$$\def\|{&}\DeclareMathOperator{\D}{\bigtriangleup\!} \DeclareMathOperator{\d}{\text{d}\!}$$

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

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
1900-01-01T01 Lu c  +280.74
1900-01-03T05 Lu p 0.002426
1900-01-03T06 Lu v  +313.12
1900-01-08T18 Me xa +270.27
1900-01-12T07 Lu +d +23.10
1900-01-12T11 Lu xd +80.08
1900-01-14T05
**
S  +150.03
1900-01-15T03 Me −d −23.86
1900-01-15T07 Lu o  +115.24
1900-01-15T17 Ma c  +295.67
1900-01-19T04 Lu a 0.002713
1900-01-19T14 Lu V  +166.62
1900-01-23T16 Sa −d −22.46
1900-01-26T21 Lu −d −23.02
1900-01-27T00 Lu xa +259.29
1900-01-28T16
**
B  +108.56
1900-01-30T13 Lu c  +310.75
1900-01-31T12 Lu p 0.002396
1900-01-31T13 Lu v  +326.15
1900-02-01T06 Ne −d +22.06
1900-02-01T13 Me a  1.410
1900-02-08T13 Lu +d +22.95
1900-02-08T13 Lu xd +78.47
1900-02-08T23 Me o  +320.05
1900-02-12T18
**
S  +168.03
1900-02-14T01 Lu o  +145.46
1900-02-15T12 Lu a 0.002717
1900-02-15T21 Lu V  +167.15
1900-02-19T05 Me v  +338.81
1900-02-23T04 Lu xa +256.75
1900-02-23T07 Lu −d −22.80
1900-02-25T23 Ma v  +328.09
1900-02-26T13
**
B  +129.53
1900-02-27T09 Me xd +353.61
1900-02-27T10 Ve xd +17.24
1900-02-28T23 Lu c  +340.45
1900-03-01T00 Lu p 0.002384
1900-03-01T00 Lu v  +341.28
1900-03-05T00 Ne Pg +84.21
1900-03-07T14 Lu xd +75.53
1900-03-07T18 Me e  +18.17
1900-03-07T19 Lu +d +22.70
1900-03-13T18
**
S  +199.42
1900-03-14T00 Lu V  +153.80
1900-03-14T13 Lu a 0.002717
1900-03-15T01 Me Rg +9.16
1900-03-15T20 Lu o  +175.30
1900-03-16T13 Me +d +6.69
1900-03-17T05 Ur Rg +252.48
1900-03-18T05 Ur −d −22.25
1900-03-22T05 Lu xa +253.67
1900-03-22T14 Lu −d −22.53
1900-03-24T15 Me c  +4.03
1900-03-24T18 Ju −d −21.20
1900-03-25T11 Me V  +3.29
1900-03-27T08 Ju Rg +250.86
1900-03-27T09
**
B  +146.82
1900-03-28T01 Me p  0.5950
1900-03-29T10 Lu v  +355.92
1900-03-29T11 Lu p 0.002395
1900-03-30T08 Lu c  +61.72
1900-04-03T17 Lu xd +72.69
1900-04-04T03 Lu +d +22.43
1900-04-06T17 Me xa +356.54
1900-04-07T06 Me Pg +356.52
1900-04-10T10 Lu V  +155.25
1900-04-10T14
**
S  +222.73
1900-04-10T22 Lu a 0.002713
1900-04-12T14 Me −d −2.09
1900-04-13T18 Sa Rg +275.03
1900-04-14T13 Lu o  +204.61
1900-04-18T07 Lu xa +251.58
1900-04-18T19 Lu −d −22.33
1900-04-19T14 Sa +d −22.34
1900-04-21T11 Me e  −27.21
1900-04-23T21
**
B  +167.49
1900-04-26T15 Lu v  +7.82
1900-04-26T16 Lu p 0.002423
1900-04-28T10 Ve e  +45.49
1900-04-28T17 Lu c  +38.43
1900-05-01T00 Lu xd +71.18
1900-05-01T12 Lu +d +22.29
1900-05-06T07 Ve +d +26.97
1900-05-08T08 Lu V  +162.85
1900-05-08T14 Lu a 0.002707
1900-05-10T03
**
S  +312.01
1900-05-14T03 Lu o  +233.36
1900-05-15T12 Lu xa +250.95
1900-05-16T01 Lu −d −22.27
1900-05-24T03 Lu v  +10.54
1900-05-24T05 Lu p 0.002456
1900-05-26T08 Me xd +60.87
1900-05-27T03
**
B  +202.01
1900-05-27T07 Ju o  +246.00
1900-05-27T15 Ju V  +245.95
1900-05-28T02 Lu c  +66.79
1900-05-28T10 Lu xd +70.95
1900-05-28T20 Ju p  4.331
1900-05-28T22 Lu +d +22.27
1900-05-29T06 Me a  1.322
1900-05-30T00 Me o  +68.86
1900-05-30T07 Me v  +69.59
1900-05-31T18 Ur V  +250.49
1900-05-31T19 Ur p  18.01
1900-05-31T23 Ur o  +250.48
1900-06-03T21
**
s  +225.22
1900-06-05T08 Lu a 0.002702
1900-06-05T09 Lu V  +171.27
1900-06-10T11 Me +d +25.35
1900-06-11T20 Lu xa +251.02
1900-06-12T08 Lu −d −22.27
1900-06-12T15 Lu o  +261.65
1900-06-16T04
**
S  +314.88
1900-06-16T10 Ve Rg +114.00
1900-06-17T23 Ne c  +86.72
1900-06-18T07 Ne a  30.89
1900-06-18T07 Lu v  +340.97
1900-06-18T08 Ne v  +86.73
1900-06-18T14 Lu p 0.002470
1900-06-19T00 Ve xa +113.86
1900-06-23T05 Sa o  +271.74
1900-06-23T09 Sa p  9.053
1900-06-23T10 Sa V  +271.72
1900-06-24T18 Lu xd +70.96
1900-06-25T06 Lu +d +22.26
1900-06-26T13 Lu c  +94.92
1900-07-01T06
**
B  +175.88
1900-07-03T03 Lu a 0.002704
1900-07-03T10 Lu V  +179.65
1900-07-03T16 Me xa +127.76
1900-07-04T00 Me e  +26.03
1900-07-07T21 Ve p  0.2900
1900-07-07T22 Ve c  +105.79
1900-07-08T01 Ve V  +105.71
1900-07-09T04 Lu xa +250.58
1900-07-09T17 Lu −d −22.24
1900-07-12T01 Lu o  +289.69
1900-07-14T17
**
S  +257.95
1900-07-14T22 Lu v  +331.45
1900-07-15T01 Lu p 0.002443
1900-07-18T00 Me Rg +135.25
1900-07-19T06 Ma xd +75.64
1900-07-21T22 Lu xd +70.05
1900-07-22T13 Lu +d +22.20
1900-07-22T15 Ju +d −19.68
1900-07-24T12 Me −d +12.45
1900-07-26T01 Lu c  +123.07
1900-07-27T15 Ve −d +16.95
1900-07-28T09
**
B  +167.64
1900-07-28T13 Me p  0.5895
1900-07-28T13 Ju Pg +241.01
1900-07-29T14 Ve Pg +97.50
1900-07-30T20 Lu a 0.002709
1900-07-31T00 Me V  +129.21
1900-07-31T09 Lu V  +187.60
1900-07-31T20 Me c  +128.60
1900-08-05T10 Lu xa +248.85
1900-08-05T22 Ne +d +22.24
1900-08-06T03 Lu −d −22.11
1900-08-10T09 Lu o  +317.74
1900-08-10T22
**
S  +240.26
1900-08-11T02 Me Pg +123.80
1900-08-11T20 Lu v  +339.56
1900-08-11T23 Lu p 0.002410
1900-08-13T18 Ma +d +23.76
1900-08-15T18 Ur +d −21.70
1900-08-17T04 Ur Pg +248.45
1900-08-18T00 Lu xd +67.79
1900-08-18T19 Lu +d +22.02
1900-08-19T05 Me e  −18.50
1900-08-19T12 Me +d +17.60
1900-08-22T07 Me xd +131.22
1900-08-24T15 Lu c  +151.47
1900-08-25T22 Ve +d +17.77
1900-08-26T09
**
B  +154.65
1900-08-27T09 Lu a 0.002716
1900-08-28T04 Lu V  +193.61
1900-09-01T13 Lu xa +246.02
1900-09-02T02 Sa Pg +268.43
1900-09-02T12 Lu −d −21.86
1900-09-05T18 Me v  +156.23
1900-09-08T17 Lu o  +346.05
1900-09-08T23
**
S  +204.06
1900-09-09T03 Lu v  +352.53
1900-09-09T06 Lu p 0.002389
1900-09-12T23 Me o  +170.05
1900-09-14T01 Lu xd +64.85
1900-09-15T01 Lu +d +21.75
1900-09-17T06 Ve e  −46.02
1900-09-20T13 Me a  1.400
1900-09-23T07 Lu c  +180.31
1900-09-23T16 Lu a 0.002718
1900-09-24T08 Lu V  +192.57
1900-09-24T17
**
B  +135.23
1900-09-28T14 Lu xa +243.33
1900-09-29T16 Me xa +198.89
1900-09-29T19 Lu −d −21.61
1900-10-02T01 Ne Rg +89.26
1900-10-07T14 Lu v  +7.62
1900-10-07T17 Lu p 0.002386
1900-10-08T01 Lu o  +14.80
1900-10-08T06
**
S  +183.06
1900-10-10T03 Ve xd +152.29
1900-10-11T06 Lu xd +62.59
1900-10-12T09 Lu +d +21.54
1900-10-20T17 Lu V  +182.14
1900-10-20T19 Lu a 0.002716
1900-10-23T01 Lu c  +209.69
1900-10-23T12
**
B  +124.90
1900-10-25T17 Lu xa +241.93
1900-10-27T01 Lu −d −21.46
1900-10-29T14 Me e  +23.61
1900-11-05T01 Lu v  +22.99
1900-11-05T03 Lu p 0.002403
1900-11-06T00
**
S  +172.68
1900-11-06T03 Me −d −23.89
1900-11-06T11 Lu o  +44.09
1900-11-07T15 Lu xd +61.81
1900-11-08T19 Lu +d +21.44
1900-11-09T11 Me Rg +246.28
1900-11-14T14 Sa −d −22.76
1900-11-17T04 Lu V  +184.09
1900-11-17T07 Lu a 0.002711
1900-11-18T06 Me xd +240.08
1900-11-19T11 Me p  0.6772
1900-11-19T20 Me V  +237.97
1900-11-20T00 Me c  +237.76
1900-11-20T21
**
B  +115.32
1900-11-21T19 Lu c  +239.56
1900-11-21T23 Lu xa +241.79
1900-11-23T06 Lu −d −21.44
1900-11-29T09 Me Pg +230.12
1900-11-30T04 Me +d −15.28
1900-12-03T07 Lu v  +35.61
1900-12-03T07 Lu p 0.002437
1900-12-04T01
**
S  +161.89
1900-12-04T15 Ur v  +252.70
1900-12-04T18 Ur c  +252.71
1900-12-04T22 Ur a  20.04
1900-12-05T02 Lu xd +61.81
1900-12-05T22 Lu o  +73.89
1900-12-06T05 Lu +d +21.44
1900-12-07T18 Me e  −20.71
1900-12-11T21 Ju a  6.265
1900-12-13T21 Ju c  +261.97
1900-12-15T01 Lu a 0.002705
1900-12-15T03 Lu V  +191.52
1900-12-15T19 Ju v  +262.41
1900-12-18T21
**
B  +112.06
1900-12-19T07 Lu xa +241.73
1900-12-19T09 Ne p  28.89
1900-12-19T15 Ne o  +87.84
1900-12-19T17 Ne V  +87.84
1900-12-19T20
**
b  +82.03
1900-12-20T14 Lu −d −21.44
1900-12-21T12 Lu c  +269.72
1900-12-26T15 Me xa +260.38
1900-12-28T15 Sa v  +277.37
1900-12-28T20 Sa a  11.05
1900-12-29T01 Sa c  +277.42
1900-12-29T19 Lu v  +24.57
1900-12-30T03 Lu p 0.002472

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Last updated: 2021-07-19