Astronomy Answers: Planetary Phenomena 1950

Astronomy Answers
Planetary Phenomena 1950


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The diagram below is explained further on the page for the year 2000.

1885 1886 1887 1888 1889 1890 1891 1892 1893 1894 1895 1896 1897 1898 1899 1900 1901 1902 1903 1904 1905 1906 1907 1908 1909 1910 1911 1912 1913 1914 1915 1916 1917 1918 1919 1920 1921 1922 1923 1924 1925 1926 1927 1928 1929 1930 1931 1932 1933 1934 1935 1936 1937 1938 1939 1940 1941 1942 1943 1944 1945 1946 1947 1948 1949 1950 1951 1952 1953 1954 1955 1956 1957 1958 1959 1960 1961 1962 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 2042 2043 2044 2045 2046 2047 2048 2049 2050 2051 2052 2053 2054 2055 2056 2057 2058 2059 2060 2061 2062 2063 2064 2065 2066 2067 2068 2069 2070 2071 2072 2073 2074 2075 2076 2077 2078 2079 2080 2081 2082 2083 2084 2085 2086 2087 2088 2089 2090 2091 2092 2093 2094 2095 2096 2097 2098 2099 2100 2101 2102 2103 2104 2105

[1950] [Q 1950]

For an explanation of the above pictures, see the page for the year 2000.

The last table on this page lists a number of noteworthy planetary phenomena during the listed year. The first column ("date") gives the date and hour, in the form year-month-dayThour in the Gregorian calendar, in Universal Time (UT). The second column ("pl") identifies the planet that shows the phenomenon:

pl Planet
Me Mercury
Ve Venus
Ma Mars
Ju Jupiter
Sa Saturn
Ur Uranus
Ne Neptune
Lu Moon

The third column ("*") provides the type of the phenomenon. The fourth column ("AU") shows the value (distance) in Astronomical Units, if applicable. The fifth column ("deg") gives the value of a relevant angle (declination \( δ \), elongation \( E \), conjunction spread \( σ \), or ecliptic longitude \( λ \)) in degrees. Which angle it is for each phenomenon is shown below in column "?". Declinations and ecliptical longitudes are measured relative to the equinox of the date.

 ?  
Explanation
p perigee
a apogee
+dδgreatest northern declination
dδgreatest southern declination
cλconjunction (with the Sun)
oλopposition (relative to the Sun)
eEgreatest elongation
xaλpassage through the ascending node (zero ecliptical latitude)
xdλpassage through the descending node (zero ecliptical latitude)
bσleast conjunction spread (Mercury - Saturn)
Bσleast conjunction spread (Mercury - Neptune)
sσgreatest conjunction spread (Mercury - Saturn)
Sσgreatest conjunction spread (Mercury - Neptune)
Vλbegin eastward (prograde) acceleration
Pgλstationary point: begin eastward (prograde) motion
vλbegin westward (retrograde) acceleration
Rgλstationary point: begin westward (retrograde) motion

The calculations for the planets are based on the VSOP87 model (type A) of Laskar, and the calculations for the Moon are based on the most detailed model from [Meeus]. One position per day was calculated for each celestial object. The hour of the day for each phenomenon was determined by interpolation.

date pl * AU deg
1950-01-01T01 Me e +19.45
1950-01-02T22 Lu +d +28.34
1950-01-03T19 Lu o +103.41
1950-01-05T23 Me xd +303.66
1950-01-07T06
** 
s +147.81
1950-01-08T04 Me Rg +304.12
1950-01-10T01 Ve Rg +318.74
1950-01-10T06 Lu xd +191.10
1950-01-12T17 Lu p 0.002471
1950-01-13T17 Lu v +239.96
1950-01-13T18
** 
B +164.66
1950-01-13T21 Ne d −5.33
1950-01-15T01 Me +d −17.58
1950-01-15T23 Lu d −28.39
1950-01-17T04 Me c +297.02
1950-01-17T12 Me V +296.57
1950-01-17T20 Lu c +297.67
1950-01-18T02 Ne Rg +197.36
1950-01-18T09 Me p 0.6643
1950-01-23T12 Lu xa +9.70
1950-01-25T06 Lu V +30.79
1950-01-25T09 Lu a 0.002702
1950-01-26T22
** 
S +225.03
1950-01-28T15 Ve +d −10.38
1950-01-28T17 Me Pg +288.06
1950-01-29T21 Ve p 0.2698
1950-01-30T06 Lu +d +28.47
1950-01-30T15 Ve V +310.92
1950-01-30T18 Ve c +310.83
1950-02-02T10 Lu o +133.52
1950-02-02T13 Ju a 6.049
1950-02-03T03
** 
b +137.22
1950-02-03T07 Ju c +314.43
1950-02-04T05 Ju v +314.64
1950-02-06T02 Lu v +185.64
1950-02-06T07 Lu xd +188.54
1950-02-06T12 Lu p 0.002462
1950-02-08T01 Ma d −1.34
1950-02-09T03
** 
B +158.03
1950-02-09T05 Me d −20.55
1950-02-10T04 Me e −25.88
1950-02-11T17 Ma Rg +191.04
1950-02-12T05 Lu d −28.54
1950-02-13T08 Me xa +298.90
1950-02-16T10 Lu c +327.72
1950-02-19T16 Lu xa +7.80
1950-02-20T06 Ve Pg +303.10
1950-02-22T05 Lu a 0.002706
1950-02-22T06 Lu V +38.54
1950-02-24T03
** 
S +246.15
1950-02-26T08 Ur +d +23.71
1950-02-26T15 Lu +d +28.62
1950-03-03T22 Lu o +163.30
1950-03-05T14 Lu xd +187.51
1950-03-05T22 Lu v +192.77
1950-03-06T01 Lu p 0.002425
1950-03-06T14 Sa p 8.380
1950-03-06T16 Sa o +166.05
1950-03-06T20 Sa V +166.04
1950-03-07T17
** 
B +182.97
1950-03-09T05 Ur Pg +90.94
1950-03-09T22 Ve d −13.32
1950-03-11T10 Lu d −28.67
1950-03-18T03 Lu c +126.84
1950-03-18T23 Lu xa +7.41
1950-03-21T11
** 
S +272.05
1950-03-21T22 Lu a 0.002712
1950-03-22T00 Lu V +43.79
1950-03-22T04 Me a 1.357
1950-03-22T17 Ma o +182.03
1950-03-23T22 Ma V +181.56
1950-03-25T23 Lu +d +28.70
1950-03-26T18 Ma p 0.6497
1950-03-28T00 Me o +7.68
1950-03-31T12
** 
B +215.80
1950-04-01T15 Me v +17.20
1950-04-02T00 Lu xd +187.46
1950-04-02T08 Lu o +192.55
1950-04-03T08 Lu p 0.002397
1950-04-03T09 Lu v +208.12
1950-04-03T23 Me xd +21.97
1950-04-05T20 Ne o +195.99
1950-04-06T04 Ne V +195.98
1950-04-06T19 Ne p 29.30
1950-04-07T16 Lu d −28.70
1950-04-09T19
** 
S +302.12
1950-04-11T01 Ve e −46.34
1950-04-13T08
** 
s +233.97
1950-04-15T05 Lu xa +7.48
1950-04-16T20 Lu c +26.76
1950-04-18T02 Lu V +41.72
1950-04-18T07 Lu a 0.002717
1950-04-18T14 Ve xa +342.34
1950-04-22T06 Lu +d +28.65
1950-04-22T12 Me e +20.03
1950-04-24T21
** 
B +178.23
1950-04-25T05 Ma +d +5.01
1950-04-29T08 Me +d +22.02
1950-04-29T11 Lu xd +187.16
1950-05-01T17 Lu o +221.25
1950-05-01T18 Lu p 0.002386
1950-05-01T22 Lu v +224.62
1950-05-03T03 Ma Pg +172.01
1950-05-03T04 Me Rg +57.52
1950-05-05T01 Lu d −28.58
1950-05-06T03
** 
S +255.12
1950-05-11T02 Sa +d +8.81
1950-05-12T07 Me xa +54.51
1950-05-12T09 Lu xa +6.76
1950-05-14T06 Me c +53.37
1950-05-14T16 Me V +53.13
1950-05-14T16 Lu V +33.65
1950-05-14T20 Sa Pg +162.58
1950-05-15T10 Lu a 0.002717
1950-05-15T23 Me p 0.5522
1950-05-16T12 Lu c +55.58
1950-05-19T11 Lu +d +28.52
1950-05-20T23
** 
B +164.76
1950-05-26T17 Lu xd +185.67
1950-05-27T00 Me Pg +48.51
1950-05-30T03 Me d +13.82
1950-05-30T04 Lu p 0.002394
1950-05-30T09 Lu v +239.98
1950-05-31T00 Lu o +249.49
1950-06-01T11 Lu d −28.48
1950-06-02T08
** 
S +229.70
1950-06-08T11 Lu xa +4.65
1950-06-09T19 Me e −23.48
1950-06-11T01 Lu V +35.15
1950-06-11T18 Lu a 0.002713
1950-06-15T03 Lu c +83.96
1950-06-15T16 Lu +d +28.44
1950-06-18T13
** 
B +147.83
1950-06-22T02 Ne +d −4.25
1950-06-22T17 Ju +d −9.77
1950-06-22T20 Lu xd +182.98
1950-06-25T16 Ne Pg +194.58
1950-06-26T09 Ur a 19.93
1950-06-26T11 Ju Rg +337.45
1950-06-26T17 Ur v +95.19
1950-06-26T22 Ur c +95.20
1950-06-27T09 Lu p 0.002420
1950-06-27T16 Lu v +252.81
1950-06-28T20 Lu d −28.45
1950-06-29T08 Lu o +277.49
1950-06-30T20
** 
S +194.55
1950-06-30T20 Ma xa +188.20
1950-06-30T22 Me xd +87.61
1950-07-05T13 Lu xa +1.76
1950-07-06T08 Me +d +24.06
1950-07-08T13 Me v +103.78
1950-07-08T20 Lu V +41.13
1950-07-09T09 Lu a 0.002707
1950-07-11T00 Me o +109.01
1950-07-12T20 Me a 1.334
1950-07-12T22 Lu +d +28.46
1950-07-14T17 Lu c +112.15
1950-07-17T08
** 
B +127.56
1950-07-19T21 Lu xd +180.29
1950-07-25T01 Lu p 0.002453
1950-07-25T11 Lu v +259.54
1950-07-26T04 Lu d −28.52
1950-07-26T13 Ve +d +22.68
1950-07-28T16 Lu o +305.49
1950-07-30T10
** 
S +174.61
1950-08-01T17 Lu xa +359.42
1950-08-05T19 Lu V +48.52
1950-08-06T02 Lu a 0.002702
1950-08-08T06 Me xa +160.00
1950-08-09T06 Lu +d +28.60
1950-08-09T18 Ve xd +112.31
1950-08-13T04 Lu c +140.36
1950-08-15T01
** 
B +119.87
1950-08-16T00 Lu xd +178.69
1950-08-19T16 Lu p 0.002471
1950-08-20T08 Lu v +239.99
1950-08-20T15 Me e +27.33
1950-08-22T11 Lu d −28.65
1950-08-25T17 Ju V +332.49
1950-08-25T19 Ju o +332.48
1950-08-25T20 Ju p 3.996
1950-08-27T02 Lu o +333.78
1950-08-28T13
** 
S +168.96
1950-08-29T00 Lu xa +358.39
1950-09-02T19 Lu V +56.37
1950-09-02T21 Lu a 0.002703
1950-09-03T11 Me Rg +182.42
1950-09-05T00 Me d −4.74
1950-09-05T14 Lu +d +28.71
1950-09-11T15 Lu c +168.81
1950-09-12T07 Lu xd +178.34
1950-09-12T09
** 
B +116.80
1950-09-14T07 Me p 0.6398
1950-09-14T19 Lu p 0.002447
1950-09-14T21 Lu v +215.39
1950-09-15T04 Sa v +172.64
1950-09-15T15 Sa c +172.69
1950-09-15T17 Sa a 10.43
1950-09-16T03 Me V +174.58
1950-09-16T19 Me c +173.86
1950-09-18T16 Lu d −28.73
1950-09-25T08 Lu xa +358.37
1950-09-25T16 Lu o +2.52
1950-09-25T18
** 
S +168.27
1950-09-25T23 Me Pg +167.95
1950-09-26T22 Me xd +168.04
1950-09-29T09 Me +d +4.99
1950-09-30T16 Lu a 0.002709
1950-09-30T18 Lu V +64.15
1950-10-02T10 Me e −17.86
1950-10-02T22 Lu +d +28.71
1950-10-08T19 Ur d +23.41
1950-10-09T12 Ne a 31.30
1950-10-09T17 Lu xd +178.37
1950-10-10T11 Ne c +197.10
1950-10-10T14 Ne v +197.10
1950-10-10T18
** 
B +118.26
1950-10-11T01 Lu c +197.68
1950-10-12T16 Lu p 0.002412
1950-10-12T18 Lu v +223.30
1950-10-15T08 Ur Rg +99.49
1950-10-15T22 Lu d −28.68
1950-10-18T11 Me v +195.65
1950-10-21T14 Ju d −13.48
1950-10-22T14 Lu xa +358.21
1950-10-23T17 Ju Pg +327.59
1950-10-25T04
** 
S +170.87
1950-10-25T08 Lu o +31.88
1950-10-28T07 Lu a 0.002715
1950-10-28T13 Lu V +69.73
1950-10-30T05 Lu +d +28.60
1950-10-31T23 Me o +218.37
1950-11-04T05 Me xa +223.63
1950-11-06T00 Ma d −24.76
1950-11-06T02 Lu xd +177.49
1950-11-06T17 Me a 1.444
1950-11-08T20
** 
B +124.17
1950-11-09T11 Lu c +227.00
1950-11-10T00 Lu p 0.002389
1950-11-10T03 Lu v +237.33
1950-11-11T16 Ve a 1.713
1950-11-12T06 Lu d −28.53
1950-11-12T23 Ve o +230.43
1950-11-18T17 Lu xa +356.73
1950-11-24T03 Lu o +61.77
1950-11-24T03
** 
S +184.62
1950-11-24T03 Lu V +62.10
1950-11-24T12 Lu a 0.002717
1950-11-26T10 Lu +d +28.45
1950-11-29T07 Ve xa +250.93
1950-12-02T08
** 
b +100.01
1950-12-03T07 Lu xd +175.02
1950-12-04T19 Me d −25.81
1950-12-08T03
** 
B +138.37
1950-12-08T13 Ve v +262.54
1950-12-08T13 Lu p 0.002385
1950-12-08T15 Lu v +252.98
1950-12-08T21 Lu c +256.75
1950-12-09T16 Lu d −28.43
1950-12-15T04 Me e +20.39
1950-12-15T18 Lu xa +353.80
1950-12-17T11 Ve d −24.10
1950-12-20T18 Lu V +54.35
1950-12-21T14 Lu a 0.002716
1950-12-23T02 Me Rg +288.18
1950-12-23T15 Lu +d +28.40
1950-12-23T20
** 
S +207.15
1950-12-23T21 Me xd +288.10
1950-12-23T22 Lu o +92.04
1950-12-29T05 Ur o +97.44
1950-12-29T12 Ur V +97.43
1950-12-29T17 Ur p 17.90
1950-12-30T08 Lu xd +171.88



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