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British Astronomical Association Supporting amateur astronomers since 1890 |
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Total observations: | 10,006 | Minimum magnitude: | 14.600 | Maximum magnitude: | 6.800 | ||
First observation: | JD 2420145.500000 | \ | 13 Jan 1914 00:00:00.000000 UT | Latest observation: | JD 2460519.672000 | \ | 28 Jul 2024 04:07:40.800000 UT |
Observation Method | Number of Observations |
---|---|
Visual | 9,903 |
Photographic | 41 |
CCD | 41 |
CMOS | 21 |
Observer Id | Observer Name | Number of Observations | First Observation JD / UT | Latest Observation JD / UT | Minimum Magnitude | Maximum Magnitude |
---|---|---|---|---|---|---|
BH | C F Butterworth | 1,143 | 2421721.000000 7 May 1918 12:00:00.000000 | 2430039.300000 13 Feb 1941 19:12:00.000000 | 13.400 | 7.160 |
BC | C L Brook | 19 | 2421724.000000 10 May 1918 12:00:00.000000 | 2423673.000000 10 Sep 1923 12:00:00.000000 | 13.100 | 7.670 |
D | F De Roy | 326 | 2422087.000000 8 May 1919 12:00:00.000000 | 2427779.000000 7 Dec 1934 12:00:00.000000 | 13.700 | 8.100 |
BN | A N Brown | 284 | 2422119.000000 9 Jun 1919 12:00:00.000000 | 2427690.000000 9 Sep 1934 12:00:00.000000 | 13.300 | 7.270 |
HTH | H Thomson | 6 | 2422332.000000 8 Jan 1920 12:00:00.000000 | 2422491.000000 15 Jun 1920 12:00:00.000000 | 13.200 | 8.700 |
MG | G Merton | 21 | 2422509.000000 3 Jul 1920 12:00:00.000000 | 2422787.000000 7 Apr 1921 12:00:00.000000 | 12.340 | 8.600 |
GI | N V Ginori | 36 | 2422529.000000 23 Jul 1920 12:00:00.000000 | 2423593.000000 22 Jun 1923 12:00:00.000000 | 10.750 | 7.690 |
CA | R G Chandra | 80 | 2422695.000000 5 Jan 1921 12:00:00.000000 | 2429626.300000 28 Dec 1939 19:12:00.000000 | 13.220 | 8.350 |
WFH | W F H Waterfield | 99 | 2423223.000000 17 Jun 1922 12:00:00.000000 | 2424704.000000 7 Jul 1926 12:00:00.000000 | 11.850 | 7.980 |
LI | W M Lindley | 144 | 2423434.000000 14 Jan 1923 12:00:00.000000 | 2429488.400000 12 Aug 1939 21:36:00.000000 | 13.700 | 7.050 |
PH | T E R Phillips | 34 | 2423637.000000 5 Aug 1923 12:00:00.000000 | 2425456.000000 28 Jul 1928 12:00:00.000000 | 12.900 | 8.500 |
BL | J Van Der Bilt | 76 | 2423812.000000 27 Jan 1924 12:00:00.000000 | 2427706.000000 25 Sep 1934 12:00:00.000000 | 12.300 | 7.360 |
HA | G P B Hallowes | 287 | 2423995.000000 28 Jul 1924 12:00:00.000000 | 2426639.000000 24 Oct 1931 12:00:00.000000 | 13.400 | 7.820 |
WB | H Webber | 131 | 2424126.000000 6 Dec 1924 12:00:00.000000 | 2427803.000000 31 Dec 1934 12:00:00.000000 | 13.100 | 7.050 |
ST | G E B Stephenson | 209 | 2424371.000000 8 Aug 1925 12:00:00.000000 | 2425947.000000 1 Dec 1929 12:00:00.000000 | 13.100 | 8.800 |
SV | W H Steavenson | 111 | 2424429.000000 5 Oct 1925 12:00:00.000000 | 2427453.000000 15 Jan 1934 12:00:00.000000 | 13.900 | 8.500 |
EDX | L F Edwards | 11 | 2425124.000000 31 Aug 1927 12:00:00.000000 | 2425955.000000 9 Dec 1929 12:00:00.000000 | 13.450 | 9.970 |
SH | W L Shepherd | 143 | 2425243.000000 28 Dec 1927 12:00:00.000000 | 2433943.400000 23 Oct 1951 21:36:00.000000 | 13.300 | 8.400 |
LH | A W Lane-Hall | 82 | 2425732.000000 30 Apr 1929 12:00:00.000000 | 2427515.000000 18 Mar 1934 12:00:00.000000 | 13.400 | 9.700 |
SN | W Strachan | 101 | 2425983.000000 6 Jan 1930 12:00:00.000000 | 2427740.000000 29 Oct 1934 12:00:00.000000 | 13.300 | 8.960 |
LM | G P Lishman | 46 | 2427271.000000 17 Jul 1933 12:00:00.000000 | 2427801.000000 29 Dec 1934 12:00:00.000000 | 13.300 | 9.800 |
SA | F Sargent | 18 | 2427488.000000 19 Feb 1934 12:00:00.000000 | 2427781.000000 9 Dec 1934 12:00:00.000000 | 13.000 | 9.600 |
FY | R M Fry | 19 | 2427600.000000 11 Jun 1934 12:00:00.000000 | 2427799.000000 27 Dec 1934 12:00:00.000000 | 13.220 | 8.890 |
KT | N F H Knight | 8 | 2429265.300000 1 Jan 1939 19:12:00.000000 | 2429375.600000 22 Apr 1939 02:24:00.000000 | 12.180 | 10.660 |
UG | R F T Granger | 28 | 2429266.300000 2 Jan 1939 19:12:00.000000 | 2432172.300000 17 Dec 1946 19:12:00.000000 | 14.000 | 9.120 |
BZ | J R Bazin | 235 | 2429267.300000 3 Jan 1939 19:12:00.000000 | 2433996.300000 15 Dec 1951 19:12:00.000000 | 13.400 | 7.850 |
CX | H W Cox | 204 | 2429269.400000 5 Jan 1939 21:36:00.000000 | 2432183.300000 28 Dec 1946 19:12:00.000000 | 13.700 | 7.930 |
HL | F M Holborn | 258 | 2429275.300000 11 Jan 1939 19:12:00.000000 | 2436970.300000 5 Feb 1960 19:12:00.000000 | 14.370 | 8.580 |
CO | E H Collinson | 48 | 2429752.500000 3 May 1940 00:00:00.000000 | 2433621.400000 5 Dec 1950 21:36:00.000000 | 13.600 | 8.080 |
KN | M D Kirkman | 12 | 2429819.500000 9 Jul 1940 00:00:00.000000 | 2429879.400000 6 Sep 1940 21:36:00.000000 | 11.920 | 10.300 |
TC | G D R Tucker | 19 | 2430513.600000 3 Jun 1942 02:24:00.000000 | 2430698.300000 4 Dec 1942 19:12:00.000000 | 13.050 | 10.140 |
WL | H Wildey | 12 | 2431591.400000 15 May 1945 21:36:00.000000 | 2432830.400000 5 Oct 1948 21:36:00.000000 | 13.700 | 9.830 |
AN | R G Andrews | 129 | 2433463.600000 1 Jul 1950 02:24:00.000000 | 2436921.400000 18 Dec 1959 21:36:00.000000 | 14.600 | 7.670 |
FR | J Friends | 27 | 2434224.500000 31 Jul 1952 00:00:00.000000 | 2439439.400000 9 Nov 1966 21:36:00.000000 | 13.000 | 9.380 |
MU | C R Munford | 244 | 2436479.400000 2 Oct 1958 21:36:00.000000 | 2446407.281200 7 Dec 1985 18:44:55.680000 | 13.300 | 8.400 |
GL | J S Glasby | 13 | 2437241.500000 3 Nov 1960 00:00:00.000000 | 2437299.300000 30 Dec 1960 19:12:00.000000 | 9.280 | 8.780 |
QW | P F Waldron | 17 | 2437290.300000 21 Dec 1960 19:12:00.000000 | 2438020.300000 21 Dec 1962 19:12:00.000000 | 12.400 | 9.270 |
LV | R J Livesey | 108 | 2437678.500000 14 Jan 1962 00:00:00.000000 | 2438755.300000 25 Dec 1964 19:12:00.000000 | 13.000 | 8.400 |
CT | B A Carter | 309 | 2437681.800000 17 Jan 1962 07:12:00.000000 | 2440578.200000 22 Dec 1969 16:48:00.000000 | 13.700 | 8.760 |
BR | D G Brown | 41 | 2438411.300000 16 Jan 1964 19:12:00.000000 | 2439480.400000 20 Dec 1966 21:36:00.000000 | 11.700 | 8.700 |
LO | R S Lomas | 144 | 2438636.500000 29 Aug 1964 00:00:00.000000 | 2440219.400000 28 Dec 1968 21:36:00.000000 | 12.400 | 10.140 |
IA | 21 | 2439742.400000 8 Sep 1967 21:36:00.000000 | 2440185.300000 24 Nov 1968 19:12:00.000000 | 13.500 | 9.480 | |
PT | R A H Paterson | 404 | 2440414.500000 12 Jul 1969 00:00:00.000000 | 2459940.290000 26 Dec 2022 18:57:36.000000 | 14.000 | 8.400 |
SP | G H Spalding | 14 | 2441145.500000 13 Jul 1971 00:00:00.000000 | 2441278.300000 22 Nov 1971 19:12:00.000000 | 12.180 | 9.980 |
XG | G Poyner | 62 | 2444608.301300 3 Jan 1981 19:13:52.320000 | 2447437.375000 2 Oct 1988 21:00:00.000000 | 13.900 | 8.140 |
EJ | J W L Ells | 29 | 2444608.393000 3 Jan 1981 21:25:55.200000 | 2445723.300000 23 Jan 1984 19:12:00.000000 | 12.240 | 7.880 |
GD | M J Gainsford | 881 | 2444609.277700 4 Jan 1981 18:39:53.280000 | 2457721.351000 28 Nov 2016 20:25:26.400000 | 13.900 | 8.200 |
AG | S W Albrighton | 125 | 2444609.284700 4 Jan 1981 18:49:58.080000 | 2459943.257000 29 Dec 2022 18:10:04.800000 | 13.500 | 7.830 |
GC | G A V Coady | 29 | 2444614.333300 9 Jan 1981 19:59:57.120000 | 2449690.239500 3 Dec 1994 17:44:52.800000 | 13.200 | 9.410 |
WH | P J Wheeler | 143 | 2444614.343700 9 Jan 1981 20:14:55.680000 | 2447861.259000 30 Nov 1989 18:12:57.600000 | 13.000 | 8.300 |
LK | K Lewis | 45 | 2444614.352700 9 Jan 1981 20:27:53.280000 | 2445304.254800 30 Nov 1982 18:06:54.720000 | 12.860 | 7.880 |
DT | D Stott | 462 | 2444614.402000 9 Jan 1981 21:38:52.800000 | 2448038.405500 26 May 1990 21:43:55.200000 | 14.050 | 8.180 |
PI | R D Pickard | 27 | 2444616.300000 11 Jan 1981 19:12:00.000000 | 2451465.406200 13 Oct 1999 21:44:55.680000 | 12.280 | 8.090 |
WV | P B Withers | 98 | 2443429.378000 12 Oct 1977 21:04:19.200000 | 2445707.336000 7 Jan 1984 20:03:50.400000 | 14.000 | 7.980 |
KJ | S J Kay | 7 | 2444679.680500 16 Mar 1981 04:19:55.200000 | 2444777.527700 22 Jun 1981 00:39:53.280000 | 12.300 | 9.920 |
FF | H Feijth | 12 | 2444727.500000 3 May 1981 00:00:00.000000 | 2444943.400000 4 Dec 1981 21:36:00.000000 | 12.050 | 8.870 |
CH | R H Chambers | 31 | 2444751.503400 27 May 1981 00:04:53.760000 | 2447361.427000 18 Jul 1988 22:14:52.800000 | 13.000 | 9.480 |
RK | J W Rock | 15 | 2444762.438800 6 Jun 1981 22:31:52.320000 | 2444951.248600 12 Dec 1981 17:57:59.040000 | 9.920 | 7.980 |
OT | S Hoste | 16 | 2444873.377700 25 Sep 1981 21:03:53.280000 | 2446001.342300 27 Oct 1984 20:12:54.720000 | 13.300 | 8.200 |
QC | H Colquhoun | 4 | 2445169.500000 19 Jul 1982 00:00:00.000000 | 2445195.500000 14 Aug 1982 00:00:00.000000 | 11.280 | 10.450 |
OW | J J Howarth | 195 | 2445220.385400 7 Sep 1982 21:14:58.560000 | 2448324.515200 9 Mar 1991 00:21:53.280000 | 13.000 | 9.130 |
JR | J Parkinson | 2 | 2445230.406200 17 Sep 1982 21:44:55.680000 | 2445266.437500 23 Oct 1982 22:30:00.000000 | 9.700 | 9.480 |
KB | K Brady | 8 | 2445548.400000 1 Aug 1983 21:36:00.000000 | 2445699.300000 30 Dec 1983 19:12:00.000000 | 14.200 | 8.900 |
KV | A Kimber | 18 | 2446259.439500 12 Jul 1985 22:32:52.800000 | 2447068.393000 29 Sep 1987 21:25:55.200000 | 13.000 | 9.050 |
MM | I A Middlemist | 15 | 2446434.277700 3 Jan 1986 18:39:53.280000 | 2447502.277700 6 Dec 1988 18:39:53.280000 | 13.200 | 9.920 |
KH | I H Kennedy | 14 | 2446635.440900 23 Jul 1986 22:34:53.760000 | 2446786.291600 21 Dec 1986 18:59:54.240000 | 12.940 | 9.880 |
IS | J E Isles | 60 | 2446887.563800 2 Apr 1987 01:31:52.320000 | 2447847.256900 16 Nov 1989 18:09:56.160000 | 13.700 | 9.480 |
TJ | J Toone | 1,197 | 2444900.339000 22 Oct 1981 20:08:09.600000 | 2460519.672000 28 Jul 2024 04:07:40.800000 | 13.970 | 8.400 |
EJD | E G D Youngs | 3 | 2447435.318000 30 Sep 1988 19:37:55.200000 | 2447817.315900 17 Oct 1989 19:34:53.760000 | 13.700 | 9.480 |
CPJ | C P Jones | 5 | 2447757.502000 19 Aug 1989 00:02:52.800000 | 2448038.491600 26 May 1990 23:47:54.240000 | 13.500 | 9.850 |
DR | R C Dryden | 556 | 2447761.397900 22 Aug 1989 21:32:58.560000 | 2460298.294000 19 Dec 2023 19:03:21.600000 | 13.600 | 8.400 |
CHW | C Washington | 31 | 2448572.368000 11 Nov 1991 20:49:55.200000 | 2449706.260400 19 Dec 1994 18:14:58.560000 | 13.000 | 9.270 |
MIG | M Gill | 47 | 2448716.659700 4 Apr 1992 03:49:58.080000 | 2450281.487500 16 Jul 1996 23:42:00.000000 | 12.400 | 9.480 |
RJB | R J Bouma | 1 | 2450373.400000 16 Oct 1996 21:36:00.000000 | 2450373.400000 16 Oct 1996 21:36:00.000000 | 10.000 | 10.000 |
SAL | G W Salmon | 15 | 2452510.374300 23 Aug 2002 20:58:59.520000 | 2452983.347900 9 Dec 2003 20:20:58.560000 | 12.100 | 9.000 |
HF | G M Hurst | 1 | 2454086.352800 16 Dec 2006 20:28:01.920000 | 2454086.352800 16 Dec 2006 20:28:01.920000 | 9.000 | 9.000 |
AX | C M Allen | 9 | 2454796.344400 25 Nov 2008 20:15:56.160000 | 2456151.448600 11 Aug 2012 22:45:59.040000 | 12.500 | 8.000 |
BJ | B J Beesley | 48 | 2454638.473600 20 Jun 2008 23:21:59.040000 | 2455516.406900 15 Nov 2010 21:45:56.160000 | 11.200 | 7.500 |
BCP | C D Beech | 13 | 2455085.348600 10 Sep 2009 20:21:59.040000 | 2455193.334700 27 Dec 2009 20:01:58.080000 | 9.500 | 9.200 |
HUL | V Hull | 3 | 2456542.587000 7 Sep 2013 02:05:16.800000 | 2457271.583000 6 Sep 2015 01:59:31.200000 | 12.100 | 10.500 |
XXX | 2 | 2420145.500000 13 Jan 1914 00:00:00.000000 | 2420365.500000 21 Aug 1914 00:00:00.000000 | 13.800 | 6.800 | |
GPF | G Fleming | 48 | 2458784.339150 27 Oct 2019 20:08:22.560000 | 2460233.354330 15 Oct 2023 20:30:14.112000 | 10.953 | 8.337 |
RHF | R B I Fraser | 8 | 2443469.427000 21 Nov 1977 22:14:52.800000 | 2443996.477000 2 May 1979 23:26:52.800000 | 12.400 | 9.400 |