Double Star Calculator - Orbit

Orbital Elements for I402
WDS: I402 WDS ID/Discoverer
P: 26.210 Orbital period (years)
a: 0.171 Semi-major axis (arcseconds)
i: 83.6 Inclination (degrees)
Ω: 177.5 Longitude of ascending node (degrees)
T: 2026.460 Epoch of periastron passage (year)
e: 0.591 Eccentricity
ω: 222.2 Longitude of periastron (degrees)
Start-Year: 2011.895 Year
End-Year: 2038.105 Year
Epoch: 2026.5 Besselian Epoch
 
Further data from the WDS Sixth Catalog of Orbits for I402
Position: 142610.80-452245.3 Epoch-2000 right ascension and declination
WDS-ID: 14262-4523 WDS designation
Discoverer Code: I402 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 126354 HD catalog number
Hipparcos number: 70576 Hipparcos catalog number
V1: 4.93 Magnitude of the primary
V2: 5.55 Magnitude of the secondary
Equinox: Equinox
Date: 2021 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: Tok2021f Reference

Double Star Orbit for I402



WDS 6th Orbit including measures of I402

-- 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 I402
Click to expand/collapse ephemeris: 
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.050     3.83
--------------------------
2011.89    0.219   182.09
2011.99    0.219   182.17
2012.09    0.218   182.24
2012.19    0.217   182.32
2012.29    0.215   182.40
2012.39    0.214   182.47
2012.49    0.213   182.55
2012.59    0.212   182.63
2012.69    0.211   182.71
2012.79    0.210   182.80
2012.89    0.209   182.88
2012.99    0.207   182.96
2013.09    0.206   183.05
2013.19    0.205   183.13
2013.29    0.203   183.22
2013.39    0.202   183.31
2013.49    0.201   183.40
2013.59    0.199   183.49
2013.69    0.198   183.58
2013.79    0.196   183.67
2013.89    0.195   183.77
2013.99    0.193   183.86
2014.09    0.192   183.96
2014.19    0.190   184.06
2014.29    0.188   184.16
2014.39    0.187   184.26
2014.49    0.185   184.37
2014.59    0.183   184.47
2014.69    0.182   184.58
2014.79    0.180   184.69
2014.89    0.178   184.80
2014.99    0.176   184.92
2015.09    0.175   185.04
2015.19    0.173   185.16
2015.29    0.171   185.28
2015.39    0.169   185.40
2015.49    0.167   185.53
2015.59    0.165   185.66
2015.69    0.163   185.80
2015.79    0.161   185.93
2015.89    0.159   186.07
2015.99    0.157   186.22
2016.09    0.155   186.37
2016.19    0.153   186.52
2016.29    0.151   186.68
2016.39    0.149   186.84
2016.49    0.146   187.00
2016.59    0.144   187.17
2016.69    0.142   187.35
2016.79    0.140   187.53
2016.89    0.138   187.72
2016.99    0.135   187.91
2017.09    0.133   188.11
2017.19    0.131   188.32
2017.29    0.128   188.54
2017.39    0.126   188.76
2017.49    0.124   188.99
2017.59    0.121   189.23
2017.69    0.119   189.48
2017.79    0.116   189.74
2017.89    0.114   190.02
2017.99    0.111   190.30
2018.09    0.109   190.60
2018.19    0.106   190.91
2018.29    0.104   191.24
2018.39    0.101   191.58
2018.49    0.099   191.94
2018.59    0.096   192.32
2018.69    0.094   192.72
2018.79    0.091   193.14
2018.89    0.088   193.59
2018.99    0.086   194.06
2019.09    0.083   194.57
2019.19    0.081   195.11
2019.29    0.078   195.68
2019.39    0.075   196.30
2019.49    0.072   196.96
2019.59    0.070   197.68
2019.69    0.067   198.45
2019.79    0.064   199.29
2019.89    0.062   200.19
2019.99    0.059   201.19
2020.09    0.056   202.28
2020.19    0.054   203.47
2020.29    0.051   204.80
2020.39    0.048   206.27
2020.49    0.046   207.92
2020.59    0.043   209.76
2020.69    0.040   211.85
2020.79    0.038   214.21
2020.89    0.035   216.92
2020.99    0.033   220.02
2021.09    0.031   223.60
2021.19    0.028   227.75
2021.29    0.026   232.55
2021.39    0.025   238.09
2021.49    0.023   244.44
2021.59    0.022   251.60
2021.69    0.021   259.49
2021.79    0.021   267.88
2021.89    0.021   276.46
2021.99    0.021   284.85
2022.09    0.022   292.75
2022.19    0.023   299.92
2022.29    0.025   306.29
2022.39    0.026   311.85
2022.49    0.028   316.67
2022.59    0.031   320.83
2022.69    0.033   324.43
2022.79    0.035   327.56
2022.89    0.038   330.29
2022.99    0.040   332.69
2023.09    0.043   334.80
2023.19    0.045   336.68
2023.29    0.048   338.36
2023.39    0.050   339.87
2023.49    0.053   341.24
2023.59    0.055   342.48
2023.69    0.058   343.62
2023.79    0.060   344.66
2023.89    0.062   345.63
2023.99    0.065   346.52
2024.09    0.067   347.36
2024.19    0.069   348.14
2024.29    0.071   348.88
2024.39    0.073   349.58
2024.49    0.075   350.24
2024.59    0.076   350.88
2024.69    0.078   351.48
2024.79    0.079   352.07
2024.89    0.080   352.64
2024.99    0.081   353.20
2025.09    0.082   353.74
2025.19    0.082   354.28
2025.29    0.082   354.81
2025.39    0.082   355.35
2025.49    0.081   355.89
2025.59    0.080   356.44
2025.69    0.079   357.01
2025.79    0.077   357.61
2025.89    0.075   358.23
2025.99    0.072   358.91
2026.09    0.068   359.64
2026.19    0.065     0.45
2026.29    0.060     1.38
2026.39    0.055     2.46
2026.49    0.050     3.76
2026.59    0.045     5.37
2026.69    0.039     7.47
2026.79    0.032    10.37
2026.89    0.026    14.67
2026.99    0.020    21.75
2027.09    0.014    35.17
2027.19    0.010    63.70
2027.29    0.010   107.35
2027.39    0.014   135.83
2027.49    0.020   149.20
2027.59    0.026   156.24
2027.69    0.033   160.49
2027.79    0.039   163.33
2027.89    0.045   165.36
2027.99    0.052   166.89
2028.09    0.058   168.09
2028.19    0.064   169.06
2028.29    0.070   169.87
2028.39    0.076   170.55
2028.49    0.081   171.13
2028.59    0.087   171.64
2028.69    0.092   172.09
2028.79    0.097   172.49
2028.89    0.103   172.85
2028.99    0.107   173.18
2029.09    0.112   173.48
2029.19    0.117   173.76
2029.29    0.121   174.01
2029.39    0.126   174.25
2029.49    0.130   174.47
2029.59    0.134   174.68
2029.69    0.138   174.87
2029.79    0.142   175.06
2029.89    0.146   175.23
2029.99    0.149   175.40
2030.09    0.153   175.56
2030.19    0.156   175.71
2030.29    0.160   175.85
2030.39    0.163   175.99
2030.49    0.166   176.12
2030.59    0.169   176.25
2030.69    0.172   176.38
2030.79    0.175   176.50
2030.89    0.178   176.61
2030.99    0.180   176.73
2031.09    0.183   176.84
2031.19    0.185   176.94
2031.29    0.188   177.05
2031.39    0.190   177.15
2031.49    0.192   177.25
2031.59    0.194   177.34
2031.69    0.197   177.44
2031.79    0.199   177.53
2031.89    0.201   177.62
2031.99    0.202   177.71
2032.09    0.204   177.80
2032.19    0.206   177.88
2032.29    0.208   177.97
2032.39    0.209   178.05
2032.49    0.211   178.13
2032.59    0.212   178.21
2032.69    0.214   178.29
2032.79    0.215   178.37
2032.89    0.216   178.45
2032.99    0.218   178.53
2033.09    0.219   178.60
2033.19    0.220   178.68
2033.29    0.221   178.75
2033.39    0.222   178.82
2033.49    0.223   178.90
2033.59    0.224   178.97
2033.69    0.225   179.04
2033.79    0.226   179.11
2033.89    0.226   179.18
2033.99    0.227   179.25
2034.09    0.228   179.32
2034.19    0.228   179.39
2034.29    0.229   179.46
2034.39    0.229   179.53
2034.49    0.230   179.60
2034.59    0.230   179.67
2034.69    0.231   179.74
2034.79    0.231   179.80
2034.89    0.231   179.87
2034.99    0.232   179.94
2035.09    0.232   180.01
2035.19    0.232   180.07
2035.29    0.232   180.14
2035.39    0.232   180.21
2035.49    0.232   180.27
2035.59    0.232   180.34
2035.69    0.232   180.41
2035.79    0.232   180.47
2035.89    0.232   180.54
2035.99    0.232   180.61
2036.09    0.231   180.68
2036.19    0.231   180.74
2036.29    0.231   180.81
2036.39    0.231   180.88
2036.49    0.230   180.95
2036.59    0.230   181.02
2036.69    0.229   181.08
2036.79    0.229   181.15
2036.89    0.228   181.22
2036.99    0.228   181.29
2037.09    0.227   181.36
2037.19    0.227   181.43
2037.29    0.226   181.50
2037.39    0.225   181.57
2037.49    0.225   181.64
2037.59    0.224   181.72
2037.69    0.223   181.79
2037.79    0.222   181.86
2037.89    0.221   181.94
2037.99    0.220   182.01
2038.09    0.220   182.08



 

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 17:05:33


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