Astronomy Answers: Planetary Phenomena 1909

Astronomy Answers
Planetary Phenomena 1909


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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

[1909] [Q 1909]

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
1909-01-04T06
** 
S +212.75
1909-01-04T12 Lu xa +85.98
1909-01-05T18 Lu +d +24.36
1909-01-06T02 Lu o +105.67
1909-01-06T03 Ne o +105.72
1909-01-06T03 Ne V +105.72
1909-01-06T03 Ne p 28.97
1909-01-07T09 Ur v +287.01
1909-01-07T09 Ur c +287.01
1909-01-08T02 Ur a 20.56
1909-01-09T17 Me v +299.78
1909-01-11T02 Lu a 0.002709
1909-01-11T09 Lu V +169.67
1909-01-19T00 Lu xd +265.65
1909-01-19T07 Ve d −22.94
1909-01-20T01
** 
B +153.00
1909-01-20T03 Lu d −24.38
1909-01-21T12 Lu c +301.37
1909-01-23T01 Lu p 0.002411
1909-01-23T02 Lu v +325.46
1909-01-26T05 Me xd +324.61
1909-01-26T14 Me e +18.45
1909-01-28T18 Ve xa +286.62
1909-01-28T21
** 
s +145.18
1909-01-31T17 Lu xa +85.16
1909-02-02T00 Lu +d +24.39
1909-02-02T03 Me Rg +328.60
1909-02-03T08
** 
S +219.40
1909-02-04T20 Lu o +135.93
1909-02-05T19 Me +d −9.70
1909-02-07T16 Lu a 0.002715
1909-02-08T04 Lu V +175.65
1909-02-11T01 Me c +322.24
1909-02-11T16 Me V +321.55
1909-02-12T17 Ve v +305.24
1909-02-12T20 Ma xa +262.82
1909-02-13T06 Me p 0.6434
1909-02-15T07 Lu xd +263.86
1909-02-16T13 Lu d −24.49
1909-02-18T09
** 
B +149.17
1909-02-19T22 Lu c +331.19
1909-02-20T11 Lu p 0.002388
1909-02-20T12 Lu v +339.82
1909-02-23T16 Me Pg +313.29
1909-02-25T03
** 
b +138.33
1909-02-27T18 Lu xa +82.79
1909-02-28T02 Ju V +159.60
1909-02-28T06 Ju o +159.58
1909-02-28T10 Ju p 4.418
1909-02-28T10 Ma d −23.65
1909-03-01T05 Lu +d +24.57
1909-03-02T21 Me d −15.61
1909-03-03T16
** 
s +138.37
1909-03-04T06
** 
S +211.24
1909-03-05T14 Me xa +317.79
1909-03-06T14 Lu o +165.92
1909-03-06T19 Lu V +168.35
1909-03-06T20 Lu a 0.002717
1909-03-09T04 Me e −27.42
1909-03-13T10 Ma v +281.97
1909-03-14T10 Lu xd +260.88
1909-03-15T21 Lu d −24.72
1909-03-19T22
** 
B +146.87
1909-03-20T23 Lu v +354.87
1909-03-20T23 Lu p 0.002387
1909-03-21T08 Lu c +57.54
1909-03-25T10 Ne Pg +104.31
1909-03-26T19 Lu xa +79.69
1909-03-28T11 Lu +d +24.83
1909-04-02T09 Lu V +160.22
1909-04-02T18 Sa v +13.05
1909-04-02T21 Sa a 10.40
1909-04-02T23 Sa c +13.07
1909-04-02T23 Lu a 0.002716
1909-04-03T16
** 
S +205.17
1909-04-04T06 Ne +d +21.94
1909-04-05T08 Lu o +195.41
1909-04-10T10 Lu xd +258.14
1909-04-12T04 Lu d −24.98
1909-04-18T07 Lu v +8.49
1909-04-18T07 Me a 1.335
1909-04-18T08 Lu p 0.002406
1909-04-18T22
** 
B +142.79
1909-04-19T16 Lu c +29.48
1909-04-20T23 Me o +30.20
1909-04-21T11 Ur +d −22.24
1909-04-23T01 Lu xa +77.42
1909-04-24T04 Me xd +37.04
1909-04-24T13 Me v +37.83
1909-04-24T19 Lu +d +25.06
1909-04-25T07 Ur Rg +291.08
1909-04-25T22
** 
b +132.01
1909-04-27T23 Ve o +37.50
1909-04-28T16 Ju +d +11.07
1909-04-30T03 Lu V +165.74
1909-04-30T12 Lu a 0.002710
1909-04-30T18 Ve a 1.731
1909-05-01T01 Ju Pg +154.53
1909-05-04T12
** 
S +202.88
1909-05-05T00 Lu o +224.35
1909-05-07T13 Lu xd +256.81
1909-05-09T10 Lu d −25.13
1909-05-16T07 Lu v +17.67
1909-05-16T08 Lu p 0.002438
1909-05-18T16
** 
B +144.22
1909-05-19T01 Lu c +57.93
1909-05-19T11 Me +d +25.35
1909-05-19T14
** 
s +133.32
1909-05-20T07 Me e +22.27
1909-05-20T09 Lu xa +76.63
1909-05-21T22 Ve xd +66.98
1909-05-22T05 Lu +d +25.16
1909-05-28T02 Lu V +173.71
1909-05-28T05 Lu a 0.002704
1909-06-01T13 Me xa +87.68
1909-06-02T04 Me Rg +87.70
1909-06-02T17
** 
S +204.24
1909-06-03T13 Lu o +252.78
1909-06-03T20 Lu xd +256.64
1909-06-05T16 Lu d −25.17
1909-06-12T00 Lu v +9.31
1909-06-12T03 Lu p 0.002468
1909-06-12T17 Ve +d +24.24
1909-06-13T11 Me p 0.5519
1909-06-14T05 Me V +83.34
1909-06-14T11 Me c +83.21
1909-06-16T01
** 
B +143.25
1909-06-16T18 Lu xa +76.69
1909-06-16T20
** 
b +130.42
1909-06-17T11 Lu c +86.09
1909-06-18T14 Lu +d +25.17
1909-06-24T12 Me d +18.47
1909-06-25T00 Lu a 0.002702
1909-06-25T03 Lu V +182.00
1909-06-26T04 Me Pg +79.02
1909-07-01T00
** 
S +206.05
1909-07-01T04 Lu xd +256.60
1909-07-03T00 Lu d −25.16
1909-07-03T00 Lu o +280.90
1909-07-07T03 Lu v +339.26
1909-07-07T08 Lu p 0.002461
1909-07-08T01 Me e −20.99
1909-07-09T05 Ne a 30.97
1909-07-09T05 Ne c +106.84
1909-07-09T15 Ne v +106.85
1909-07-10T22 Ur p 18.59
1909-07-11T14 Ur o +289.10
1909-07-11T20 Ur V +289.09
1909-07-14T01 Lu xa +76.35
1909-07-14T02
** 
B +149.36
1909-07-15T21 Lu +d +25.16
1909-07-16T22 Lu c +114.19
1909-07-21T04 Me xd +103.37
1909-07-21T14 Me +d +22.78
1909-07-22T17 Lu a 0.002706
1909-07-23T03 Lu V +190.15
1909-07-28T12 Lu xd +255.61
1909-07-29T01 Sa +d +6.64
1909-07-30T08 Lu d −25.19
1909-07-30T18
** 
S +228.95
1909-07-31T03 Me v +123.39
1909-08-01T09 Lu o +308.94
1909-08-03T12 Lu v +340.65
1909-08-03T16 Lu p 0.002428
1909-08-04T00 Me o +131.45
1909-08-04T20 Sa Rg +23.23
1909-08-08T06 Me a 1.354
1909-08-10T04 Lu xa +74.78
1909-08-12T03 Lu +d +25.23
1909-08-12T16
** 
B +169.44
1909-08-15T11 Lu c +142.48
1909-08-18T20 Ma +d −2.28
1909-08-19T10 Lu a 0.002712
1909-08-20T02 Lu V +197.60
1909-08-22T14 Ma Rg +6.80
1909-08-24T16 Lu xd +253.25
1909-08-26T18 Lu d −25.34
1909-08-28T12 Me xa +175.61
1909-08-30T14
** 
S +293.68
1909-08-30T17 Lu o +337.16
1909-08-31T16 Lu v +351.74
1909-08-31T19 Lu p 0.002399
1909-09-06T05 Lu xa +72.03
1909-09-08T08 Lu +d +25.43
1909-09-10T11 Ve xa +202.82
1909-09-14T03 Lu c +171.16
1909-09-15T21 Lu a 0.002717
1909-09-16T11
** 
s +208.64
1909-09-16T16 Me e +26.44
1909-09-16T17 Lu V +201.85
1909-09-16T19
** 
B +191.80
1909-09-17T06 Ju a 6.445
1909-09-18T01 Ju c +174.99
1909-09-18T04 Ju v +175.01
1909-09-18T07 Ma p 0.3895
1909-09-20T18 Lu xd +250.27
1909-09-22T01 Ma V +1.26
1909-09-23T02 Lu d −25.59
1909-09-23T22 Ma o +0.72
1909-09-23T22 Ur d −22.82
1909-09-26T10 Ur Pg +287.12
1909-09-29T01 Lu o +169.23
1909-09-29T01 Lu v +5.99
1909-09-29T04 Lu p 0.002385
1909-09-29T19 Me d −14.04
1909-09-29T20 Me Rg +207.57
1909-10-02T07
** 
S +301.30
1909-10-03T07 Lu xa +69.25
1909-10-05T14 Lu +d +25.68
1909-10-06T16
** 
b +200.50
1909-10-09T22 Ma d −4.78
1909-10-10T11 Me p 0.6610
1909-10-11T16 Me V +199.25
1909-10-12T03 Me c +198.67
1909-10-12T23 Lu a 0.002718
1909-10-13T05 Sa o +19.76
1909-10-13T06 Sa p 8.351
1909-10-13T06 Sa V +19.76
1909-10-13T07 Lu V +194.30
1909-10-13T20 Lu c +200.35
1909-10-17T03 Me xd +193.57
1909-10-17T05
** 
B +189.47
1909-10-17T20 Lu xd +248.10
1909-10-19T16
** 
s +204.91
1909-10-20T09 Lu d −25.81
1909-10-21T02 Me Pg +192.11
1909-10-22T12 Ne Rg +109.35
1909-10-23T08 Me +d −3.52
1909-10-23T19 Ma Pg +355.45
1909-10-25T07 Ne d +21.35
1909-10-27T13 Lu v +21.63
1909-10-27T16 Lu p 0.002391
1909-10-27T16 Me e −18.42
1909-10-28T10 Lu o +34.86
1909-10-30T15 Lu xa +67.72
1909-10-31T15
** 
S +310.45
1909-11-01T22 Lu +d +25.87
1909-11-08T23 Ve d −26.34
1909-11-09T03 Lu V +188.88
1909-11-09T06 Lu a 0.002714
1909-11-12T14 Lu c +230.08
1909-11-14T00 Lu xd +247.42
1909-11-15T04 Me v +222.60
1909-11-16T15 Lu d −25.91
1909-11-18T00
** 
B +171.15
1909-11-24T12 Me xa +237.45
1909-11-24T23 Lu v +36.54
1909-11-25T01 Lu p 0.002417
1909-11-26T20 Lu o +64.51
1909-11-27T01 Lu xa +67.44
1909-11-29T09 Lu +d +25.91
1909-11-30T18
** 
S +237.55
1909-12-02T11 Ve e +47.25
1909-12-03T00 Me o +250.84
1909-12-03T08 Me a 1.451
1909-12-04T22 Me V +253.89
1909-12-06T21 Lu V +194.20
1909-12-06T21 Lu a 0.002708
1909-12-11T07 Lu xd +247.51
1909-12-12T07 Lu c +260.19
1909-12-13T11 Sa d +4.04
1909-12-13T21 Lu d −25.90
1909-12-14T00 Ma xd +9.24
1909-12-17T07
** 
B +153.80
1909-12-17T13 Me d −25.42
1909-12-19T08 Sa Pg +16.38
1909-12-21T11 Me v +280.02
1909-12-22T20 Lu p 0.002455
1909-12-22T21 Lu v +44.76
1909-12-24T11 Lu xa +67.38
1909-12-26T09 Lu o +94.52
1909-12-26T19 Lu +d +25.89
1909-12-30T13
** 
S +210.92



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