Astronomy Answers: Planetary Phenomena 1985

Astronomy Answers
Planetary Phenomena 1985


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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

[1985] [Q 1985]

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
1985-01-03T05 Lu xa +56.64
1985-01-03T19 Me e −22.77
1985-01-06T11 Lu +d +26.58
1985-01-06T13
** 
S +122.07
1985-01-07T02 Lu o +106.73
1985-01-11T08 Lu v +166.70
1985-01-12T04 Lu p 0.002471
1985-01-13T13 Ju a 6.134
1985-01-14T22 Ju c +294.72
1985-01-16T06 Lu xd +235.71
1985-01-16T08 Me xa +276.19
1985-01-16T12 Ju v +295.10
1985-01-18T20
** 
B +86.75
1985-01-19T09 Lu d −26.62
1985-01-19T20 Me d −23.42
1985-01-21T02 Lu c +301.02
1985-01-21T09 Ve xd +348.34
1985-01-22T01 Ve e +47.03
1985-01-27T09 Lu a 0.002705
1985-01-27T18 Lu V +23.05
1985-01-30T09 Lu xa +54.18
1985-02-02T20 Lu +d +26.69
1985-02-04T00
** 
S +139.79
1985-02-05T15 Lu o +136.79
1985-02-05T19 Pl Rg +214.74
1985-02-07T18 Lu v +167.88
1985-02-08T03 Lu p 0.002435
1985-02-11T13 Me a 1.400
1985-02-12T06 Lu xd +232.84
1985-02-15T15 Lu d −26.76
1985-02-15T16
** 
B +107.89
1985-02-19T12 Me o +330.96
1985-02-19T18 Lu c +331.08
1985-02-24T03 Lu a 0.002711
1985-02-24T17 Lu V +30.48
1985-02-26T11 Lu xa +51.04
1985-02-27T07 Sa d −17.56
1985-02-28T02 Me v +347.10
1985-03-02T05 Lu +d +26.90
1985-03-04T09
** 
S +167.13
1985-03-07T00 Me xd +0.02
1985-03-07T02 Lu o +166.48
1985-03-07T11 Sa Rg +238.13
1985-03-08T01 Lu v +181.02
1985-03-08T07 Lu p 0.002402
1985-03-08T21 Ma xd +25.42
1985-03-11T08 Lu xd +229.95
1985-03-13T18 Ve Rg +22.30
1985-03-14T20 Lu d −26.99
1985-03-15T21
** 
B +133.06
1985-03-17T01 Me e +18.33
1985-03-19T05 Ve +d +15.61
1985-03-21T12 Lu c +180.82
1985-03-22T20 Ur Rg +257.99
1985-03-23T14 Lu a 0.002716
1985-03-24T06 Lu V +33.75
1985-03-24T19 Me Rg +18.66
1985-03-25T01 Ur d −22.91
1985-03-25T13 Lu xa +48.83
1985-03-25T18 Me +d +10.40
1985-03-29T01
** 
s +123.03
1985-03-29T13 Lu +d +27.13
1985-03-31T08
** 
S +183.11
1985-04-03T13 Me c +13.77
1985-04-03T17 Ve p 0.2826
1985-04-03T19 Ve V +14.16
1985-04-03T21 Ve c +14.09
1985-04-04T10 Me V +13.06
1985-04-04T23 Ne Rg +273.62
1985-04-05T11 Lu o +195.63
1985-04-05T14 Lu v +197.35
1985-04-05T16
** 
b +122.81
1985-04-05T18 Lu p 0.002386
1985-04-07T00 Me p 0.5850
1985-04-07T15 Lu xd +228.43
1985-04-11T02 Lu d −27.18
1985-04-12T19
** 
B +134.32
1985-04-14T07 Me xa +7.10
1985-04-17T05 Me Pg +6.73
1985-04-19T17 Lu a 0.002718
1985-04-20T00 Lu V +27.77
1985-04-20T05 Lu c +30.07
1985-04-21T18 Lu xa +48.16
1985-04-22T07 Me d +1.46
1985-04-23T11 Pl V +213.35
1985-04-23T11 Pl c +213.35
1985-04-24T22 Pl p 28.80
1985-04-25T00 Ve Pg +6.01
1985-04-25T20 Lu +d +27.24
1985-04-27T22
** 
S +187.69
1985-05-01T11 Me e −26.74
1985-05-03T10 Ne +d −22.24
1985-05-04T04 Lu v +214.32
1985-05-04T05 Lu p 0.002391
1985-05-04T19 Lu o +224.27
1985-05-05T02 Lu xd +228.17
1985-05-07T02 Ve d +4.29
1985-05-08T11 Lu d −27.25
1985-05-09T01
** 
B +148.36
1985-05-12T22 Ve xa +11.48
1985-05-15T17 Sa o +234.83
1985-05-15T21 Sa p 8.924
1985-05-15T22 Sa V +234.82
1985-05-16T21 Lu V +23.12
1985-05-17T00 Lu a 0.002715
1985-05-19T00 Lu xa +48.24
1985-05-19T21 Lu c +58.83
1985-05-23T01 Lu +d +27.22
1985-05-25T01
** 
S +229.50
1985-05-31T23 Ju +d −16.36
1985-06-01T12 Lu xd +228.16
1985-06-01T12 Lu p 0.002413
1985-06-01T15 Lu v +230.03
1985-06-02T23 Me xd +66.71
1985-06-03T02 Pl +d +3.85
1985-06-03T03 Lu o +252.51
1985-06-04T09
** 
B +180.52
1985-06-04T21 Ju Rg +316.97
1985-06-04T21 Lu d −27.20
1985-06-06T14 Ur p 18.07
1985-06-06T18 Ur o +255.99
1985-06-07T00 Ur V +255.98
1985-06-07T11 Me o +76.58
1985-06-07T12 Me a 1.322
1985-06-07T16 Me v +76.97
1985-06-11T04 Ma +d +24.29
1985-06-12T16 Ve e −45.75
1985-06-13T11 Lu V +26.64
1985-06-13T14 Lu a 0.002708
1985-06-15T06 Lu xa +47.90
1985-06-15T20 Me +d +25.12
1985-06-17T07
** 
S +272.39
1985-06-18T11 Lu c +87.18
1985-06-19T07 Lu +d +27.17
1985-06-23T12 Ne V +272.25
1985-06-23T18 Ne o +272.24
1985-06-24T00 Ne p 29.24
1985-06-28T19 Lu xd +227.17
1985-06-29T09 Lu p 0.002445
1985-06-29T18 Lu v +241.13
1985-06-29T20
** 
B +177.85
1985-07-02T06 Lu d −27.17
1985-07-02T12 Lu o +280.54
1985-07-02T20
** 
s +196.57
1985-07-11T06 Me xa +135.27
1985-07-11T07 Lu V +32.65
1985-07-11T07 Lu a 0.002702
1985-07-11T11
** 
S +230.01
1985-07-12T04 Pl Pg +211.91
1985-07-12T10 Lu xa +46.24
1985-07-13T23 Me e +26.54
1985-07-16T03 Sa +d −16.03
1985-07-16T14 Lu +d +27.18
1985-07-17T23 Lu c +115.35
1985-07-18T03 Ma c +115.45
1985-07-25T17 Lu p 0.002471
1985-07-25T18 Sa Pg +231.47
1985-07-25T21
** 
B +153.37
1985-07-25T21 Lu xd +224.90
1985-07-26T00 Lu v +226.61
1985-07-28T00 Me Rg +145.32
1985-07-29T14 Lu d −27.22
1985-07-30T22 Ma a 2.647
1985-07-31T21 Lu o +308.63
1985-08-01T23 Me d +9.23
1985-08-04T11 Ju o +312.03
1985-08-04T18 Ju V +311.99
1985-08-05T02 Ju p 4.067
1985-08-07T06
** 
S +198.89
1985-08-07T14 Me p 0.5991
1985-08-07T21 Ve +d +21.83
1985-08-08T02 Lu a 0.002701
1985-08-08T04 Lu V +39.45
1985-08-08T13 Lu xa +43.46
1985-08-10T01 Me V +138.89
1985-08-10T22 Me c +138.20
1985-08-12T21 Lu +d +27.31
1985-08-16T10 Lu c +143.48
1985-08-19T13 Lu v +188.31
1985-08-20T04 Lu p 0.002456
1985-08-20T22 Me Pg +133.22
1985-08-21T15 Ur +d −22.52
1985-08-21T20
** 
B +138.79
1985-08-21T22 Lu xd +222.10
1985-08-22T22 Ur Pg +253.97
1985-08-25T20 Lu d −27.39
1985-08-27T17 Me +d +15.44
1985-08-28T13 Me e −18.23
1985-08-29T22 Me xd +138.40
1985-08-30T09 Lu o +336.98
1985-09-02T21
** 
S +171.40
1985-09-03T02 Ve xd +127.08
1985-09-04T15 Lu xa +40.79
1985-09-04T20 Lu a 0.002706
1985-09-05T02 Lu V +46.18
1985-09-09T06 Lu +d +27.51
1985-09-12T04 Ne Pg +270.85
1985-09-14T11 Me v +164.21
1985-09-14T19 Lu c +171.92
1985-09-16T11 Lu v +196.55
1985-09-16T19 Lu p 0.002422
1985-09-18T01 Lu xd +219.99
1985-09-18T23
** 
B +107.42
1985-09-22T01 Lu d −27.60
1985-09-22T11 Me o +179.17
1985-09-29T00 Lu o +5.83
1985-09-30T09 Me a 1.410
1985-10-01T07
** 
S +136.11
1985-10-01T19 Lu xa +39.33
1985-10-02T06 Ju d −19.34
1985-10-02T13 Lu a 0.002712
1985-10-02T19 Lu V +51.34
1985-10-03T07 Ju Pg +307.12
1985-10-06T14 Lu +d +27.69
1985-10-07T06 Me xa +204.42
1985-10-14T04 Lu c +200.81
1985-10-14T22 Lu v +211.95
1985-10-15T01 Lu p 0.002395
1985-10-15T09 Lu xd +219.20
1985-10-16T17
** 
B +82.01
1985-10-19T07 Lu d −27.73
1985-10-26T18 Pl a 30.70
1985-10-28T05 Pl v +214.68
1985-10-28T12 Pl o +214.69
1985-10-28T17 Lu o +35.24
1985-10-29T01 Lu xa +39.17
1985-10-29T21 Lu a 0.002716
1985-10-30T00 Lu V +50.18
1985-10-30T03
** 
S +117.34
1985-11-02T21 Lu +d +27.74
1985-11-08T09 Me e +22.98
1985-11-11T21 Lu xd +219.21
1985-11-12T12 Lu p 0.002386
1985-11-12T14 Lu v +230.09
1985-11-12T14 Lu c +230.15
1985-11-13T17
** 
B +67.42
1985-11-13T19 Me d −24.96
1985-11-15T16 Lu d −27.71
1985-11-18T10 Ne d −22.35
1985-11-18T15 Me Rg +255.01
1985-11-22T19 Sa v +240.69
1985-11-22T21 Sa a 10.95
1985-11-23T01 Sa c +240.72
1985-11-25T07 Lu xa +39.17
1985-11-25T11 Lu V +41.11
1985-11-25T21 Me xd +250.56
1985-11-25T22 Lu a 0.002715
1985-11-27T08
** 
S +107.74
1985-11-27T12 Lu o +65.21
1985-11-28T13 Me p 0.6781
1985-11-28T19 Me V +246.75
1985-11-28T21 Me c +246.62
1985-11-30T02 Lu +d +27.68
1985-12-08T11 Me Pg +238.77
1985-12-08T19 Me +d −17.21
1985-12-09T07 Lu xd +218.74
1985-12-10T07 Ur c +258.21
1985-12-10T10 Ur v +258.22
1985-12-10T13 Ur a 20.10
1985-12-11T00 Lu p 0.002398
1985-12-11T06 Lu v +248.16
1985-12-11T09
** 
B +59.40
1985-12-12T00 Lu c +259.96
1985-12-13T03 Lu d −27.66
1985-12-17T09 Me e −21.32
1985-12-17T14 Ve v +257.70
1985-12-22T12 Lu xa +38.06
1985-12-22T20 Lu V +41.97
1985-12-23T07 Lu a 0.002711
1985-12-23T15 Ve xa +265.32
1985-12-24T22 Ne a 31.23
1985-12-25T01 Ne v +273.33
1985-12-25T04 Ne c +273.34
1985-12-25T15
** 
S +104.71
1985-12-27T05 Ve V +269.79
1985-12-27T07 Lu o +95.51
1985-12-27T08 Lu +d +27.62
1985-12-29T18 Pl d +1.67
1985-12-30T15 Ve d −23.66



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