Double Star Calculator - Orbit

Orbital Elements for HDS1281
WDS: HDS1281 WDS ID/Discoverer
P: 25.800 Orbital period (years)
a: 0.133 Semi-major axis (arcseconds)
i: 140.9 Inclination (degrees)
Ω: 40.8 Longitude of ascending node (degrees)
T: 2022.200 Epoch of periastron passage (year)
e: 0.5 Eccentricity
ω: 118.3 Longitude of periastron (degrees)
Start-Year: 2012.1 Year
End-Year: 2037.9 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for HDS1281
Position: 085125.62-504645.8 Epoch-2000 right ascension and declination
WDS-ID: 08514-5047 WDS designation
Discoverer Code: HDS1281 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: . HD catalog number
Hipparcos number: . Hipparcos catalog number
V1: 9.48 Magnitude of the primary
V2: 9.90 Magnitude of the secondary
Equinox: Equinox
Date: 2018 Date of last observation
Orbit grade: 3 Orbit grade, ranging from :
1 = Definitive
2 = Good
3 = Reliable
4 = Preliminary
5 = Indeterminate
Flags: Flags
Ephemerides: Ephemerides
Code: Tok2019c Reference

Double Star Orbit for HDS1281



WDS 6th Orbit including measures of HDS1281

-- 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 HDS1281
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.111   170.60
--------------------------
2012.10    0.171    79.88
2012.20    0.171    79.32
2012.30    0.171    78.75
2012.40    0.171    78.19
2012.50    0.171    77.62
2012.60    0.171    77.06
2012.70    0.171    76.49
2012.80    0.171    75.92
2012.90    0.171    75.35
2013.00    0.171    74.79
2013.10    0.170    74.21
2013.20    0.170    73.64
2013.30    0.170    73.07
2013.40    0.170    72.50
2013.50    0.169    71.92
2013.60    0.169    71.34
2013.70    0.169    70.76
2013.80    0.169    70.18
2013.90    0.168    69.59
2014.00    0.168    69.01
2014.10    0.167    68.42
2014.20    0.167    67.82
2014.30    0.167    67.23
2014.40    0.166    66.63
2014.50    0.166    66.02
2014.60    0.165    65.42
2014.70    0.165    64.81
2014.80    0.164    64.19
2014.90    0.163    63.58
2015.00    0.163    62.95
2015.10    0.162    62.33
2015.20    0.162    61.69
2015.30    0.161    61.05
2015.40    0.160    60.41
2015.50    0.159    59.76
2015.60    0.159    59.10
2015.70    0.158    58.44
2015.80    0.157    57.77
2015.90    0.156    57.10
2016.00    0.155    56.41
2016.10    0.154    55.72
2016.20    0.153    55.02
2016.30    0.152    54.31
2016.40    0.151    53.59
2016.50    0.150    52.86
2016.60    0.149    52.12
2016.70    0.148    51.36
2016.80    0.147    50.60
2016.90    0.146    49.83
2017.00    0.144    49.04
2017.10    0.143    48.23
2017.20    0.142    47.42
2017.30    0.140    46.58
2017.40    0.139    45.73
2017.50    0.138    44.87
2017.60    0.136    43.98
2017.70    0.135    43.07
2017.80    0.133    42.15
2017.90    0.131    41.20
2018.00    0.130    40.23
2018.10    0.128    39.23
2018.20    0.126    38.20
2018.30    0.125    37.15
2018.40    0.123    36.06
2018.50    0.121    34.95
2018.60    0.119    33.79
2018.70    0.117    32.60
2018.80    0.115    31.36
2018.90    0.113    30.09
2019.00    0.111    28.76
2019.10    0.109    27.38
2019.20    0.106    25.94
2019.30    0.104    24.44
2019.40    0.102    22.88
2019.50    0.099    21.24
2019.60    0.097    19.52
2019.70    0.095    17.72
2019.80    0.092    15.82
2019.90    0.090    13.81
2020.00    0.087    11.69
2020.10    0.085     9.44
2020.20    0.082     7.05
2020.30    0.080     4.51
2020.40    0.077     1.80
2020.50    0.074   358.91
2020.60    0.072   355.81
2020.70    0.069   352.49
2020.80    0.067   348.93
2020.90    0.065   345.11
2021.00    0.063   341.02
2021.10    0.061   336.65
2021.20    0.059   331.99
2021.30    0.057   327.04
2021.40    0.056   321.82
2021.50    0.055   316.36
2021.60    0.054   310.70
2021.70    0.053   304.89
2021.80    0.053   299.01
2021.90    0.053   293.11
2022.00    0.054   287.28
2022.10    0.054   281.57
2022.20    0.055   276.05
2022.30    0.057   270.74
2022.40    0.058   265.67
2022.50    0.060   260.86
2022.60    0.061   256.32
2022.70    0.063   252.02
2022.80    0.065   247.97
2022.90    0.067   244.14
2023.00    0.069   240.53
2023.10    0.071   237.11
2023.20    0.072   233.87
2023.30    0.074   230.79
2023.40    0.076   227.86
2023.50    0.078   225.07
2023.60    0.080   222.39
2023.70    0.081   219.83
2023.80    0.083   217.37
2023.90    0.084   214.99
2024.00    0.086   212.71
2024.10    0.087   210.50
2024.20    0.089   208.35
2024.30    0.090   206.28
2024.40    0.091   204.26
2024.50    0.093   202.30
2024.60    0.094   200.39
2024.70    0.095   198.53
2024.80    0.096   196.71
2024.90    0.097   194.93
2025.00    0.098   193.19
2025.10    0.099   191.49
2025.20    0.100   189.82
2025.30    0.101   188.19
2025.40    0.102   186.58
2025.50    0.103   185.01
2025.60    0.104   183.46
2025.70    0.105   181.94
2025.80    0.106   180.44
2025.90    0.107   178.97
2026.00    0.107   177.52
2026.10    0.108   176.10
2026.20    0.109   174.69
2026.30    0.110   173.31
2026.40    0.111   171.94
2026.50    0.111   170.60
2026.60    0.112   169.27
2026.70    0.113   167.97
2026.80    0.114   166.68
2026.90    0.115   165.40
2027.00    0.115   164.15
2027.10    0.116   162.91
2027.20    0.117   161.68
2027.30    0.118   160.48
2027.40    0.118   159.28
2027.50    0.119   158.10
2027.60    0.120   156.94
2027.70    0.120   155.79
2027.80    0.121   154.65
2027.90    0.122   153.53
2028.00    0.123   152.42
2028.10    0.123   151.33
2028.20    0.124   150.24
2028.30    0.125   149.17
2028.40    0.126   148.11
2028.50    0.126   147.07
2028.60    0.127   146.03
2028.70    0.128   145.01
2028.80    0.128   144.00
2028.90    0.129   143.00
2029.00    0.130   142.01
2029.10    0.131   141.03
2029.20    0.131   140.06
2029.30    0.132   139.10
2029.40    0.133   138.15
2029.50    0.133   137.21
2029.60    0.134   136.29
2029.70    0.135   135.37
2029.80    0.135   134.46
2029.90    0.136   133.56
2030.00    0.137   132.67
2030.10    0.138   131.79
2030.20    0.138   130.91
2030.30    0.139   130.05
2030.40    0.140   129.19
2030.50    0.140   128.35
2030.60    0.141   127.51
2030.70    0.142   126.67
2030.80    0.142   125.85
2030.90    0.143   125.04
2031.00    0.144   124.23
2031.10    0.144   123.43
2031.20    0.145   122.63
2031.30    0.146   121.85
2031.40    0.146   121.07
2031.50    0.147   120.30
2031.60    0.148   119.53
2031.70    0.148   118.77
2031.80    0.149   118.02
2031.90    0.149   117.27
2032.00    0.150   116.53
2032.10    0.151   115.80
2032.20    0.151   115.07
2032.30    0.152   114.35
2032.40    0.153   113.64
2032.50    0.153   112.93
2032.60    0.154   112.22
2032.70    0.154   111.52
2032.80    0.155   110.83
2032.90    0.155   110.14
2033.00    0.156   109.45
2033.10    0.157   108.77
2033.20    0.157   108.10
2033.30    0.158   107.43
2033.40    0.158   106.76
2033.50    0.159   106.10
2033.60    0.159   105.45
2033.70    0.160   104.79
2033.80    0.160   104.14
2033.90    0.161   103.50
2034.00    0.161   102.86
2034.10    0.162   102.22
2034.20    0.162   101.59
2034.30    0.163   100.96
2034.40    0.163   100.34
2034.50    0.163    99.71
2034.60    0.164    99.09
2034.70    0.164    98.48
2034.80    0.165    97.87
2034.90    0.165    97.26
2035.00    0.166    96.65
2035.10    0.166    96.05
2035.20    0.166    95.44
2035.30    0.167    94.85
2035.40    0.167    94.25
2035.50    0.167    93.66
2035.60    0.168    93.06
2035.70    0.168    92.48
2035.80    0.168    91.89
2035.90    0.169    91.30
2036.00    0.169    90.72
2036.10    0.169    90.14
2036.20    0.169    89.56
2036.30    0.170    88.98
2036.40    0.170    88.41
2036.50    0.170    87.83
2036.60    0.170    87.26
2036.70    0.170    86.69
2036.80    0.171    86.11
2036.90    0.171    85.55
2037.00    0.171    84.98
2037.10    0.171    84.41
2037.20    0.171    83.84
2037.30    0.171    83.27
2037.40    0.171    82.71
2037.50    0.171    82.14
2037.60    0.171    81.58
2037.70    0.171    81.01
2037.80    0.171    80.45
2037.90    0.171    79.88






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 16:11:51



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