W Middleton812442235.434000
6 Jul 1974 22:24:58
2448597.327000
6 Dec 1991 19:50:53
10.2008.950
MMI A Middlemist2492442212.479100
13 Jun 1974 23:29:54
2452623.295100
14 Dec 2002 19:04:57
10.5009.250
MTE Metson82445964.400000
20 Sep 1984 21:36:00
2446066.200000
31 Dec 1984 16:48:00
9.9009.530
MXL R Matthews332442246.541600
18 Jul 1974 00:59:54
2443151.263800
7 Jan 1977 18:19:52
10.2009.350
MYA Maudsley492442249.547900
21 Jul 1974 01:08:59
2443165.262500
21 Jan 1977 18:18:00
10.0009.480
NCM J Nicholls1692445222.444400
9 Sep 1982 22:39:56
2448537.315900
7 Oct 1991 19:34:54
10.8009.290
PBM Peel162442572.447900
8 Jun 1975 22:44:59
2443424.468700
7 Oct 1977 23:14:56
9.9509.350
PCC Pezzarossa22441884.361100
20 Jul 1973 20:39:59
2441886.375000
22 Jul 1973 21:00:00
9.3509.350
PIR D Pickard42445618.400000
10 Oct 1983 21:36:00
2445704.300000
4 Jan 1984 19:12:00
9.9009.620
PMM Poxon72442628.504800
4 Aug 1975 00:06:55
2442762.263100
15 Dec 1975 18:18:52
9.9009.080
POA K Porter22442427.315900
14 Jan 1975 19:34:54
2442444.293000
31 Jan 1975 19:01:55
9.9609.920
PSP J Swift22443354.468700
29 Jul 1977 23:14:56
2443482.304800
4 Dec 1977 19:18:55
10.0009.680
QMT Markham62447030.410000
22 Aug 1987 21:50:24
2456710.726000
22 Feb 2014 05:25:26
9.4309.240
RBJ H Robinson12443093.319400
10 Nov 1976 19:39:56
2443093.319400
10 Nov 1976 19:39:56
9.9609.960
REKR E Kelly22449588.396500
23 Aug 1994 21:30:58
2449618.379800
22 Sep 1994 21:06:55
9.4209.190
RHFR B I Fraser182443145.284700
1 Jan 1977 18:49:58
2448216.447900
20 Nov 1990 22:44:59
10.1409.240
RPER Pearce182457219.434000
15 Jul 2015 22:24:58
2458410.374000
18 Oct 2018 20:58:34
10.2008.300
SSH W S Smith792442174.520800
7 May 1974 00:29:57
2445506.500000
21 Jun 1983 00:00:00
10.3009.270
TIHT Hoare52451702.455500
6 Jun 2000 22:55:55
2451777.499300
20 Aug 2000 23:59:00
9.4409.180
TQP Mettam452446071.246500
5 Jan 1985 17:54:58
2447157.292300
27 Dec 1987 19:00:55
9.9009.530
TTT Tanti92445869.400000
17 Jun 1984 21:36:00
2446669.305500
26 Aug 1986 19:19:55
10.6009.720
TYM D Taylor242441575.375000
14 Sep 1972 21:00:00
2443861.297200
18 Dec 1978 19:07:58
10.1009.110
VBJ S Bullivant162442967.486100
7 Jul 1976 23:39:59
2443143.232600
30 Dec 1976 17:34:57
9.7209.460
VST G Saville72445192.388800
10 Aug 1982 21:19:52
2445293.399300
19 Nov 1982 21:35:00
10.1009.620
WHP J Wheeler1482443652.484000
23 May 1978 23:36:58
2446588.447200
6 Jun 1986 22:43:58
10.4509.190
WVP B Withers2742442571.530500
8 Jun 1975 00:43:55
2458292.483000
22 Jun 2018 23:35:31
10.6009.000
XBP L Baxter232442617.409700
23 Jul 1975 21:49:58
2442771.291600
24 Dec 1975 18:59:54
10.0309.680
XGG Poyner632444513.475000
30 Sep 1980 23:24:00
2447057.388800
18 Sep 1987 21:19:52
10.0509.250
YGD L Young22442725.475600
8 Nov 1975 23:24:52
2442778.338800
31 Dec 1975 20:07:52
9.7609.720
YMM R Bell152444115.409700
29 Aug 1979 21:49:58
2444615.293700
10 Jan 1981 19:02:56
10.2009.560