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Total observations: | 4,266 | Minimum magnitude: | 14.900 | Maximum magnitude: | 8.440 | ||
First observation: | JD 2420198.500000 | \ | 7 Mar 1914 00:00:00.000000 UT | Latest observation: | JD 2460325.407240 | \ | 15 Jan 2024 21:46:25.536000 UT |
Observation Method | Number of Observations |
---|---|
Visual | 4,237 |
CCD | 17 |
CMOS | 12 |
Observer Id | Observer Name | Number of Observations | First Observation JD / UT | Latest Observation JD / UT | Minimum Magnitude | Maximum Magnitude |
---|---|---|---|---|---|---|
BH | C F Butterworth | 1,141 | 2421722.000000 8 May 1918 12:00:00.000000 | 2430077.400000 23 Mar 1941 21:36:00.000000 | 13.700 | 8.530 |
BC | C L Brook | 7 | 2421904.000000 6 Nov 1918 12:00:00.000000 | 2422372.000000 17 Feb 1920 12:00:00.000000 | 13.100 | 9.210 |
WO | H Whichello | 22 | 2422013.000000 23 Feb 1919 12:00:00.000000 | 2424227.000000 17 Mar 1925 12:00:00.000000 | 12.540 | 9.000 |
HTH | H Thomson | 8 | 2422023.000000 5 Mar 1919 12:00:00.000000 | 2422332.000000 8 Jan 1920 12:00:00.000000 | 14.100 | 8.800 |
BN | A N Brown | 261 | 2422203.000000 1 Sep 1919 12:00:00.000000 | 2427504.000000 7 Mar 1934 12:00:00.000000 | 13.800 | 8.700 |
D | F De Roy | 229 | 2422338.000000 14 Jan 1920 12:00:00.000000 | 2427803.000000 31 Dec 1934 12:00:00.000000 | 13.800 | 8.700 |
GRH | H R Grimwood | 9 | 2422752.000000 3 Mar 1921 12:00:00.000000 | 2423160.000000 15 Apr 1922 12:00:00.000000 | 13.600 | 9.970 |
WFH | W F H Waterfield | 78 | 2422964.000000 1 Oct 1921 12:00:00.000000 | 2424620.000000 14 Apr 1926 12:00:00.000000 | 14.100 | 8.710 |
LI | W M Lindley | 198 | 2423343.000000 15 Oct 1922 12:00:00.000000 | 2428810.500000 4 Oct 1937 00:00:00.000000 | 14.300 | 8.600 |
LE | G H Lepper | 46 | 2423346.000000 18 Oct 1922 12:00:00.000000 | 2424798.000000 9 Oct 1926 12:00:00.000000 | 12.740 | 8.780 |
CA | R G Chandra | 89 | 2423376.000000 17 Nov 1922 12:00:00.000000 | 2429626.500000 29 Dec 1939 00:00:00.000000 | 13.800 | 8.940 |
SA | F Sargent | 82 | 2423647.000000 15 Aug 1923 12:00:00.000000 | 2426342.000000 31 Dec 1930 12:00:00.000000 | 13.400 | 8.790 |
PH | T E R Phillips | 15 | 2423671.000000 8 Sep 1923 12:00:00.000000 | 2424906.000000 25 Jan 1927 12:00:00.000000 | 13.600 | 9.440 |
BK | T P Bhaskaran | 79 | 2424122.000000 2 Dec 1924 12:00:00.000000 | 2426333.000000 22 Dec 1930 12:00:00.000000 | 14.800 | 8.800 |
HA | G P B Hallowes | 131 | 2424134.000000 14 Dec 1924 12:00:00.000000 | 2426639.000000 24 Oct 1931 12:00:00.000000 | 14.900 | 8.720 |
BA | M K Bappu | 254 | 2424167.000000 16 Jan 1925 12:00:00.000000 | 2431079.200000 20 Dec 1943 16:48:00.000000 | 14.900 | 8.600 |
ST | G E B Stephenson | 79 | 2424183.000000 1 Feb 1925 12:00:00.000000 | 2425947.000000 1 Dec 1929 12:00:00.000000 | 13.150 | 8.600 |
SV | W H Steavenson | 83 | 2424437.000000 13 Oct 1925 12:00:00.000000 | 2428252.500000 25 Mar 1936 00:00:00.000000 | 14.580 | 9.310 |
SI | H Simmons | 20 | 2424535.000000 19 Jan 1926 12:00:00.000000 | 2424967.000000 27 Mar 1927 12:00:00.000000 | 12.440 | 9.310 |
SH | W L Shepherd | 95 | 2425242.000000 27 Dec 1927 12:00:00.000000 | 2433945.400000 25 Oct 1951 21:36:00.000000 | 13.400 | 8.880 |
LH | A W Lane-Hall | 75 | 2425587.000000 6 Dec 1928 12:00:00.000000 | 2427515.000000 18 Mar 1934 12:00:00.000000 | 12.600 | 9.100 |
SN | W Strachan | 44 | 2425982.000000 5 Jan 1930 12:00:00.000000 | 2427119.000000 15 Feb 1933 12:00:00.000000 | 14.200 | 9.100 |
SKX | J F Skjellerup | 17 | 2426958.000000 7 Sep 1932 12:00:00.000000 | 2427784.000000 12 Dec 1934 12:00:00.000000 | 12.840 | 8.440 |
FY | R M Fry | 10 | 2427446.000000 8 Jan 1934 12:00:00.000000 | 2428105.500000 30 Oct 1935 00:00:00.000000 | 12.530 | 8.700 |
SF | R C I Shinkfield | 50 | 2427806.500000 4 Jan 1935 00:00:00.000000 | 2440572.200000 16 Dec 1969 16:48:00.000000 | 13.300 | 8.580 |
CO | E H Collinson | 71 | 2427829.500000 27 Jan 1935 00:00:00.000000 | 2433621.500000 6 Dec 1950 00:00:00.000000 | 13.600 | 8.920 |
HL | F M Holborn | 353 | 2428081.500000 6 Oct 1935 00:00:00.000000 | 2437375.300000 16 Mar 1961 19:12:00.000000 | 14.700 | 8.640 |
KT | N F H Knight | 75 | 2428780.700000 4 Sep 1937 04:48:00.000000 | 2432181.400000 26 Dec 1946 21:36:00.000000 | 13.800 | 9.000 |
BZ | J R Bazin | 192 | 2428811.500000 5 Oct 1937 00:00:00.000000 | 2434098.400000 26 Mar 1952 21:36:00.000000 | 13.600 | 8.520 |
UG | R F T Granger | 22 | 2429276.300000 12 Jan 1939 19:12:00.000000 | 2432186.400000 31 Dec 1946 21:36:00.000000 | 13.600 | 9.440 |
CX | H W Cox | 38 | 2429577.500000 10 Nov 1939 00:00:00.000000 | 2431929.400000 18 Apr 1946 21:36:00.000000 | 14.300 | 9.420 |
FR | J Friends | 2 | 2434311.500000 26 Oct 1952 00:00:00.000000 | 2437966.500000 29 Oct 1962 00:00:00.000000 | 11.180 | 11.080 |
AT | L W R W Atcherley | 7 | 2434397.300000 19 Jan 1953 19:12:00.000000 | 2434472.400000 4 Apr 1953 21:36:00.000000 | 12.440 | 9.920 |
LL | R L Lyon | 2 | 2436187.500000 15 Dec 1957 00:00:00.000000 | 2436191.500000 19 Dec 1957 00:00:00.000000 | 12.440 | 11.540 |
MU | C R Munford | 160 | 2436487.500000 11 Oct 1958 00:00:00.000000 | 2441309.500000 24 Dec 1971 00:00:00.000000 | 13.400 | 8.600 |
GL | J S Glasby | 36 | 2437157.600000 11 Aug 1960 02:24:00.000000 | 2437665.300000 31 Dec 1961 19:12:00.000000 | 14.500 | 8.960 |
RO | F A Roper | 28 | 2437551.600000 9 Sep 1961 02:24:00.000000 | 2438377.500000 14 Dec 1963 00:00:00.000000 | 13.400 | 8.780 |
CT | B A Carter | 68 | 2438342.500000 9 Nov 1963 00:00:00.000000 | 2440572.000000 16 Dec 1969 12:00:00.000000 | 13.800 | 9.000 |
HO | A J Hollis | 19 | 2438825.500000 6 Mar 1965 00:00:00.000000 | 2441300.400000 14 Dec 1971 21:36:00.000000 | 12.880 | 9.020 |
CY | J V Carey | 15 | 2439439.700000 10 Nov 1966 04:48:00.000000 | 2439578.300000 28 Mar 1967 19:12:00.000000 | 13.100 | 9.120 |
SS | H W S Smith | 6 | 2441256.500000 1 Nov 1971 00:00:00.000000 | 2441337.400000 20 Jan 1972 21:36:00.000000 | 12.390 | 9.640 |
HWM | H W McGee | 13 | 2452374.381900 9 Apr 2002 21:09:56.160000 | 2453267.633300 19 Sep 2004 03:11:57.120000 | 13.500 | 9.200 |
XXX | 4 | 2420198.500000 7 Mar 1914 00:00:00.000000 | 2420446.500000 10 Nov 1914 00:00:00.000000 | 13.600 | 8.500 | |
AG | S W Albrighton | 4 | 2458165.313000 15 Feb 2018 19:30:43.200000 | 2458477.292000 24 Dec 2018 19:00:28.800000 | 11.800 | 9.300 |
GPF | G Fleming | 29 | 2458869.434500 20 Jan 2020 22:25:40.800000 | 2460325.407240 15 Jan 2024 21:46:25.536000 | 12.967 | 8.989 |