Astronomy Answers: Planetary Phenomena 1938

Astronomy Answers
Planetary Phenomena 1938


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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

[1938] [Q 1938]

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
1938-01-01T06 Lu c +280.74
1938-01-02T10 Ve d −23.57
1938-01-04T02
** 
B +125.74
1938-01-04T17 Me +d −20.19
1938-01-07T02
** 
s +71.63
1938-01-09T07 Me Pg +269.34
1938-01-12T09 Lu xd +65.15
1938-01-13T06 Lu +d +21.76
1938-01-14T13 Lu p 0.002400
1938-01-14T19 Lu v +101.68
1938-01-15T17 Lu o +115.47
1938-01-15T22 Ur d +14.34
1938-01-17T10
** 
S +174.55
1938-01-17T14 Ur Pg +39.71
1938-01-20T14 Me e −24.26
1938-01-25T11 Lu xa +244.30
1938-01-26T06 Lu V +253.36
1938-01-26T16 Lu d −21.70
1938-01-26T18 Lu a 0.002711
1938-01-28T05 Me d −22.51
1938-01-28T13 Ju a 6.072
1938-01-28T21 Me xa +285.86
1938-01-29T11 Ju c +309.43
1938-01-30T06 Ju v +309.62
1938-01-31T01 Lu c +311.04
1938-02-02T15
** 
B +115.70
1938-02-04T00 Ve o +315.12
1938-02-06T16 Ve a 1.714
1938-02-08T12 Lu xd +62.74
1938-02-09T15 Lu +d +21.58
1938-02-11T18 Lu p 0.002434
1938-02-12T04 Lu v +115.61
1938-02-14T05 Lu o +145.37
1938-02-15T12
** 
S +158.36
1938-02-21T13 Lu xa +241.33
1938-02-23T00 Lu d −21.46
1938-02-23T04 Lu V +260.76
1938-02-23T13 Lu a 0.002705
1938-02-28T23 Me a 1.379
1938-03-01T09 Ma xd +22.44
1938-03-01T17 Lu c +340.99
1938-03-03T15
** 
B +103.27
1938-03-06T23
** 
b +45.52
1938-03-07T13 Lu xd +59.69
1938-03-08T00 Me o +347.28
1938-03-08T21 Lu +d +21.32
1938-03-10T06 Ne V +169.78
1938-03-10T12 Ne o +169.77
1938-03-10T19 Lu p 0.002469
1938-03-11T07 Ne p 29.22
1938-03-11T16 Lu v +118.06
1938-03-14T20 Me v +0.70
1938-03-15T17 Lu o +174.96
1938-03-17T00
** 
S +147.73
1938-03-19T12 Me xd +9.87
1938-03-20T16 Lu xa +238.50
1938-03-22T08 Lu d −21.20
1938-03-23T05 Lu V +268.78
1938-03-23T09 Lu a 0.002702
1938-03-28T19 Sa a 10.46
1938-03-28T19 Sa c +7.97
1938-03-29T01 Sa v +8.00
1938-03-31T06 Lu c +87.75
1938-04-01T11
** 
B +98.83
1938-04-02T05 Me e +18.90
1938-04-03T15 Lu xd +57.57
1938-04-04T11 Lu v +69.67
1938-04-04T16 Lu p 0.002464
1938-04-05T02 Lu +d +21.10
1938-04-10T12 Me +d +16.34
1938-04-11T02 Me Rg +35.60
1938-04-14T06 Lu o +204.15
1938-04-15T03
** 
S +147.45
1938-04-16T21 Lu xa +237.05
1938-04-18T16 Lu d −21.04
1938-04-20T03 Lu V +276.04
1938-04-20T04 Lu a 0.002704
1938-04-20T18 Ve xd +49.35
1938-04-21T10 Me c +31.14
1938-04-22T03 Me V +30.63
1938-04-24T11 Me p 0.5665
1938-04-26T20 Me xa +27.58
1938-04-29T12
** 
B +101.89
1938-04-29T17 Lu c +39.21
1938-04-30T22 Lu xd +56.89
1938-05-02T00 Lu v +72.46
1938-05-02T00 Lu p 0.002430
1938-05-02T09 Lu +d +21.01
1938-05-03T22 Ur v +43.67
1938-05-04T08 Ur c +43.69
1938-05-04T16 Ur a 20.71
1938-05-04T19 Me Pg +25.17
1938-05-09T08 Me d +7.46
1938-05-13T11
** 
S +154.10
1938-05-13T20 Lu o +232.90
1938-05-14T04 Lu xa +236.85
1938-05-15T23 Lu d −21.00
1938-05-17T20 Lu a 0.002710
1938-05-17T21 Lu V +281.15
1938-05-19T02 Me e −25.41
1938-05-26T21 Ve +d +24.85
1938-05-27T18 Ne +d +5.64
1938-05-28T00
** 
B +109.07
1938-05-28T08 Lu xd +56.89
1938-05-29T01 Lu c +67.53
1938-05-29T19 Lu +d +21.00
1938-05-29T20 Ne Pg +168.36
1938-05-30T04 Lu p 0.002402
1938-05-30T06 Lu v +85.64
1938-06-08T04 Ma +d +24.34
1938-06-10T10 Lu xa +236.87
1938-06-11T15
** 
S +163.72
1938-06-12T06 Lu d −21.02
1938-06-12T11 Lu o +261.33
1938-06-14T02 Lu V +280.30
1938-06-14T05 Lu a 0.002715
1938-06-15T11 Me xd +75.78
1938-06-17T08 Ju +d −11.59
1938-06-21T03 Ju Rg +332.25
1938-06-21T12 Me v +88.82
1938-06-21T23 Me o +89.90
1938-06-23T07 Me a 1.325
1938-06-24T18 Lu xd +56.46
1938-06-24T23 Me +d +24.72
1938-06-25T19
** 
B +122.33
1938-06-26T06 Lu +d +21.00
1938-06-27T09 Lu c +95.54
1938-06-27T13 Lu p 0.002388
1938-06-27T17 Lu v +100.81
1938-07-07T14 Lu xa +235.97
1938-07-09T12 Lu d −20.98
1938-07-10T15 Lu V +271.85
1938-07-11T09 Lu a 0.002716
1938-07-11T14
** 
S +189.98
1938-07-12T03 Lu o +289.60
1938-07-22T00 Lu xd +54.73
1938-07-23T17 Lu +d +20.90
1938-07-23T19 Me xa +146.80
1938-07-23T19 Sa +d +4.74
1938-07-24T07 Ma c +121.22
1938-07-24T23
** 
B +146.52
1938-07-25T22 Lu p 0.002394
1938-07-26T03 Lu v +115.46
1938-07-26T15 Lu c +123.47
1938-07-30T10 Sa Rg +18.04
1938-07-31T01 Me e +27.22
1938-08-03T06 Ma a 2.656
1938-08-03T16 Lu xa +233.68
1938-08-05T19 Lu d −20.83
1938-08-06T21 Lu V +271.83
1938-08-07T15 Lu a 0.002713
1938-08-09T18
** 
S +228.68
1938-08-10T08 Ve xa +181.27
1938-08-10T17 Lu o +317.91
1938-08-14T01 Me Rg +162.31
1938-08-17T01 Me d +3.07
1938-08-18T02 Lu xd +51.95
1938-08-20T02 Lu +d +20.71
1938-08-20T12 Ju o +327.29
1938-08-20T17 Ju p 4.013
1938-08-20T18 Ju V +327.25
1938-08-22T17 Ur +d +16.79
1938-08-23T04
** 
B +164.80
1938-08-23T04 Lu p 0.002416
1938-08-23T10 Lu v +128.60
1938-08-23T11 Ur Rg +47.81
1938-08-24T19 Me p 0.6190
1938-08-24T23 Lu c +151.59
1938-08-27T01 Me V +155.13
1938-08-27T20 Me c +154.39
1938-08-30T18 Lu xa +230.76
1938-09-02T03 Lu d −20.59
1938-09-03T15 Lu V +277.38
1938-09-04T05 Lu a 0.002707
1938-09-06T10 Me Pg +148.97
1938-09-06T23
** 
S +260.73
1938-09-09T08 Lu o +346.46
1938-09-09T22 Ve e +46.26
1938-09-11T05 Me +d +11.18
1938-09-11T10 Me xd +150.84
1938-09-12T03
** 
s +218.00
1938-09-13T00 Ne a 31.22
1938-09-13T07 Me e −17.90
1938-09-13T21 Ne c +170.89
1938-09-14T03 Lu xd +49.32
1938-09-14T06 Ne v +170.90
1938-09-16T08 Lu +d +20.47
1938-09-20T00 Lu p 0.002450
1938-09-20T07 Lu v +136.51
1938-09-20T22
** 
B +181.82
1938-09-23T08 Lu c +180.16
1938-09-26T23 Lu xa +228.53
1938-09-29T10 Me v +177.73
1938-09-29T11 Lu d −20.37
1938-10-01T15 Lu V +285.29
1938-10-01T22 Lu a 0.002703
1938-10-07T23 Sa V +14.60
1938-10-08T00 Sa p 8.410
1938-10-08T01 Sa o +14.59
1938-10-08T21 Lu o +15.43
1938-10-09T10
** 
S +327.74
1938-10-10T00 Me o +196.54
1938-10-11T07 Lu xd +47.93
1938-10-13T13 Lu +d +20.30
1938-10-15T19 Lu p 0.002474
1938-10-16T10 Lu v +120.15
1938-10-16T18 Ju d −15.16
1938-10-17T08 Me a 1.428
1938-10-18T16 Ju Pg +322.39
1938-10-19T18 Me xa +212.86
1938-10-22T20 Lu c +209.28
1938-10-24T06 Lu xa +227.74
1938-10-25T17
** 
B +180.75
1938-10-26T19 Lu d −20.26
1938-10-27T18 Ve d −27.01
1938-10-29T17 Lu V +294.19
1938-10-29T18 Lu a 0.002704
1938-10-30T04 Ve Rg +244.94
1938-11-07T10 Lu o +44.87
1938-11-07T15 Lu xd +47.78
1938-11-08T01 Ur p 18.68
1938-11-08T08 Ur o +45.80
1938-11-08T09 Ur V +45.80
1938-11-09T10
** 
S +261.73
1938-11-09T20 Lu +d +20.25
1938-11-10T15 Lu p 0.002449
1938-11-10T17 Lu v +92.07
1938-11-19T18 Ve c +237.28
1938-11-19T20 Ve V +237.24
1938-11-20T06 Ve p 0.2665
1938-11-20T14 Lu xa +227.82
1938-11-21T12 Lu c +239.03
1938-11-23T03 Lu d −20.26
1938-11-23T19
** 
B +169.28
1938-11-24T15 Me d −25.76
1938-11-25T02 Me e +21.72
1938-11-26T14 Lu a 0.002710
1938-11-26T19 Lu V +303.15
1938-12-01T11 Ve xd +231.18
1938-12-04T04 Me Rg +269.77
1938-12-05T01 Lu xd +47.67
1938-12-06T22 Lu o +74.65
1938-12-07T06 Lu +d +20.28
1938-12-07T19
** 
S +247.70
1938-12-08T10 Me xd +268.14
1938-12-08T13 Lu p 0.002412
1938-12-08T15 Lu v +100.24
1938-12-08T18 Sa d +2.06
1938-12-10T07 Ve Pg +229.56
1938-12-13T21 Me c +261.74
1938-12-13T22 Me V +261.70
1938-12-13T23 Me p 0.6776
1938-12-14T08 Sa Pg +11.23
1938-12-17T20 Lu xa +227.38
1938-12-20T11 Lu d −20.29
1938-12-20T18 Ve +d −14.97
1938-12-21T05
** 
B +164.55
1938-12-21T06 Lu c +269.23
1938-12-22T04 Ne d +3.71
1938-12-22T21 Me +d −19.47
1938-12-23T23 Me Pg +253.47
1938-12-24T06 Lu a 0.002716
1938-12-24T16 Lu V +309.87
1938-12-25T10 Ne Rg +173.33



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