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British Astronomical Association Supporting amateur astronomers since 1890 |
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Total observations: | 11,637 | Minimum magnitude: | 14.070 | Maximum magnitude: | 6.120 | ||
First observation: | JD 2399423.500000 | \ | 19 Apr 1857 00:00:00.000000 UT | Latest observation: | JD 2460538.407640 | \ | 15 Aug 2024 21:47:00.096000 UT |
Observation Method | Number of Observations |
---|---|
Visual | 11,479 |
CCD | 81 |
DSLR | 68 |
CMOS | 9 |
Observer Id | Observer Name | Number of Observations | First Observation JD / UT | Latest Observation JD / UT | Minimum Magnitude | Maximum Magnitude |
---|---|---|---|---|---|---|
MK | E E Markwick | 366 | 2411803.500000 12 Mar 1891 00:00:00.000000 | 2424016.000000 18 Aug 1924 12:00:00.000000 | 13.420 | 6.300 |
JMP | J De Morae Pereira | 47 | 2412298.500000 19 Jul 1892 00:00:00.000000 | 2413542.500000 15 Dec 1895 00:00:00.000000 | 12.700 | 7.100 |
MIX | G W Middleton | 2 | 2415111.000000 1 Apr 1900 12:00:00.000000 | 2415159.000000 19 May 1900 12:00:00.000000 | 9.760 | 7.410 |
KEX | J Kelly | 10 | 2415129.000000 19 Apr 1900 12:00:00.000000 | 2415172.000000 1 Jun 1900 12:00:00.000000 | 7.940 | 7.260 |
CHJ | J W L Child | 90 | 2415147.000000 7 May 1900 12:00:00.000000 | 2416086.000000 2 Dec 1902 12:00:00.000000 | 13.520 | 6.120 |
ORR | M A Orr | 1 | 2415494.000000 19 Apr 1901 12:00:00.000000 | 2415494.000000 19 Apr 1901 12:00:00.000000 | 7.940 | 7.940 |
PEX | J M Peridier | 2 | 2415604.000000 7 Aug 1901 12:00:00.000000 | 2415605.000000 8 Aug 1901 12:00:00.000000 | 12.550 | 12.550 |
LEB | O A Lebeau | 4 | 2415754.000000 4 Jan 1902 12:00:00.000000 | 2415769.000000 19 Jan 1902 12:00:00.000000 | 8.080 | 7.780 |
COR | H Corder | 79 | 2412739.500000 3 Oct 1893 00:00:00.000000 | 2417629.000000 22 Feb 1907 12:00:00.000000 | 13.200 | 7.000 |
BN | A N Brown | 1,051 | 2417498.000000 14 Oct 1906 12:00:00.000000 | 2427694.000000 13 Sep 1934 12:00:00.000000 | 13.460 | 6.540 |
RY | P M Ryves | 71 | 2417534.000000 19 Nov 1906 12:00:00.000000 | 2418518.000000 30 Jul 1909 12:00:00.000000 | 12.220 | 6.700 |
D | F De Roy | 554 | 2417558.000000 13 Dec 1906 12:00:00.000000 | 2427803.000000 31 Dec 1934 12:00:00.000000 | 13.320 | 6.360 |
GDX | J A Greenwood | 13 | 2417696.000000 30 Apr 1907 12:00:00.000000 | 2419516.000000 23 Apr 1912 12:00:00.000000 | 12.530 | 7.680 |
BC | C L Brook | 14 | 2417816.000000 28 Aug 1907 12:00:00.000000 | 2418475.000000 17 Jun 1909 12:00:00.000000 | 13.420 | 6.660 |
NI | A A Nijland | 703 | 2417942.000000 1 Jan 1908 12:00:00.000000 | 2427787.000000 15 Dec 1934 12:00:00.000000 | 13.700 | 6.500 |
CRX | F R Cripps | 7 | 2419229.000000 11 Jul 1911 12:00:00.000000 | 2419982.000000 2 Aug 1913 12:00:00.000000 | 11.480 | 7.780 |
GBL | G B Lacchini | 35 | 2419322.000000 12 Oct 1911 12:00:00.000000 | 2420369.000000 24 Aug 1914 12:00:00.000000 | 11.780 | 7.610 |
BGL | D J Galera | 45 | 2419409.000000 7 Jan 1912 12:00:00.000000 | 2419748.000000 11 Dec 1912 12:00:00.000000 | 12.120 | 7.610 |
BH | C F Butterworth | 2,079 | 2419617.000000 2 Aug 1912 12:00:00.000000 | 2430077.500000 24 Mar 1941 00:00:00.000000 | 13.230 | 6.670 |
BO | J J Bougon | 169 | 2419919.000000 31 May 1913 12:00:00.000000 | 2424415.000000 21 Sep 1925 12:00:00.000000 | 13.220 | 6.820 |
TMX | A Thom | 88 | 2420219.000000 27 Mar 1914 12:00:00.000000 | 2422673.000000 14 Dec 1920 12:00:00.000000 | 12.280 | 7.020 |
BCX | A B Burbeck | 26 | 2420227.000000 4 Apr 1914 12:00:00.000000 | 2421203.000000 5 Dec 1916 12:00:00.000000 | 10.370 | 7.210 |
ABX | A Brun | 104 | 2422018.000000 28 Feb 1919 12:00:00.000000 | 2422932.000000 30 Aug 1921 12:00:00.000000 | 12.680 | 6.980 |
WO | H Whichello | 109 | 2422101.000000 22 May 1919 12:00:00.000000 | 2427848.500000 15 Feb 1935 00:00:00.000000 | 12.760 | 7.010 |
CA | R G Chandra | 171 | 2422704.000000 14 Jan 1921 12:00:00.000000 | 2429621.500000 24 Dec 1939 00:00:00.000000 | 13.020 | 6.800 |
WFH | W F H Waterfield | 111 | 2423224.000000 18 Jun 1922 12:00:00.000000 | 2424704.000000 7 Jul 1926 12:00:00.000000 | 13.320 | 7.480 |
CO | E H Collinson | 193 | 2423226.000000 20 Jun 1922 12:00:00.000000 | 2433621.500000 6 Dec 1950 00:00:00.000000 | 13.220 | 7.210 |
LI | W M Lindley | 174 | 2423428.000000 8 Jan 1923 12:00:00.000000 | 2429406.500000 23 May 1939 00:00:00.000000 | 13.390 | 6.700 |
BA | M K Bappu | 278 | 2424193.000000 11 Feb 1925 12:00:00.000000 | 2431061.500000 3 Dec 1943 00:00:00.000000 | 13.420 | 7.150 |
BK | T P Bhaskaran | 14 | 2424212.000000 2 Mar 1925 12:00:00.000000 | 2425024.000000 23 May 1927 12:00:00.000000 | 13.280 | 8.180 |
HA | G P B Hallowes | 47 | 2425493.000000 3 Sep 1928 12:00:00.000000 | 2426271.000000 21 Oct 1930 12:00:00.000000 | 13.320 | 6.640 |
LH | A W Lane-Hall | 92 | 2425769.000000 6 Jun 1929 12:00:00.000000 | 2427515.000000 18 Mar 1934 12:00:00.000000 | 12.730 | 7.510 |
SA | F Sargent | 185 | 2426347.000000 5 Jan 1931 12:00:00.000000 | 2429236.500000 4 Dec 1938 00:00:00.000000 | 13.120 | 7.020 |
SV | W H Steavenson | 37 | 2426443.000000 11 Apr 1931 12:00:00.000000 | 2427676.000000 26 Aug 1934 12:00:00.000000 | 12.900 | 11.970 |
RW | G O Rawstron | 36 | 2427334.000000 18 Sep 1933 12:00:00.000000 | 2429578.500000 11 Nov 1939 00:00:00.000000 | 12.310 | 7.110 |
RB | J H Robinson | 30 | 2427836.500000 3 Feb 1935 00:00:00.000000 | 2438938.500000 27 Jun 1965 00:00:00.000000 | 13.230 | 7.030 |
HL | F M Holborn | 358 | 2428050.500000 5 Sep 1935 00:00:00.000000 | 2436840.400000 28 Sep 1959 21:36:00.000000 | 14.070 | 6.790 |
BZ | J R Bazin | 270 | 2428757.400000 11 Aug 1937 21:36:00.000000 | 2433944.300000 24 Oct 1951 19:12:00.000000 | 13.230 | 6.780 |
CX | H W Cox | 153 | 2428916.500000 18 Jan 1938 00:00:00.000000 | 2432183.500000 29 Dec 1946 00:00:00.000000 | 13.230 | 7.350 |
CZ | L A Cox | 50 | 2428916.500000 18 Jan 1938 00:00:00.000000 | 2429250.500000 18 Dec 1938 00:00:00.000000 | 13.120 | 7.710 |
AL | A F O Alexander | 52 | 2428953.300000 23 Feb 1938 19:12:00.000000 | 2431343.400000 9 Sep 1944 21:36:00.000000 | 11.600 | 7.220 |
KT | N F H Knight | 85 | 2429075.500000 26 Jun 1938 00:00:00.000000 | 2432197.500000 12 Jan 1947 00:00:00.000000 | 13.310 | 7.370 |
WL | H Wildey | 36 | 2431500.300000 13 Feb 1945 19:12:00.000000 | 2432819.400000 24 Sep 1948 21:36:00.000000 | 13.320 | 6.640 |
HE | A Heath | 42 | 2431516.300000 1 Mar 1945 19:12:00.000000 | 2432145.700000 21 Nov 1946 04:48:00.000000 | 12.020 | 7.270 |
KI | H C King | 5 | 2432100.500000 7 Oct 1946 00:00:00.000000 | 2432182.500000 28 Dec 1946 00:00:00.000000 | 12.530 | 10.700 |
RO | F A Roper | 390 | 2433334.500000 22 Feb 1950 00:00:00.000000 | 2438390.400000 26 Dec 1963 21:36:00.000000 | 13.380 | 7.110 |
FR | J Friends | 47 | 2433846.500000 19 Jul 1951 00:00:00.000000 | 2439354.500000 17 Aug 1966 00:00:00.000000 | 12.020 | 7.180 |
GR | R F Griffin | 141 | 2434748.400000 5 Jan 1954 21:36:00.000000 | 2435787.400000 9 Nov 1956 21:36:00.000000 | 12.830 | 7.460 |
MI | R Middlefell | 34 | 2436603.300000 3 Feb 1959 19:12:00.000000 | 2438702.500000 3 Nov 1964 00:00:00.000000 | 12.980 | 7.380 |
AU | M Atchison | 11 | 2436643.400000 15 Mar 1959 21:36:00.000000 | 2436867.400000 25 Oct 1959 21:36:00.000000 | 12.480 | 7.500 |
JN | R H Jones | 113 | 2437777.400000 22 Apr 1962 21:36:00.000000 | 2440485.300000 20 Sep 1969 19:12:00.000000 | 12.530 | 6.890 |
FE | E S Farr | 1 | 2437784.500000 30 Apr 1962 00:00:00.000000 | 2437784.500000 30 Apr 1962 00:00:00.000000 | 8.010 | 8.010 |
KX | O J Knox | 451 | 2439203.400000 18 Mar 1966 21:36:00.000000 | 2442404.300000 22 Dec 1974 19:12:00.000000 | 13.800 | 6.900 |
PZ | D Pye | 6 | 2440289.400000 8 Mar 1969 21:36:00.000000 | 2440327.400000 15 Apr 1969 21:36:00.000000 | 13.800 | 12.420 |
HH | I D Howarth | 4 | 2441076.400000 4 May 1971 21:36:00.000000 | 2441809.600000 7 May 1973 02:24:00.000000 | 11.700 | 8.280 |
BU | S F Burch | 92 | 2441341.400000 24 Jan 1972 21:36:00.000000 | 2442406.300000 24 Dec 1974 19:12:00.000000 | 13.220 | 7.180 |
IS | J E Isles | 1 | 2441404.400000 27 Mar 1972 21:36:00.000000 | 2441404.400000 27 Mar 1972 21:36:00.000000 | 7.480 | 7.480 |
YO | P J Young | 72 | 2441619.400000 28 Oct 1972 21:36:00.000000 | 2442047.300000 30 Dec 1973 19:12:00.000000 | 13.260 | 7.200 |
MZ | I Miller | 5 | 2441676.300000 24 Dec 1972 19:12:00.000000 | 2441738.300000 24 Feb 1973 19:12:00.000000 | 8.400 | 7.200 |
HY | P W Hornby | 9 | 2441684.500000 2 Jan 1973 00:00:00.000000 | 2442326.500000 6 Oct 1974 00:00:00.000000 | 11.850 | 7.040 |
MM | I A Middlemist | 14 | 2441698.300000 15 Jan 1973 19:12:00.000000 | 2442031.300000 14 Dec 1973 19:12:00.000000 | 10.660 | 7.210 |
GX | D Griffin | 64 | 2441737.500000 24 Feb 1973 00:00:00.000000 | 2442396.600000 15 Dec 1974 02:24:00.000000 | 13.210 | 7.460 |
DR | R C Dryden | 2 | 2441738.400000 24 Feb 1973 21:36:00.000000 | 2441768.400000 26 Mar 1973 21:36:00.000000 | 9.410 | 8.320 |
BP | J A Bailey | 5 | 2441809.600000 7 May 1973 02:24:00.000000 | 2442039.300000 22 Dec 1973 19:12:00.000000 | 11.750 | 7.830 |
PT | R A H Paterson | 29 | 2441819.500000 17 May 1973 00:00:00.000000 | 2442249.400000 20 Jul 1974 21:36:00.000000 | 13.210 | 7.710 |
PO | A K Porter | 13 | 2441957.500000 2 Oct 1973 00:00:00.000000 | 2442317.400000 26 Sep 1974 21:36:00.000000 | 12.730 | 7.360 |
BM | A Buckman | 7 | 2441972.400000 16 Oct 1973 21:36:00.000000 | 2442048.400000 31 Dec 1973 21:36:00.000000 | 9.650 | 7.710 |
HU | D Hufton | 19 | 2441976.700000 21 Oct 1973 04:48:00.000000 | 2442341.400000 20 Oct 1974 21:36:00.000000 | 9.760 | 7.080 |
PC | C Pezzarossa | 1 | 2441980.200000 24 Oct 1973 16:48:00.000000 | 2441980.200000 24 Oct 1973 16:48:00.000000 | 7.610 | 7.610 |
WS | E J W West | 12 | 2442006.600000 20 Nov 1973 02:24:00.000000 | 2449136.402700 28 May 1993 21:39:53.280000 | 13.300 | 7.950 |
LC | D Churchill | 8 | 2442061.300000 13 Jan 1974 19:12:00.000000 | 2442327.300000 6 Oct 1974 19:12:00.000000 | 10.560 | 7.810 |
BJ | B J Beesley | 11 | 2442151.500000 14 Apr 1974 00:00:00.000000 | 2442318.700000 28 Sep 1974 04:48:00.000000 | 12.530 | 7.080 |
ON | N M Bone | 87 | 2448305.344000 17 Feb 1991 20:15:21.600000 | 2454640.472200 22 Jun 2008 23:19:58.080000 | 9.600 | 6.300 |
QM | T Markham | 361 | 2443459.417000 11 Nov 1977 22:00:28.800000 | 2457395.410000 7 Jan 2016 21:50:24.000000 | 10.060 | 6.500 |
POG | G Pointer | 6 | 2449175.454800 6 Jul 1993 22:54:54.720000 | 2449220.375000 20 Aug 1993 21:00:00.000000 | 8.140 | 7.710 |
GOD | S Godwin | 16 | 2449186.500000 18 Jul 1993 00:00:00.000000 | 2451287.593000 19 Apr 1999 02:13:55.200000 | 7.810 | 6.900 |
BAR | M Barrett | 28 | 2449210.484000 10 Aug 1993 23:36:57.600000 | 2458817.484000 29 Nov 2019 23:36:57.600000 | 9.100 | 6.500 |
EHH | E H Horsley | 34 | 2449212.450600 12 Aug 1993 22:48:51.840000 | 2451347.519400 18 Jun 1999 00:27:56.160000 | 12.980 | 6.900 |
LGR | L Green | 11 | 2449444.451300 1 Apr 1994 22:49:52.320000 | 2450134.395800 20 Feb 1996 21:29:57.120000 | 8.180 | 6.600 |
CLM | M Clarke | 95 | 2449445.593700 3 Apr 1994 02:14:55.680000 | 2451541.239500 28 Dec 1999 17:44:52.800000 | 13.500 | 6.700 |
FAM | F Hamilton | 8 | 2449453.438800 10 Apr 1994 22:31:52.320000 | 2449544.461100 10 Jul 1994 23:03:59.040000 | 8.800 | 6.600 |
DAR | K Darbyshire | 8 | 2449486.416600 13 May 1994 21:59:54.240000 | 2449788.363800 11 Mar 1995 20:43:52.320000 | 8.200 | 6.800 |
GOM | G O'Mara | 3 | 2449504.576300 1 Jun 1994 01:49:52.320000 | 2449552.545800 19 Jul 1994 01:05:57.120000 | 8.180 | 6.700 |
ARB | A R Baransky | 25 | 2449960.400000 30 Aug 1995 21:36:00.000000 | 2450761.600000 9 Nov 1997 02:24:00.000000 | 13.200 | 6.800 |
RJB | R J Bouma | 86 | 2450247.500000 13 Jun 1996 00:00:00.000000 | 2451901.400000 22 Dec 2000 21:36:00.000000 | 13.400 | 6.800 |
JEN | S Jenner | 5 | 2450396.470800 8 Nov 1996 23:17:57.120000 | 2450723.497200 1 Oct 1997 23:55:58.080000 | 7.830 | 6.950 |
BHG | B H Granslo | 21 | 2450508.580000 1 Mar 1997 01:55:12.000000 | 2451295.420000 26 Apr 1999 22:04:48.000000 | 12.500 | 7.300 |
VP | P Veleshchuk | 30 | 2450647.500000 18 Jul 1997 00:00:00.000000 | 2450746.400000 24 Oct 1997 21:36:00.000000 | 10.200 | 7.000 |
JOC | J Coates | 14 | 2450662.395800 1 Aug 1997 21:29:57.120000 | 2451018.506900 24 Jul 1998 00:09:56.160000 | 8.580 | 6.800 |
INS | S Inman | 4 | 2450688.427000 27 Aug 1997 22:14:52.800000 | 2450723.381900 1 Oct 1997 21:09:56.160000 | 7.700 | 7.000 |
TUB | V Tuboly | 2 | 2450921.388900 17 Apr 1998 21:20:00.960000 | 2450927.371500 23 Apr 1998 20:54:57.600000 | 11.800 | 11.800 |
TJ | J Toone | 554 | 2444713.434000 18 Apr 1981 22:24:57.600000 | 2460508.483000 16 Jul 2024 23:35:31.200000 | 13.600 | 6.600 |
PJC | P J Charleton | 19 | 2451871.345800 22 Nov 2000 20:17:57.120000 | 2452554.350000 6 Oct 2002 20:24:00.000000 | 9.000 | 6.500 |
-SK | G Stefanopoulos | 15 | 2453756.280600 20 Jan 2006 18:44:03.840000 | 2456738.411000 21 Mar 2014 21:51:50.400000 | 8.600 | 6.900 |
AX | C M Allen | 1 | 2454086.390300 16 Dec 2006 21:22:01.920000 | 2454086.390300 16 Dec 2006 21:22:01.920000 | 9.600 | 9.600 |
BCP | C D Beech | 30 | 2454952.463900 30 Apr 2009 23:08:00.960000 | 2457849.482030 5 Apr 2017 23:34:07.392000 | 11.900 | 8.400 |
ISM | I S Megson | 7 | 2453465.375683 4 Apr 2005 21:00:59.011200 | 2453505.454491 14 May 2005 22:54:28.022400 | 9.767 | 7.855 |
BAX | J Baxendell | 132 | 2399423.500000 19 Apr 1857 00:00:00.000000 | 2410022.500000 26 Apr 1886 00:00:00.000000 | 13.100 | 6.500 |
AG | S W Albrighton | 169 | 2456721.354000 4 Mar 2014 20:29:45.600000 | 2460414.389000 13 Apr 2024 21:20:09.600000 | 13.200 | 6.900 |
DSC | D Scanlan | 3 | 2457235.438000 31 Jul 2015 22:30:43.200000 | 2457258.396000 23 Aug 2015 21:30:14.400000 | 12.900 | 11.700 |
TLH | T L Heywood | 68 | 2457605.413000 4 Aug 2016 21:54:43.200000 | 2460092.458000 27 May 2023 22:59:31.200000 | 9.500 | 6.900 |
CMY | M Crook | 1 | 2457684.340000 22 Oct 2016 20:09:36.000000 | 2457684.340000 22 Oct 2016 20:09:36.000000 | 8.200 | 8.200 |
DMS | D Matthews | 68 | 2458032.294440 5 Oct 2017 19:03:59.616000 | 2460538.407640 15 Aug 2024 21:47:00.096000 | 12.690 | 10.520 |
JL | M L Joslin | 4 | 2458258.411300 19 May 2018 21:52:16.320000 | 2458299.442700 29 Jun 2018 22:37:29.280000 | 9.200 | 7.600 |
GPF | G Fleming | 52 | 2458186.502432 9 Mar 2018 00:03:30.124800 | 2460431.457380 30 Apr 2024 22:58:37.632000 | 12.014 | 6.681 |
RPE | R Pearce | 4 | 2459099.355000 6 Sep 2020 20:31:12.000000 | 2460088.444000 23 May 2023 22:39:21.600000 | 8.800 | 7.900 |
TY | M D Taylor | 4 | 2455835.336000 30 Sep 2011 20:03:50.400000 | 2455861.313000 26 Oct 2011 19:30:43.200000 | 7.400 | 6.700 |
IWT | I L Walton | 1 | 2459307.560550 3 Apr 2021 01:27:11.520000 | 2459307.560550 3 Apr 2021 01:27:11.520000 | 12.290 | 12.290 |
NMC | C Newman | 2 | 2459751.482000 20 Jun 2022 23:34:04.800000 | 2459758.529000 28 Jun 2022 00:41:45.600000 | 8.400 | 8.200 |
IW | W J Worraker | 9 | 2460000.404000 24 Feb 2023 21:41:45.600000 | 2460202.347000 14 Sep 2023 20:19:40.800000 | 9.100 | 7.000 |