Astronomy Answers: Planetary Phenomena 1979

Astronomy Answers
Planetary Phenomena 1979


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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

[1979] [Q 1979]

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
1979-01-03T04 Lu xd +349.95
1979-01-08T13
** 
S +152.87
1979-01-08T14 Me xa +270.27
1979-01-11T03 Lu +d +18.48
1979-01-12T19 Lu o +112.52
1979-01-14T14 Lu a 0.002716
1979-01-14T23 Me d −23.85
1979-01-15T10 Lu V +143.81
1979-01-17T12 Lu xa +168.55
1979-01-18T00 Ve e −46.85
1979-01-20T00 Ma c +299.87
1979-01-22T11
** 
B +116.52
1979-01-23T09 Ju p 4.292
1979-01-24T03 Ju o +124.04
1979-01-24T03 Ju V +124.03
1979-01-25T11 Lu d −18.42
1979-01-27T17 Lu v +307.21
1979-01-27T18 Lu c +307.75
1979-01-27T21 Lu p 0.002385
1979-01-30T10 Lu xd +347.94
1979-01-31T23 Me a 1.412
1979-02-06T16
** 
S +185.37
1979-02-07T10 Lu +d +18.38
1979-02-09T00 Me o +320.34
1979-02-10T15 Lu a 0.002717
1979-02-10T22 Lu V +134.77
1979-02-11T14 Lu o +142.81
1979-02-11T21 Ve d −20.88
1979-02-13T16 Lu xa +167.49
1979-02-18T21 Me v +338.41
1979-02-19T21
** 
B +149.14
1979-02-21T21 Lu d −18.31
1979-02-23T06 Ur d −17.68
1979-02-23T21 Ur Rg +231.00
1979-02-23T22
** 
s +213.10
1979-02-25T04 Ma v +328.30
1979-02-25T08 Lu v +324.49
1979-02-25T10 Lu p 0.002393
1979-02-26T04 Lu c +337.49
1979-02-26T20 Lu xd +347.46
1979-02-27T06 Me xd +353.55
1979-03-01T01 Sa V +160.56
1979-03-01T01 Sa p 8.338
1979-03-01T05 Sa o +160.54
1979-03-05T09 Ne d −21.69
1979-03-06T17 Lu +d +18.30
1979-03-07T08 Me e +18.14
1979-03-07T14
** 
S +252.05
1979-03-09T20 Lu V +130.83
1979-03-09T22 Lu a 0.002713
1979-03-12T22 Lu xa +167.50
1979-03-13T09 Lu o +172.72
1979-03-14T13 Me Rg +8.52
1979-03-16T03 Me +d +6.42
1979-03-18T11 Ve xa +317.93
1979-03-21T04 Lu d −18.32
1979-03-22T08
** 
B +178.59
1979-03-22T15 Ne Rg +260.50
1979-03-24T01 Me c +3.34
1979-03-24T22 Me V +2.58
1979-03-25T01 Ju +d +21.04
1979-03-25T12 Ju Pg +119.01
1979-03-25T17 Lu p 0.002420
1979-03-25T19 Lu v +340.12
1979-03-26T07 Lu xd +347.46
1979-03-27T11 Me p 0.5973
1979-03-27T15 Lu c +6.83
1979-04-03T01 Lu +d +18.36
1979-04-05T23
** 
S +313.27
1979-04-06T14 Lu V +135.81
1979-04-06T14 Me xa +355.73
1979-04-06T15 Lu a 0.002707
1979-04-06T17 Me Pg +355.73
1979-04-09T05 Lu xa +167.26
1979-04-12T01 Lu o +202.05
1979-04-12T01 Me d −2.32
1979-04-17T10 Lu d −18.44
1979-04-20T21 Me e −27.30
1979-04-21T01
** 
B +198.96
1979-04-22T09 Lu p 0.002455
1979-04-22T14 Lu xd +346.70
1979-04-22T17 Lu v +348.27
1979-04-26T01 Lu c +35.72
1979-04-30T10 Lu +d +18.52
1979-05-04T10 Lu a 0.002702
1979-05-04T12 Lu V +142.86
1979-05-05T18 Sa +d +10.74
1979-05-06T10 Lu xa +165.75
1979-05-09T01 Sa Pg +157.08
1979-05-09T15 Ur V +228.99
1979-05-09T17 Ur o +228.98
1979-05-09T22 Ur p 17.68
1979-05-11T14 Lu o +230.80
1979-05-13T03
** 
S +335.09
1979-05-14T17 Lu d −18.61
1979-05-16T22 Lu v +305.18
1979-05-17T21 Lu p 0.002472
1979-05-19T17 Lu xd +344.58
1979-05-25T12 Lu c +64.16
1979-05-26T05 Me xd +60.94
1979-05-27T20 Lu +d +18.68
1979-05-28T20 Me a 1.322
1979-05-28T23 Me o +66.95
1979-05-30T03 Me v +69.43
1979-05-31T02
** 
B +164.97
1979-06-01T05 Lu a 0.002702
1979-06-01T10 Lu V +149.95
1979-06-02T13 Lu xa +163.07
1979-06-09T23 Lu o +259.04
1979-06-10T02 Ne o +259.12
1979-06-10T03 Ne V +259.12
1979-06-10T09 Me +d +25.34
1979-06-10T12 Ne p 29.27
1979-06-11T01 Lu d −18.73
1979-06-12T14 Lu v +296.79
1979-06-12T15
** 
S +207.61
1979-06-13T04 Lu p 0.002446
1979-06-15T17 Lu xd +341.78
1979-06-24T00 Lu c +92.37
1979-06-24T04 Lu +d +18.74
1979-06-28T22 Lu a 0.002708
1979-06-28T23
** 
B +130.79
1979-06-29T06 Lu V +156.23
1979-06-29T15 Lu xa +160.33
1979-07-03T10 Me e +25.90
1979-07-03T13 Me xa +127.41
1979-07-08T12 Lu d −18.73
1979-07-09T07 Lu o +287.01
1979-07-09T11 Ve +d +23.36
1979-07-09T14 Ve xd +94.57
1979-07-10T16 Lu v +307.38
1979-07-11T00 Lu p 0.002413
1979-07-11T14
** 
S +171.18
1979-07-12T20 Lu xd +339.48
1979-07-17T10 Me Rg +134.46
1979-07-17T12 Ma xd +75.40
1979-07-21T12 Lu +d +18.70
1979-07-23T13 Lu c +120.59
1979-07-24T03 Ur +d −16.59
1979-07-24T04 Me d +12.69
1979-07-25T20 Ur Pg +226.92
1979-07-26T11 Lu a 0.002714
1979-07-26T18
** 
B +111.12
1979-07-26T18 Lu xa +158.74
1979-07-26T21 Lu V +160.26
1979-07-27T22 Me p 0.5873
1979-07-30T09 Me V +128.51
1979-07-31T05 Me c +127.92
1979-08-04T23 Lu d −18.64
1979-08-07T15 Lu o +315.02
1979-08-08T03 Lu v +322.65
1979-08-08T06 Lu p 0.002392
1979-08-08T17
** 
S +154.15
1979-08-09T04 Lu xd +338.54
1979-08-10T13 Me Pg +123.16
1979-08-12T03 Ma +d +23.75
1979-08-12T09 Ne +d −21.47
1979-08-12T21 Ju c +140.04
1979-08-13T05 Ju v +140.12
1979-08-13T11 Ju a 6.354
1979-08-17T18 Lu +d +18.63
1979-08-18T19 Me e −18.57
1979-08-19T04 Me +d +17.66
1979-08-21T17 Ve a 1.729
1979-08-22T05 Lu c +149.04
1979-08-22T05 Me xd +131.08
1979-08-22T18 Lu a 0.002717
1979-08-22T23 Lu V +157.83
1979-08-23T00 Lu xa +158.43
1979-08-24T06
** 
B +97.02
1979-08-24T23 Ve o +151.70
1979-08-29T19 Ne Pg +257.72
1979-08-31T04
** 
b +42.43
1979-09-01T09 Lu d −18.61
1979-09-05T11 Me v +155.95
1979-09-05T15 Lu xd +338.49
1979-09-05T16 Lu p 0.002387
1979-09-05T17 Lu v +339.86
1979-09-05T23 Lu o +343.24
1979-09-06T07
** 
S +136.16
1979-09-10T01 Sa c +167.26
1979-09-10T06 Sa a 10.39
1979-09-10T11 Sa v +167.31
1979-09-13T00 Me o +170.36
1979-09-14T00 Lu +d +18.61
1979-09-18T15 Lu V +150.85
1979-09-18T22 Lu a 0.002716
1979-09-19T06 Lu xa +158.49
1979-09-19T23 Me a 1.398
1979-09-20T21 Lu c +177.81
1979-09-21T15
** 
B +82.25
1979-09-28T16 Lu d −18.67
1979-09-29T12 Me xa +198.96
1979-10-03T01 Lu xd +338.20
1979-10-04T02 Lu p 0.002402
1979-10-04T07 Lu v +357.06
1979-10-05T07 Lu o +78.04
1979-10-05T08
** 
S +128.91
1979-10-11T08 Lu +d +18.73
1979-10-16T00 Lu V +152.35
1979-10-16T08 Lu a 0.002710
1979-10-16T11 Lu xa +157.78
1979-10-19T21
** 
B +81.99
1979-10-20T14 Lu c +207.13
1979-10-21T15 Ve v +223.39
1979-10-25T22 Lu d −18.85
1979-10-29T02 Me e +23.74
1979-10-29T04 Ve xa +232.76
1979-10-30T07 Lu xd +336.66
1979-11-01T07 Lu p 0.002433
1979-11-01T17 Lu v +11.84
1979-11-02T21
** 
S +133.00
1979-11-03T17 Lu o +41.20
1979-11-05T20 Me d −23.84
1979-11-07T17 Lu +d +18.94
1979-11-09T01 Me Rg +245.81
1979-11-12T14 Lu xa +155.50
1979-11-12T20 Lu V +158.53
1979-11-13T02 Lu a 0.002705
1979-11-13T14 Ur a 19.71
1979-11-13T19 Ur c +231.31
1979-11-14T00
** 
s +92.78
1979-11-14T02 Ur v +231.33
1979-11-17T08
** 
B +85.66
1979-11-18T04 Me xd +239.27
1979-11-19T02 Me p 0.6770
1979-11-19T06 Lu c +236.79
1979-11-19T12 Me V +237.48
1979-11-19T16 Me c +237.26
1979-11-22T03
** 
b +91.92
1979-11-22T05 Lu d −19.05
1979-11-26T08 Lu xd +333.82
1979-11-28T11 Lu p 0.002468
1979-11-29T00 Me Pg +229.66
1979-11-29T09 Lu v +16.64
1979-11-29T21 Me +d −15.19
1979-11-30T16
** 
S +134.95
1979-11-30T19 Ve d −24.70
1979-12-03T06 Lu o +70.98
1979-12-05T04 Lu +d +19.11
1979-12-07T07 Me e −20.57
1979-12-09T16 Lu xa +152.35
1979-12-10T20 Lu V +166.43
1979-12-10T22 Lu a 0.002702
1979-12-11T23 Ne a 31.26
1979-12-12T08 Ne c +260.22
1979-12-12T16 Ne v +260.23
1979-12-14T09
** 
B +94.08
1979-12-18T20 Lu c +266.82
1979-12-19T13 Lu d −19.15
1979-12-22T14 Lu v +319.68
1979-12-22T16 Ju d +8.74
1979-12-23T04 Lu p 0.002465
1979-12-23T09 Lu xd +330.96
1979-12-26T02 Ju Rg +160.25
1979-12-26T11 Me xa +260.40
1979-12-29T00
** 
S +153.11
1979-12-31T10 Sa d +3.18



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