Supporting amateur astronomers since 1890
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British Astronomical Association Supporting amateur astronomers since 1890 |
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| Total observations: | 9,930 | Minimum magnitude: | 13.880 | Maximum magnitude: | 4.500 | ||
| First observation: | JD 2411717.000000 | \ | 15 Dec 1890 12:00:00.000000 UT | Latest observation: | JD 2460417.408000 | \ | 16 Apr 2024 21:47:31.200000 UT |
| Observation Method | Number of Observations |
|---|---|
| Visual | 9,884 |
| CCD | 24 |
| CMOS | 22 |
| Observer Id | Observer Name | Number of Observations | First Observation JD / UT | Latest Observation JD / UT | Minimum Magnitude | Maximum Magnitude |
|---|---|---|---|---|---|---|
| MK | E E Markwick | 205 | 2411717.000000 15 Dec 1890 12:00:00.000000 | 2424036.000000 7 Sep 1924 12:00:00.000000 | 12.900 | 5.500 |
| JMP | J De Morae Pereira | 44 | 2412307.500000 28 Jul 1892 00:00:00.000000 | 2413488.500000 22 Oct 1895 00:00:00.000000 | 12.000 | 5.600 |
| COR | H Corder | 44 | 2412611.500000 28 May 1893 00:00:00.000000 | 2417104.000000 15 Sep 1905 12:00:00.000000 | 13.000 | 5.800 |
| CHJ | J W L Child | 19 | 2415594.000000 28 Jul 1901 12:00:00.000000 | 2416055.000000 1 Nov 1902 12:00:00.000000 | 11.400 | 6.500 |
| KEX | J Kelly | 21 | 2415634.000000 6 Sep 1901 12:00:00.000000 | 2415725.000000 6 Dec 1901 12:00:00.000000 | 8.000 | 6.800 |
| PEX | J M Peridier | 6 | 2415643.000000 15 Sep 1901 12:00:00.000000 | 2415663.000000 5 Oct 1901 12:00:00.000000 | 7.400 | 6.800 |
| LEB | O A Lebeau | 10 | 2415699.000000 10 Nov 1901 12:00:00.000000 | 2415755.000000 5 Jan 1902 12:00:00.000000 | 9.300 | 7.400 |
| RY | P M Ryves | 45 | 2417742.000000 15 Jun 1907 12:00:00.000000 | 2424499.000000 14 Dec 1925 12:00:00.000000 | 12.400 | 6.640 |
| D | F De Roy | 480 | 2417764.000000 7 Jul 1907 12:00:00.000000 | 2427796.000000 24 Dec 1934 12:00:00.000000 | 12.800 | 5.660 |
| BN | A N Brown | 614 | 2417773.000000 16 Jul 1907 12:00:00.000000 | 2427723.000000 12 Oct 1934 12:00:00.000000 | 13.210 | 5.810 |
| GDX | J A Greenwood | 9 | 2417880.000000 31 Oct 1907 12:00:00.000000 | 2419666.000000 20 Sep 1912 12:00:00.000000 | 12.400 | 8.080 |
| BC | C L Brook | 262 | 2418448.000000 21 May 1909 12:00:00.000000 | 2424082.000000 23 Oct 1924 12:00:00.000000 | 13.340 | 5.960 |
| GHX | M E J Gheury | 46 | 2418718.000000 15 Feb 1910 12:00:00.000000 | 2420274.000000 21 May 1914 12:00:00.000000 | 12.400 | 7.170 |
| FGB | F G Brown | 44 | 2418910.000000 26 Aug 1910 12:00:00.000000 | 2419574.000000 20 Jun 1912 12:00:00.000000 | 13.140 | 6.940 |
| HW | E J How | 156 | 2418977.000000 1 Nov 1910 12:00:00.000000 | 2426733.000000 26 Jan 1932 12:00:00.000000 | 13.000 | 6.570 |
| BIX | E G Bird | 4 | 2419243.000000 25 Jul 1911 12:00:00.000000 | 2419271.000000 22 Aug 1911 12:00:00.000000 | 11.460 | 9.720 |
| DK | H L Dilks | 1 | 2419481.000000 19 Mar 1912 12:00:00.000000 | 2419481.000000 19 Mar 1912 12:00:00.000000 | 12.400 | 12.400 |
| GBL | G B Lacchini | 34 | 2419503.000000 10 Apr 1912 12:00:00.000000 | 2420123.000000 21 Dec 1913 12:00:00.000000 | 11.220 | 6.700 |
| GI | N V Ginori | 72 | 2419517.000000 24 Apr 1912 12:00:00.000000 | 2423613.000000 12 Jul 1923 12:00:00.000000 | 12.660 | 6.570 |
| BL | J Van Der Bilt | 354 | 2419667.000000 21 Sep 1912 12:00:00.000000 | 2428492.500000 20 Nov 1936 00:00:00.000000 | 12.810 | 5.600 |
| HTH | H Thomson | 169 | 2419751.000000 14 Dec 1912 12:00:00.000000 | 2422468.000000 23 May 1920 12:00:00.000000 | 13.880 | 5.860 |
| BG | J H Bridger | 444 | 2420947.000000 24 Mar 1916 12:00:00.000000 | 2428918.200000 19 Jan 1938 16:48:00.000000 | 13.580 | 5.660 |
| BH | C F Butterworth | 1,616 | 2420947.000000 24 Mar 1916 12:00:00.000000 | 2430077.300000 23 Mar 1941 19:12:00.000000 | 13.340 | 5.260 |
| BCX | A B Burbeck | 1 | 2421144.000000 7 Oct 1916 12:00:00.000000 | 2421144.000000 7 Oct 1916 12:00:00.000000 | 12.510 | 12.510 |
| WO | H Whichello | 143 | 2421664.000000 11 Mar 1918 12:00:00.000000 | 2427889.400000 27 Mar 1935 21:36:00.000000 | 12.600 | 5.760 |
| BO | J J Bougon | 84 | 2422126.000000 16 Jun 1919 12:00:00.000000 | 2423041.000000 17 Dec 1921 12:00:00.000000 | 13.390 | 6.480 |
| MG | G Merton | 33 | 2422501.000000 25 Jun 1920 12:00:00.000000 | 2422911.000000 9 Aug 1921 12:00:00.000000 | 12.670 | 7.100 |
| LI | W M Lindley | 243 | 2423427.000000 7 Jan 1923 12:00:00.000000 | 2429492.500000 17 Aug 1939 00:00:00.000000 | 13.130 | 5.340 |
| PH | T E R Phillips | 19 | 2423639.000000 7 Aug 1923 12:00:00.000000 | 2425457.000000 29 Jul 1928 12:00:00.000000 | 12.360 | 6.370 |
| PRE | E Prentice | 6 | 2423678.000000 15 Sep 1923 12:00:00.000000 | 2423777.000000 23 Dec 1923 12:00:00.000000 | 11.360 | 7.500 |
| SA | F Sargent | 337 | 2423958.000000 21 Jun 1924 12:00:00.000000 | 2429236.400000 3 Dec 1938 21:36:00.000000 | 12.700 | 5.660 |
| WFH | W F H Waterfield | 6 | 2424615.000000 9 Apr 1926 12:00:00.000000 | 2424704.000000 7 Jul 1926 12:00:00.000000 | 10.220 | 5.980 |
| CA | R G Chandra | 72 | 2424712.000000 15 Jul 1926 12:00:00.000000 | 2429603.500000 6 Dec 1939 00:00:00.000000 | 12.400 | 5.800 |
| HA | G P B Hallowes | 98 | 2424904.000000 23 Jan 1927 12:00:00.000000 | 2426626.000000 11 Oct 1931 12:00:00.000000 | 12.600 | 6.600 |
| SH | W L Shepherd | 117 | 2425235.000000 20 Dec 1927 12:00:00.000000 | 2433943.400000 23 Oct 1951 21:36:00.000000 | 13.630 | 5.380 |
| LH | A W Lane-Hall | 76 | 2425982.000000 5 Jan 1930 12:00:00.000000 | 2427515.000000 18 Mar 1934 12:00:00.000000 | 12.220 | 5.460 |
| HL | F M Holborn | 283 | 2427987.500000 4 Jul 1935 00:00:00.000000 | 2436988.300000 23 Feb 1960 19:12:00.000000 | 12.710 | 5.370 |
| PA | G E Patston | 13 | 2428405.500000 25 Aug 1936 00:00:00.000000 | 2428857.400000 19 Nov 1937 21:36:00.000000 | 12.600 | 10.690 |
| BZ | J R Bazin | 334 | 2428430.400000 18 Sep 1936 21:36:00.000000 | 2433872.400000 13 Aug 1951 21:36:00.000000 | 12.730 | 5.280 |
| KT | N F H Knight | 51 | 2428970.300000 12 Mar 1938 19:12:00.000000 | 2432181.400000 26 Dec 1946 21:36:00.000000 | 12.120 | 5.600 |
| CX | H W Cox | 106 | 2429108.500000 29 Jul 1938 00:00:00.000000 | 2432185.300000 30 Dec 1946 19:12:00.000000 | 12.940 | 6.260 |
| CZ | L A Cox | 14 | 2429122.500000 12 Aug 1938 00:00:00.000000 | 2429263.300000 30 Dec 1938 19:12:00.000000 | 12.400 | 8.800 |
| IL | D W Ilott | 2 | 2429492.400000 16 Aug 1939 21:36:00.000000 | 2429760.400000 10 May 1940 21:36:00.000000 | 10.040 | 7.670 |
| KI | H C King | 3 | 2430988.400000 20 Sep 1943 21:36:00.000000 | 2432173.500000 19 Dec 1946 00:00:00.000000 | 12.120 | 8.160 |
| HE | A Heath | 7 | 2432027.600000 26 Jul 1946 02:24:00.000000 | 2432092.300000 28 Sep 1946 19:12:00.000000 | 7.700 | 6.700 |
| AN | R G Andrews | 338 | 2432069.400000 5 Sep 1946 21:36:00.000000 | 2436924.500000 22 Dec 1959 00:00:00.000000 | 13.480 | 5.310 |
| RO | F A Roper | 313 | 2433334.000000 21 Feb 1950 12:00:00.000000 | 2438390.500000 27 Dec 1963 00:00:00.000000 | 12.360 | 5.860 |
| FR | J Friends | 95 | 2433730.400000 24 Mar 1951 21:36:00.000000 | 2439381.500000 13 Sep 1966 00:00:00.000000 | 12.700 | 5.730 |
| GR | R F Griffin | 85 | 2434986.400000 31 Aug 1954 21:36:00.000000 | 2435807.400000 29 Nov 1956 21:36:00.000000 | 12.100 | 5.960 |
| JO | H Joy | 3 | 2435007.500000 22 Sep 1954 00:00:00.000000 | 2435046.400000 30 Oct 1954 21:36:00.000000 | 8.900 | 7.120 |
| WA | E Waring | 19 | 2436454.400000 7 Sep 1958 21:36:00.000000 | 2436524.300000 16 Nov 1958 19:12:00.000000 | 9.930 | 8.950 |
| MI | R Middlefell | 25 | 2436722.500000 3 Jun 1959 00:00:00.000000 | 2438650.500000 12 Sep 1964 00:00:00.000000 | 10.500 | 6.480 |
| HT | G H Hartley | 34 | 2436775.500000 26 Jul 1959 00:00:00.000000 | 2437170.500000 24 Aug 1960 00:00:00.000000 | 10.820 | 6.180 |
| SD | J Shepherd | 88 | 2436813.400000 1 Sep 1959 21:36:00.000000 | 2439766.300000 2 Oct 1967 19:12:00.000000 | 12.210 | 5.630 |
| PN | M V Penston | 10 | 2436839.400000 27 Sep 1959 21:36:00.000000 | 2438001.500000 3 Dec 1962 00:00:00.000000 | 10.860 | 7.800 |
| SC | T G Scott | 35 | 2436881.300000 8 Nov 1959 19:12:00.000000 | 2439463.300000 3 Dec 1966 19:12:00.000000 | 10.500 | 6.410 |
| ME | J Meeus | 3 | 2437205.300000 27 Sep 1960 19:12:00.000000 | 2437246.300000 7 Nov 1960 19:12:00.000000 | 7.270 | 6.610 |
| CU | R F Churchhouse | 1 | 2437706.400000 10 Feb 1962 21:36:00.000000 | 2437706.400000 10 Feb 1962 21:36:00.000000 | 8.700 | 8.700 |
| JN | R H Jones | 76 | 2437917.400000 9 Sep 1962 21:36:00.000000 | 2440101.400000 1 Sep 1968 21:36:00.000000 | 12.400 | 5.730 |
| LB | C M H Lambert | 28 | 2438036.400000 6 Jan 1963 21:36:00.000000 | 2439438.400000 8 Nov 1966 21:36:00.000000 | 12.120 | 6.000 |
| FH | J I M Forsyth | 2 | 2438155.400000 5 May 1963 21:36:00.000000 | 2438425.300000 30 Jan 1964 19:12:00.000000 | 9.300 | 7.800 |
| LO | R S Lomas | 142 | 2438227.500000 17 Jul 1963 00:00:00.000000 | 2440219.400000 28 Dec 1968 21:36:00.000000 | 12.190 | 5.760 |
| SW | D R B Saw | 418 | 2439050.400000 16 Oct 1965 21:36:00.000000 | 2442047.300000 30 Dec 1973 19:12:00.000000 | 13.020 | 5.280 |
| CQ | G Cowie | 58 | 2439178.300000 21 Feb 1966 19:12:00.000000 | 2440127.400000 27 Sep 1968 21:36:00.000000 | 12.120 | 5.530 |
| VK | E Vilkki | 8 | 2439246.600000 1 May 1966 02:24:00.000000 | 2439672.500000 1 Jul 1967 00:00:00.000000 | 12.120 | 9.660 |
| HI | G P Hawkins | 106 | 2440007.500000 31 May 1968 00:00:00.000000 | 2442047.400000 30 Dec 1973 21:36:00.000000 | 12.970 | 5.310 |
| PZ | D Pye | 7 | 2440250.400000 28 Jan 1969 21:36:00.000000 | 2440535.400000 9 Nov 1969 21:36:00.000000 | 12.520 | 8.390 |
| AD | S J Anderson | 7 | 2440503.400000 8 Oct 1969 21:36:00.000000 | 2441650.400000 28 Nov 1972 21:36:00.000000 | 12.400 | 8.470 |
| PT | R A H Paterson | 47 | 2440554.400000 28 Nov 1969 21:36:00.000000 | 2442119.400000 12 Mar 1974 21:36:00.000000 | 13.100 | 5.900 |
| RI | M J Ring | 8 | 2440578.400000 22 Dec 1969 21:36:00.000000 | 2440652.300000 6 Mar 1970 19:12:00.000000 | 8.700 | 7.900 |
| YO | P J Young | 34 | 2441704.300000 21 Jan 1973 19:12:00.000000 | 2442043.500000 27 Dec 1973 00:00:00.000000 | 12.710 | 5.540 |
| MX | L R Matthews | 20 | 2441851.500000 18 Jun 1973 00:00:00.000000 | 2442074.500000 27 Jan 1974 00:00:00.000000 | 11.690 | 5.730 |
| HY | P W Hornby | 10 | 2441862.400000 28 Jun 1973 21:36:00.000000 | 2442326.600000 6 Oct 1974 02:24:00.000000 | 10.360 | 5.560 |
| HH | I D Howarth | 5 | 2441868.500000 5 Jul 1973 00:00:00.000000 | 2441951.500000 26 Sep 1973 00:00:00.000000 | 8.000 | 5.400 |
| PC | C Pezzarossa | 14 | 2441893.400000 29 Jul 1973 21:36:00.000000 | 2441960.300000 4 Oct 1973 19:12:00.000000 | 8.300 | 5.900 |
| BP | J A Bailey | 4 | 2442012.500000 26 Nov 1973 00:00:00.000000 | 2442040.400000 23 Dec 1973 21:36:00.000000 | 9.820 | 9.620 |
| PO | A K Porter | 6 | 2442082.400000 3 Feb 1974 21:36:00.000000 | 2442397.400000 15 Dec 1974 21:36:00.000000 | 12.600 | 6.980 |
| TY | M D Taylor | 2 | 2442319.300000 28 Sep 1974 19:12:00.000000 | 2442367.400000 15 Nov 1974 21:36:00.000000 | 8.050 | 7.170 |
| ARB | A R Baransky | 11 | 2450013.500000 23 Oct 1995 00:00:00.000000 | 2450099.300000 16 Jan 1996 19:12:00.000000 | 10.300 | 6.400 |
| RJB | R J Bouma | 81 | 2450249.500000 15 Jun 1996 00:00:00.000000 | 2451896.400000 17 Dec 2000 21:36:00.000000 | 12.500 | 5.700 |
| VP | P Veleshchuk | 36 | 2450467.200000 18 Jan 1997 16:48:00.000000 | 2450547.300000 8 Apr 1997 19:12:00.000000 | 8.200 | 5.900 |
| BHG | B H Granslo | 10 | 2450476.370000 27 Jan 1997 20:52:48.000000 | 2451796.440000 8 Sep 2000 22:33:36.000000 | 9.700 | 5.700 |
| TJ | J Toone | 526 | 2444776.533000 21 Jun 1981 00:47:31.200000 | 2460417.408000 16 Apr 2024 21:47:31.200000 | 13.200 | 4.800 |
| QM | T Markham | 184 | 2443596.424000 28 Mar 1978 22:10:33.600000 | 2457488.649000 10 Apr 2016 03:34:33.600000 | 9.600 | 4.900 |
| -SK | G Stefanopoulos | 51 | 2451773.282600 16 Aug 2000 18:46:56.640000 | 2456597.294000 31 Oct 2013 19:03:21.600000 | 11.000 | 4.500 |
| PJC | P J Charleton | 4 | 2451887.473600 8 Dec 2000 23:21:59.040000 | 2452520.386800 2 Sep 2002 21:16:59.520000 | 11.900 | 7.900 |
| LOU | D Loughney | 67 | 2452613.479200 4 Dec 2002 23:30:02.880000 | 2454085.437500 15 Dec 2006 22:30:00.000000 | 9.600 | 5.300 |
| AX | C M Allen | 32 | 2453916.422200 29 Jun 2006 22:07:58.080000 | 2455845.395100 10 Oct 2011 21:28:56.640000 | 12.700 | 5.400 |
| TLH | T L Heywood | 31 | 2457899.552000 26 May 2017 01:14:52.800000 | 2459584.326000 4 Jan 2022 19:49:26.400000 | 9.500 | 5.800 |
| AG | S W Albrighton | 53 | 2458138.424000 19 Jan 2018 22:10:33.600000 | 2460342.455000 1 Feb 2024 22:55:12.000000 | 13.100 | 5.200 |
| GPF | G Fleming | 46 | 2458748.383900 21 Sep 2019 21:12:48.960000 | 2460277.361770 28 Nov 2023 20:40:56.928000 | 10.207 | 5.565 |