Double Star Calculator - Orbit

Orbital Elements for A1851
WDS: A1851 WDS ID/Discoverer
P: 61.300 Orbital period (years)
a: 0.415 Semi-major axis (arcseconds)
i: 26.0 Inclination (degrees)
Ω: 129.8 Longitude of ascending node (degrees)
T: 1959.300 Epoch of periastron passage (year)
e: 0.252 Eccentricity
ω: 319.5 Longitude of periastron (degrees)
Start-Year: 1994.35 Year
End-Year: 2055.65 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for A1851
Position: 124210.75+262139.5 Epoch-2000 right ascension and declination
WDS-ID: 12422+2622 WDS designation
Discoverer Code: A1851 Discover designation and components
ADS number: 8635 Aitken Double Star catalog
HD number: 110465 HD catalog number
Hipparcos number: 61986 Hipparcos catalog number
V1: 10.09 Magnitude of the primary
V2: 10.08 Magnitude of the secondary
Equinox: Equinox
Date: Date of last observation
Orbit grade: 2 Orbit grade, ranging from :
1 = Definitive
2 = Good
3 = Reliable
4 = Preliminary
5 = Indeterminate
Flags: n Flags
Ephemerides: Ephemerides
Code: Hei1998 Reference

Double Star Orbit for A1851



WDS 6th Orbit including measures of A1851

-- Image from the USNO WDS 6th Orbit Catalog (see Acknowledgements) --


Legend:
Green plus signs:Visual (micrometric) measures
Violet asterisks:Photographic measures
Blue symbols:Various interferometric techniques
Dot-dash line:Indicates the line of nodes

Ephemeris of A1851
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.338   143.95
--------------------------
1994.35    0.504   287.61
1994.45    0.504   287.96
1994.55    0.504   288.30
1994.65    0.504   288.65
1994.75    0.504   289.00
1994.85    0.504   289.34
1994.95    0.504   289.69
1995.05    0.504   290.04
1995.15    0.504   290.38
1995.25    0.503   290.73
1995.35    0.503   291.08
1995.45    0.503   291.42
1995.55    0.503   291.77
1995.65    0.503   292.12
1995.75    0.503   292.47
1995.85    0.502   292.82
1995.95    0.502   293.17
1996.05    0.502   293.51
1996.15    0.502   293.86
1996.25    0.501   294.21
1996.35    0.501   294.56
1996.45    0.501   294.91
1996.55    0.501   295.27
1996.65    0.500   295.62
1996.75    0.500   295.97
1996.85    0.500   296.32
1996.95    0.499   296.67
1997.05    0.499   297.03
1997.15    0.499   297.38
1997.25    0.498   297.73
1997.35    0.498   298.09
1997.45    0.498   298.44
1997.55    0.497   298.80
1997.65    0.497   299.15
1997.75    0.497   299.51
1997.85    0.496   299.87
1997.95    0.496   300.22
1998.05    0.495   300.58
1998.15    0.495   300.94
1998.25    0.494   301.30
1998.35    0.494   301.66
1998.45    0.493   302.02
1998.55    0.493   302.38
1998.65    0.492   302.75
1998.75    0.492   303.11
1998.85    0.491   303.47
1998.95    0.491   303.84
1999.05    0.490   304.20
1999.15    0.490   304.57
1999.25    0.489   304.94
1999.35    0.489   305.31
1999.45    0.488   305.68
1999.55    0.487   306.04
1999.65    0.487   306.42
1999.75    0.486   306.79
1999.85    0.486   307.16
1999.95    0.485   307.53
2000.05    0.484   307.91
2000.15    0.484   308.28
2000.25    0.483   308.66
2000.35    0.482   309.04
2000.45    0.481   309.42
2000.55    0.481   309.80
2000.65    0.480   310.18
2000.75    0.479   310.56
2000.85    0.479   310.94
2000.95    0.478   311.33
2001.05    0.477   311.72
2001.15    0.476   312.10
2001.25    0.475   312.49
2001.35    0.475   312.88
2001.45    0.474   313.27
2001.55    0.473   313.66
2001.65    0.472   314.06
2001.75    0.471   314.45
2001.85    0.470   314.85
2001.95    0.470   315.25
2002.05    0.469   315.65
2002.15    0.468   316.05
2002.25    0.467   316.45
2002.35    0.466   316.86
2002.45    0.465   317.26
2002.55    0.464   317.67
2002.65    0.463   318.08
2002.75    0.462   318.49
2002.85    0.461   318.90
2002.95    0.460   319.32
2003.05    0.459   319.73
2003.15    0.458   320.15
2003.25    0.457   320.57
2003.35    0.456   320.99
2003.45    0.455   321.42
2003.55    0.454   321.84
2003.65    0.453   322.27
2003.75    0.452   322.70
2003.85    0.451   323.13
2003.95    0.450   323.56
2004.05    0.449   324.00
2004.15    0.448   324.44
2004.25    0.447   324.88
2004.35    0.445   325.32
2004.45    0.444   325.76
2004.55    0.443   326.21
2004.65    0.442   326.66
2004.75    0.441   327.11
2004.85    0.440   327.57
2004.95    0.438   328.02
2005.05    0.437   328.48
2005.15    0.436   328.94
2005.25    0.435   329.41
2005.35    0.434   329.87
2005.45    0.432   330.34
2005.55    0.431   330.82
2005.65    0.430   331.29
2005.75    0.429   331.77
2005.85    0.427   332.25
2005.95    0.426   332.73
2006.05    0.425   333.22
2006.15    0.423   333.71
2006.25    0.422   334.20
2006.35    0.421   334.70
2006.45    0.419   335.19
2006.55    0.418   335.70
2006.65    0.417   336.20
2006.75    0.415   336.71
2006.85    0.414   337.22
2006.95    0.413   337.73
2007.05    0.411   338.25
2007.15    0.410   338.77
2007.25    0.409   339.30
2007.35    0.407   339.83
2007.45    0.406   340.36
2007.55    0.404   340.90
2007.65    0.403   341.44
2007.75    0.401   341.98
2007.85    0.400   342.53
2007.95    0.399   343.08
2008.05    0.397   343.64
2008.15    0.396   344.20
2008.25    0.394   344.76
2008.35    0.393   345.33
2008.45    0.391   345.90
2008.55    0.390   346.48
2008.65    0.388   347.06
2008.75    0.387   347.64
2008.85    0.386   348.23
2008.95    0.384   348.83
2009.05    0.383   349.42
2009.15    0.381   350.03
2009.25    0.380   350.64
2009.35    0.378   351.25
2009.45    0.377   351.87
2009.55    0.375   352.49
2009.65    0.374   353.12
2009.75    0.372   353.75
2009.85    0.371   354.39
2009.95    0.369   355.03
2010.05    0.368   355.68
2010.15    0.366   356.33
2010.25    0.365   356.99
2010.35    0.363   357.65
2010.45    0.362   358.32
2010.55    0.360   359.00
2010.65    0.359   359.68
2010.75    0.357     0.36
2010.85    0.356     1.05
2010.95    0.354     1.75
2011.05    0.353     2.45
2011.15    0.352     3.16
2011.25    0.350     3.88
2011.35    0.349     4.60
2011.45    0.347     5.33
2011.55    0.346     6.06
2011.65    0.344     6.80
2011.75    0.343     7.54
2011.85    0.341     8.29
2011.95    0.340     9.05
2012.05    0.339     9.82
2012.15    0.337    10.59
2012.25    0.336    11.36
2012.35    0.335    12.15
2012.45    0.333    12.93
2012.55    0.332    13.73
2012.65    0.331    14.53
2012.75    0.329    15.34
2012.85    0.328    16.16
2012.95    0.327    16.98
2013.05    0.325    17.80
2013.15    0.324    18.64
2013.25    0.323    19.48
2013.35    0.322    20.33
2013.45    0.320    21.18
2013.55    0.319    22.04
2013.65    0.318    22.91
2013.75    0.317    23.78
2013.85    0.316    24.66
2013.95    0.315    25.55
2014.05    0.313    26.44
2014.15    0.312    27.34
2014.25    0.311    28.24
2014.35    0.310    29.15
2014.45    0.309    30.07
2014.55    0.308    30.99
2014.65    0.307    31.92
2014.75    0.306    32.85
2014.85    0.305    33.79
2014.95    0.305    34.74
2015.05    0.304    35.69
2015.15    0.303    36.65
2015.25    0.302    37.61
2015.35    0.301    38.58
2015.45    0.300    39.55
2015.55    0.300    40.53
2015.65    0.299    41.51
2015.75    0.298    42.50
2015.85    0.298    43.49
2015.95    0.297    44.49
2016.05    0.296    45.49
2016.15    0.296    46.49
2016.25    0.295    47.50
2016.35    0.295    48.51
2016.45    0.294    49.52
2016.55    0.294    50.54
2016.65    0.293    51.56
2016.75    0.293    52.59
2016.85    0.292    53.62
2016.95    0.292    54.65
2017.05    0.292    55.68
2017.15    0.291    56.71
2017.25    0.291    57.75
2017.35    0.291    58.79
2017.45    0.291    59.83
2017.55    0.291    60.87
2017.65    0.290    61.91
2017.75    0.290    62.96
2017.85    0.290    64.00
2017.95    0.290    65.04
2018.05    0.290    66.09
2018.15    0.290    67.14
2018.25    0.290    68.18
2018.35    0.290    69.23
2018.45    0.290    70.27
2018.55    0.290    71.31
2018.65    0.291    72.36
2018.75    0.291    73.40
2018.85    0.291    74.44
2018.95    0.291    75.48
2019.05    0.291    76.52
2019.15    0.292    77.55
2019.25    0.292    78.59
2019.35    0.292    79.62
2019.45    0.292    80.65
2019.55    0.293    81.67
2019.65    0.293    82.70
2019.75    0.294    83.72
2019.85    0.294    84.74
2019.95    0.294    85.76
2020.05    0.295    86.77
2020.15    0.295    87.78
2020.25    0.296    88.79
2020.35    0.296    89.79
2020.45    0.297    90.79
2020.55    0.297    91.79
2020.65    0.298    92.78
2020.75    0.298    93.77
2020.85    0.299    94.76
2020.95    0.300    95.74
2021.05    0.300    96.72
2021.15    0.301    97.70
2021.25    0.301    98.67
2021.35    0.302    99.63
2021.45    0.303   100.59
2021.55    0.303   101.55
2021.65    0.304   102.51
2021.75    0.305   103.46
2021.85    0.305   104.40
2021.95    0.306   105.34
2022.05    0.307   106.28
2022.15    0.307   107.21
2022.25    0.308   108.14
2022.35    0.309   109.07
2022.45    0.310   109.99
2022.55    0.310   110.90
2022.65    0.311   111.82
2022.75    0.312   112.72
2022.85    0.312   113.63
2022.95    0.313   114.53
2023.05    0.314   115.42
2023.15    0.315   116.31
2023.25    0.315   117.20
2023.35    0.316   118.08
2023.45    0.317   118.96
2023.55    0.318   119.83
2023.65    0.318   120.70
2023.75    0.319   121.57
2023.85    0.320   122.43
2023.95    0.321   123.29
2024.05    0.321   124.15
2024.15    0.322   125.00
2024.25    0.323   125.84
2024.35    0.323   126.69
2024.45    0.324   127.52
2024.55    0.325   128.36
2024.65    0.326   129.19
2024.75    0.326   130.02
2024.85    0.327   130.84
2024.95    0.328   131.66
2025.05    0.328   132.48
2025.15    0.329   133.29
2025.25    0.330   134.10
2025.35    0.331   134.91
2025.45    0.331   135.71
2025.55    0.332   136.51
2025.65    0.333   137.31
2025.75    0.333   138.10
2025.85    0.334   138.89
2025.95    0.335   139.68
2026.05    0.335   140.46
2026.15    0.336   141.24
2026.25    0.337   142.02
2026.35    0.337   142.80
2026.45    0.338   143.57
2026.55    0.339   144.34
2026.65    0.339   145.10
2026.75    0.340   145.86
2026.85    0.341   146.62
2026.95    0.341   147.38
2027.05    0.342   148.13
2027.15    0.343   148.88
2027.25    0.343   149.63
2027.35    0.344   150.38
2027.45    0.345   151.12
2027.55    0.345   151.86
2027.65    0.346   152.59
2027.75    0.346   153.33
2027.85    0.347   154.06
2027.95    0.348   154.79
2028.05    0.348   155.52
2028.15    0.349   156.24
2028.25    0.350   156.96
2028.35    0.350   157.68
2028.45    0.351   158.40
2028.55    0.351   159.11
2028.65    0.352   159.82
2028.75    0.353   160.53
2028.85    0.353   161.24
2028.95    0.354   161.94
2029.05    0.354   162.64
2029.15    0.355   163.34
2029.25    0.356   164.04
2029.35    0.356   164.73
2029.45    0.357   165.42
2029.55    0.357   166.11
2029.65    0.358   166.80
2029.75    0.359   167.49
2029.85    0.359   168.17
2029.95    0.360   168.85
2030.05    0.360   169.53
2030.15    0.361   170.21
2030.25    0.362   170.88
2030.35    0.362   171.55
2030.45    0.363   172.22
2030.55    0.363   172.89
2030.65    0.364   173.55
2030.75    0.365   174.22
2030.85    0.365   174.88
2030.95    0.366   175.54
2031.05    0.366   176.19
2031.15    0.367   176.85
2031.25    0.368   177.50
2031.35    0.368   178.15
2031.45    0.369   178.80
2031.55    0.369   179.44
2031.65    0.370   180.09
2031.75    0.371   180.73
2031.85    0.371   181.37
2031.95    0.372   182.01
2032.05    0.372   182.64
2032.15    0.373   183.27
2032.25    0.374   183.91
2032.35    0.374   184.53
2032.45    0.375   185.16
2032.55    0.376   185.79
2032.65    0.376   186.41
2032.75    0.377   187.03
2032.85    0.377   187.65
2032.95    0.378   188.26
2033.05    0.379   188.88
2033.15    0.379   189.49
2033.25    0.380   190.10
2033.35    0.381   190.71
2033.45    0.381   191.32
2033.55    0.382   191.92
2033.65    0.383   192.52
2033.75    0.383   193.12
2033.85    0.384   193.72
2033.95    0.385   194.32
2034.05    0.385   194.91
2034.15    0.386   195.50
2034.25    0.387   196.09
2034.35    0.387   196.68
2034.45    0.388   197.27
2034.55    0.389   197.85
2034.65    0.389   198.43
2034.75    0.390   199.01
2034.85    0.391   199.59
2034.95    0.391   200.16
2035.05    0.392   200.74
2035.15    0.393   201.31
2035.25    0.393   201.88
2035.35    0.394   202.45
2035.45    0.395   203.01
2035.55    0.395   203.58
2035.65    0.396   204.14
2035.75    0.397   204.70
2035.85    0.398   205.26
2035.95    0.398   205.81
2036.05    0.399   206.37
2036.15    0.400   206.92
2036.25    0.400   207.47
2036.35    0.401   208.02
2036.45    0.402   208.56
2036.55    0.403   209.10
2036.65    0.403   209.65
2036.75    0.404   210.19
2036.85    0.405   210.73
2036.95    0.405   211.26
2037.05    0.406   211.80
2037.15    0.407   212.33
2037.25    0.408   212.86
2037.35    0.408   213.39
2037.45    0.409   213.91
2037.55    0.410   214.44
2037.65    0.411   214.96
2037.75    0.411   215.48
2037.85    0.412   216.00
2037.95    0.413   216.52
2038.05    0.414   217.03
2038.15    0.414   217.55
2038.25    0.415   218.06
2038.35    0.416   218.57
2038.45    0.417   219.08
2038.55    0.417   219.58
2038.65    0.418   220.09
2038.75    0.419   220.59
2038.85    0.420   221.09
2038.95    0.420   221.59
2039.05    0.421   222.08
2039.15    0.422   222.58
2039.25    0.423   223.07
2039.35    0.423   223.56
2039.45    0.424   224.05
2039.55    0.425   224.54
2039.65    0.426   225.03
2039.75    0.426   225.51
2039.85    0.427   226.00
2039.95    0.428   226.48
2040.05    0.429   226.96
2040.15    0.430   227.43
2040.25    0.430   227.91
2040.35    0.431   228.38
2040.45    0.432   228.86
2040.55    0.433   229.33
2040.65    0.433   229.80
2040.75    0.434   230.26
2040.85    0.435   230.73
2040.95    0.436   231.19
2041.05    0.436   231.66
2041.15    0.437   232.12
2041.25    0.438   232.58
2041.35    0.439   233.04
2041.45    0.439   233.49
2041.55    0.440   233.95
2041.65    0.441   234.40
2041.75    0.442   234.85
2041.85    0.443   235.30
2041.95    0.443   235.75
2042.05    0.444   236.20
2042.15    0.445   236.64
2042.25    0.446   237.09
2042.35    0.446   237.53
2042.45    0.447   237.97
2042.55    0.448   238.41
2042.65    0.449   238.85
2042.75    0.449   239.28
2042.85    0.450   239.72
2042.95    0.451   240.15
2043.05    0.451   240.58
2043.15    0.452   241.02
2043.25    0.453   241.45
2043.35    0.454   241.87
2043.45    0.454   242.30
2043.55    0.455   242.73
2043.65    0.456   243.15
2043.75    0.457   243.57
2043.85    0.457   243.99
2043.95    0.458   244.41
2044.05    0.459   244.83
2044.15    0.459   245.25
2044.25    0.460   245.67
2044.35    0.461   246.08
2044.45    0.462   246.49
2044.55    0.462   246.91
2044.65    0.463   247.32
2044.75    0.464   247.73
2044.85    0.464   248.14
2044.95    0.465   248.54
2045.05    0.466   248.95
2045.15    0.466   249.36
2045.25    0.467   249.76
2045.35    0.468   250.16
2045.45    0.468   250.56
2045.55    0.469   250.96
2045.65    0.470   251.36
2045.75    0.470   251.76
2045.85    0.471   252.16
2045.95    0.472   252.55
2046.05    0.472   252.95
2046.15    0.473   253.34
2046.25    0.474   253.74
2046.35    0.474   254.13
2046.45    0.475   254.52
2046.55    0.475   254.91
2046.65    0.476   255.30
2046.75    0.477   255.69
2046.85    0.477   256.07
2046.95    0.478   256.46
2047.05    0.478   256.84
2047.15    0.479   257.23
2047.25    0.480   257.61
2047.35    0.480   257.99
2047.45    0.481   258.37
2047.55    0.481   258.75
2047.65    0.482   259.13
2047.75    0.482   259.51
2047.85    0.483   259.89
2047.95    0.484   260.26
2048.05    0.484   260.64
2048.15    0.485   261.02
2048.25    0.485   261.39
2048.35    0.486   261.76
2048.45    0.486   262.14
2048.55    0.487   262.51
2048.65    0.487   262.88
2048.75    0.488   263.25
2048.85    0.488   263.62
2048.95    0.489   263.99
2049.05    0.489   264.35
2049.15    0.490   264.72
2049.25    0.490   265.09
2049.35    0.491   265.45
2049.45    0.491   265.82
2049.55    0.491   266.18
2049.65    0.492   266.55
2049.75    0.492   266.91
2049.85    0.493   267.27
2049.95    0.493   267.64
2050.05    0.494   268.00
2050.15    0.494   268.36
2050.25    0.494   268.72
2050.35    0.495   269.08
2050.45    0.495   269.44
2050.55    0.496   269.79
2050.65    0.496   270.15
2050.75    0.496   270.51
2050.85    0.497   270.87
2050.95    0.497   271.22
2051.05    0.497   271.58
2051.15    0.498   271.93
2051.25    0.498   272.29
2051.35    0.498   272.64
2051.45    0.499   273.00
2051.55    0.499   273.35
2051.65    0.499   273.70
2051.75    0.500   274.06
2051.85    0.500   274.41
2051.95    0.500   274.76
2052.05    0.500   275.11
2052.15    0.501   275.46
2052.25    0.501   275.81
2052.35    0.501   276.16
2052.45    0.501   276.51
2052.55    0.502   276.86
2052.65    0.502   277.21
2052.75    0.502   277.56
2052.85    0.502   277.91
2052.95    0.502   278.26
2053.05    0.503   278.61
2053.15    0.503   278.96
2053.25    0.503   279.30
2053.35    0.503   279.65
2053.45    0.503   280.00
2053.55    0.503   280.35
2053.65    0.504   280.69
2053.75    0.504   281.04
2053.85    0.504   281.39
2053.95    0.504   281.73
2054.05    0.504   282.08
2054.15    0.504   282.43
2054.25    0.504   282.77
2054.35    0.504   283.12
2054.45    0.504   283.46
2054.55    0.504   283.81
2054.65    0.504   284.16
2054.75    0.504   284.50
2054.85    0.504   284.85
2054.95    0.504   285.19
2055.05    0.504   285.54
2055.15    0.504   285.88
2055.25    0.504   286.23
2055.35    0.504   286.58
2055.45    0.504   286.92
2055.55    0.504   287.27
2055.65    0.504   287.61






Disclaimer
This result is provided without warranty. For all terms, see the Full Disclaimer. Copyright (C) 2025. Unless otherwise noted, all output generated by the Double Star Calculator including orbit diagrams, ephemerides, and analytical reports is licensed under CC BY 4.0.


Acknowledgements
The Double Star Calculator - Orbital Elements makes use of the Washington Double Star Sixth Catalog of Orbits of Visual Binary Stars, maintained at the U.S. Naval Observatory.


Report Information
Double Star Calculator: Version 1.2 ($Rev: 2397 $)
Report created: 2026-06-25 16:48:58



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