Double Star Calculator - Orbit

Orbital Elements for HDS1887
WDS: HDS1887 WDS ID/Discoverer
P: 46.993 Orbital period (years)
a: 0.3 Semi-major axis (arcseconds)
i: 126.5 Inclination (degrees)
Ω: 10.3 Longitude of ascending node (degrees)
T: 2013.099 Epoch of periastron passage (year)
e: 0.0 Eccentricity
ω: 0.0 Longitude of periastron (degrees)
Start-Year: 2001.5035 Year
End-Year: 2048.4965 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for HDS1887
Position: 132832.97-230554.4 Epoch-2000 right ascension and declination
WDS-ID: 13286-2306 WDS designation
Discoverer Code: HDS1887 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: . HD catalog number
Hipparcos number: 65740 Hipparcos catalog number
V1: 12.47 Magnitude of the primary
V2: 12.97 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2018 Date of last observation
Orbit grade: 4 Orbit grade, ranging from :
1 = Definitive
2 = Good
3 = Reliable
4 = Preliminary
5 = Indeterminate
Flags: n Flags
Ephemerides: Ephemerides
Code: Tok2018e Reference

Double Star Orbit for HDS1887



WDS 6th Orbit including measures of HDS1887

-- 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 HDS1887
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.186   259.61
--------------------------
2001.50    0.179    98.33
2001.60    0.179    97.05
2001.70    0.179    95.76
2001.80    0.179    94.48
2001.90    0.179    93.20
2002.00    0.180    91.93
2002.10    0.180    90.66
2002.20    0.181    89.40
2002.30    0.181    88.15
2002.40    0.182    86.90
2002.50    0.182    85.66
2002.60    0.183    84.43
2002.70    0.184    83.21
2002.80    0.184    82.00
2002.90    0.185    80.80
2003.00    0.186    79.61
2003.10    0.187    78.43
2003.20    0.188    77.27
2003.30    0.189    76.11
2003.40    0.190    74.97
2003.50    0.191    73.84
2003.60    0.192    72.72
2003.70    0.193    71.62
2003.80    0.195    70.53
2003.90    0.196    69.46
2004.00    0.197    68.39
2004.10    0.198    67.34
2004.20    0.200    66.31
2004.30    0.201    65.29
2004.40    0.202    64.28
2004.50    0.204    63.29
2004.60    0.205    62.31
2004.70    0.207    61.34
2004.80    0.208    60.39
2004.90    0.210    59.45
2005.00    0.211    58.53
2005.10    0.213    57.62
2005.20    0.214    56.72
2005.30    0.216    55.83
2005.40    0.218    54.96
2005.50    0.219    54.10
2005.60    0.221    53.25
2005.70    0.222    52.41
2005.80    0.224    51.59
2005.90    0.226    50.78
2006.00    0.227    49.98
2006.10    0.229    49.19
2006.20    0.230    48.41
2006.30    0.232    47.64
2006.40    0.234    46.88
2006.50    0.235    46.14
2006.60    0.237    45.40
2006.70    0.238    44.68
2006.80    0.240    43.96
2006.90    0.242    43.25
2007.00    0.243    42.56
2007.10    0.245    41.87
2007.20    0.246    41.19
2007.30    0.248    40.52
2007.40    0.250    39.86
2007.50    0.251    39.20
2007.60    0.253    38.56
2007.70    0.254    37.92
2007.80    0.256    37.29
2007.90    0.257    36.66
2008.00    0.259    36.05
2008.10    0.260    35.44
2008.20    0.262    34.84
2008.30    0.263    34.24
2008.40    0.264    33.65
2008.50    0.266    33.07
2008.60    0.267    32.49
2008.70    0.269    31.92
2008.80    0.270    31.35
2008.90    0.271    30.79
2009.00    0.272    30.24
2009.10    0.274    29.69
2009.20    0.275    29.14
2009.30    0.276    28.60
2009.40    0.277    28.07
2009.50    0.279    27.54
2009.60    0.280    27.01
2009.70    0.281    26.49
2009.80    0.282    25.97
2009.90    0.283    25.45
2010.00    0.284    24.94
2010.10    0.285    24.44
2010.20    0.286    23.93
2010.30    0.287    23.43
2010.40    0.288    22.93
2010.50    0.289    22.44
2010.60    0.289    21.95
2010.70    0.290    21.46
2010.80    0.291    20.98
2010.90    0.292    20.49
2011.00    0.292    20.01
2011.10    0.293    19.53
2011.20    0.294    19.06
2011.30    0.294    18.58
2011.40    0.295    18.11
2011.50    0.296    17.64
2011.60    0.296    17.17
2011.70    0.297    16.71
2011.80    0.297    16.24
2011.90    0.298    15.78
2012.00    0.298    15.32
2012.10    0.298    14.85
2012.20    0.299    14.39
2012.30    0.299    13.93
2012.40    0.299    13.48
2012.50    0.299    13.02
2012.60    0.300    12.56
2012.70    0.300    12.10
2012.80    0.300    11.65
2012.90    0.300    11.19
2013.00    0.300    10.74
2013.10    0.300    10.28
2013.20    0.300     9.82
2013.30    0.300     9.37
2013.40    0.300     8.91
2013.50    0.300     8.46
2013.60    0.300     8.00
2013.70    0.299     7.54
2013.80    0.299     7.08
2013.90    0.299     6.62
2014.00    0.299     6.17
2014.10    0.298     5.70
2014.20    0.298     5.24
2014.30    0.297     4.78
2014.40    0.297     4.32
2014.50    0.297     3.85
2014.60    0.296     3.38
2014.70    0.296     2.92
2014.80    0.295     2.45
2014.90    0.294     1.97
2015.00    0.294     1.50
2015.10    0.293     1.02
2015.20    0.292     0.54
2015.30    0.292     0.06
2015.40    0.291   359.58
2015.50    0.290   359.09
2015.60    0.289   358.61
2015.70    0.288   358.11
2015.80    0.288   357.62
2015.90    0.287   357.12
2016.00    0.286   356.62
2016.10    0.285   356.12
2016.20    0.284   355.61
2016.30    0.283   355.10
2016.40    0.282   354.59
2016.50    0.281   354.07
2016.60    0.280   353.54
2016.70    0.278   353.02
2016.80    0.277   352.49
2016.90    0.276   351.95
2017.00    0.275   351.41
2017.10    0.274   350.86
2017.20    0.272   350.31
2017.30    0.271   349.76
2017.40    0.270   349.20
2017.50    0.268   348.63
2017.60    0.267   348.06
2017.70    0.266   347.48
2017.80    0.264   346.90
2017.90    0.263   346.31
2018.00    0.261   345.71
2018.10    0.260   345.11
2018.20    0.259   344.50
2018.30    0.257   343.88
2018.40    0.256   343.26
2018.50    0.254   342.63
2018.60    0.253   341.99
2018.70    0.251   341.34
2018.80    0.249   340.68
2018.90    0.248   340.02
2019.00    0.246   339.35
2019.10    0.245   338.67
2019.20    0.243   337.98
2019.30    0.242   337.28
2019.40    0.240   336.58
2019.50    0.238   335.86
2019.60    0.237   335.13
2019.70    0.235   334.39
2019.80    0.233   333.65
2019.90    0.232   332.89
2020.00    0.230   332.12
2020.10    0.229   331.34
2020.20    0.227   330.55
2020.30    0.225   329.75
2020.40    0.224   328.94
2020.50    0.222   328.11
2020.60    0.221   327.28
2020.70    0.219   326.43
2020.80    0.217   325.56
2020.90    0.216   324.69
2021.00    0.214   323.80
2021.10    0.213   322.90
2021.20    0.211   321.99
2021.30    0.210   321.06
2021.40    0.208   320.12
2021.50    0.207   319.17
2021.60    0.205   318.20
2021.70    0.204   317.22
2021.80    0.202   316.23
2021.90    0.201   315.22
2022.00    0.200   314.20
2022.10    0.198   313.16
2022.20    0.197   312.11
2022.30    0.196   311.05
2022.40    0.195   309.97
2022.50    0.193   308.88
2022.60    0.192   307.78
2022.70    0.191   306.66
2022.80    0.190   305.53
2022.90    0.189   304.39
2023.00    0.188   303.23
2023.10    0.187   302.06
2023.20    0.186   300.88
2023.30    0.185   299.69
2023.40    0.184   298.49
2023.50    0.184   297.28
2023.60    0.183   296.06
2023.70    0.182   294.83
2023.80    0.182   293.59
2023.90    0.181   292.34
2024.00    0.181   291.08
2024.10    0.180   289.82
2024.20    0.180   288.55
2024.30    0.179   287.28
2024.40    0.179   286.00
2024.50    0.179   284.72
2024.60    0.179   283.44
2024.70    0.179   282.15
2024.80    0.178   280.86
2024.90    0.178   279.58
2025.00    0.179   278.29
2025.10    0.179   277.00
2025.20    0.179   275.72
2025.30    0.179   274.44
2025.40    0.179   273.16
2025.50    0.180   271.89
2025.60    0.180   270.62
2025.70    0.181   269.36
2025.80    0.181   268.10
2025.90    0.182   266.86
2026.00    0.182   265.62
2026.10    0.183   264.39
2026.20    0.184   263.17
2026.30    0.184   261.96
2026.40    0.185   260.76
2026.50    0.186   259.57
2026.60    0.187   258.39
2026.70    0.188   257.22
2026.80    0.189   256.07
2026.90    0.190   254.93
2027.00    0.191   253.80
2027.10    0.192   252.68
2027.20    0.193   251.58
2027.30    0.195   250.49
2027.40    0.196   249.42
2027.50    0.197   248.36
2027.60    0.198   247.31
2027.70    0.200   246.27
2027.80    0.201   245.25
2027.90    0.203   244.25
2028.00    0.204   243.25
2028.10    0.205   242.28
2028.20    0.207   241.31
2028.30    0.208   240.36
2028.40    0.210   239.42
2028.50    0.211   238.50
2028.60    0.213   237.58
2028.70    0.214   236.69
2028.80    0.216   235.80
2028.90    0.218   234.93
2029.00    0.219   234.07
2029.10    0.221   233.22
2029.20    0.222   232.38
2029.30    0.224   231.56
2029.40    0.226   230.75
2029.50    0.227   229.95
2029.60    0.229   229.16
2029.70    0.230   228.38
2029.80    0.232   227.61
2029.90    0.234   226.86
2030.00    0.235   226.11
2030.10    0.237   225.38
2030.20    0.239   224.65
2030.30    0.240   223.94
2030.40    0.242   223.23
2030.50    0.243   222.53
2030.60    0.245   221.84
2030.70    0.247   221.17
2030.80    0.248   220.50
2030.90    0.250   219.83
2031.00    0.251   219.18
2031.10    0.253   218.53
2031.20    0.254   217.90
2031.30    0.256   217.26
2031.40    0.257   216.64
2031.50    0.259   216.03
2031.60    0.260   215.42
2031.70    0.262   214.81
2031.80    0.263   214.22
2031.90    0.265   213.63
2032.00    0.266   213.05
2032.10    0.267   212.47
2032.20    0.269   211.90
2032.30    0.270   211.33
2032.40    0.271   210.77
2032.50    0.273   210.22
2032.60    0.274   209.67
2032.70    0.275   209.12
2032.80    0.276   208.58
2032.90    0.277   208.05
2033.00    0.279   207.52
2033.10    0.280   206.99
2033.20    0.281   206.47
2033.30    0.282   205.95
2033.40    0.283   205.44
2033.50    0.284   204.93
2033.60    0.285   204.42
2033.70    0.286   203.91
2033.80    0.287   203.41
2033.90    0.288   202.92
2034.00    0.289   202.42
2034.10    0.289   201.93
2034.20    0.290   201.44
2034.30    0.291   200.96
2034.40    0.292   200.48
2034.50    0.293   200.00
2034.60    0.293   199.52
2034.70    0.294   199.04
2034.80    0.294   198.57
2034.90    0.295   198.10
2035.00    0.296   197.63
2035.10    0.296   197.16
2035.20    0.297   196.69
2035.30    0.297   196.23
2035.40    0.298   195.76
2035.50    0.298   195.30
2035.60    0.298   194.84
2035.70    0.299   194.38
2035.80    0.299   193.92
2035.90    0.299   193.46
2036.00    0.299   193.00
2036.10    0.300   192.54
2036.20    0.300   192.09
2036.30    0.300   191.63
2036.40    0.300   191.18
2036.50    0.300   190.72
2036.60    0.300   190.26
2036.70    0.300   189.81
2036.80    0.300   189.35
2036.90    0.300   188.90
2037.00    0.300   188.44
2037.10    0.300   187.98
2037.20    0.299   187.53
2037.30    0.299   187.07
2037.40    0.299   186.61
2037.50    0.299   186.15
2037.60    0.298   185.69
2037.70    0.298   185.23
2037.80    0.297   184.76
2037.90    0.297   184.30
2038.00    0.297   183.83
2038.10    0.296   183.37
2038.20    0.296   182.90
2038.30    0.295   182.43
2038.40    0.294   181.96
2038.50    0.294   181.48
2038.60    0.293   181.01
2038.70    0.292   180.53
2038.80    0.292   180.05
2038.90    0.291   179.56
2039.00    0.290   179.08
2039.10    0.289   178.59
2039.20    0.288   178.10
2039.30    0.288   177.60
2039.40    0.287   177.11
2039.50    0.286   176.61
2039.60    0.285   176.10
2039.70    0.284   175.59
2039.80    0.283   175.08
2039.90    0.282   174.57
2040.00    0.281   174.05
2040.10    0.279   173.53
2040.20    0.278   173.00
2040.30    0.277   172.47
2040.40    0.276   171.93
2040.50    0.275   171.39
2040.60    0.274   170.84
2040.70    0.272   170.29
2040.80    0.271   169.74
2040.90    0.270   169.18
2041.00    0.268   168.61
2041.10    0.267   168.04
2041.20    0.266   167.46
2041.30    0.264   166.88
2041.40    0.263   166.29
2041.50    0.261   165.69
2041.60    0.260   165.09
2041.70    0.259   164.48
2041.80    0.257   163.86
2041.90    0.256   163.23
2042.00    0.254   162.60
2042.10    0.253   161.96
2042.20    0.251   161.32
2042.30    0.249   160.66
2042.40    0.248   160.00
2042.50    0.246   159.33
2042.60    0.245   158.65
2042.70    0.243   157.96
2042.80    0.242   157.26
2042.90    0.240   156.55
2043.00    0.238   155.83
2043.10    0.237   155.11
2043.20    0.235   154.37
2043.30    0.233   153.62
2043.40    0.232   152.86
2043.50    0.230   152.09
2043.60    0.229   151.32
2043.70    0.227   150.52
2043.80    0.225   149.72
2043.90    0.224   148.91
2044.00    0.222   148.08
2044.10    0.220   147.25
2044.20    0.219   146.40
2044.30    0.217   145.53
2044.40    0.216   144.66
2044.50    0.214   143.77
2044.60    0.213   142.87
2044.70    0.211   141.96
2044.80    0.210   141.03
2044.90    0.208   140.09
2045.00    0.207   139.14
2045.10    0.205   138.17
2045.20    0.204   137.19
2045.30    0.202   136.19
2045.40    0.201   135.18
2045.50    0.200   134.16
2045.60    0.198   133.13
2045.70    0.197   132.08
2045.80    0.196   131.01
2045.90    0.194   129.93
2046.00    0.193   128.84
2046.10    0.192   127.74
2046.20    0.191   126.62
2046.30    0.190   125.49
2046.40    0.189   124.35
2046.50    0.188   123.19
2046.60    0.187   122.02
2046.70    0.186   120.84
2046.80    0.185   119.65
2046.90    0.184   118.45
2047.00    0.184   117.24
2047.10    0.183   116.01
2047.20    0.182   114.78
2047.30    0.182   113.54
2047.40    0.181   112.30
2047.50    0.180   111.04
2047.60    0.180   109.78
2047.70    0.180   108.51
2047.80    0.179   107.24
2047.90    0.179   105.96
2048.00    0.179   104.68
2048.10    0.179   103.39
2048.20    0.179   102.11
2048.30    0.178   100.82
2048.40    0.178    99.53






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 16:56:36



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