Double Star Calculator - Orbit

Orbital Elements for HDS2226

WDS:	HDS2226	WDS ID/Discoverer
P:	30.660	Orbital period (years)
a:	0.1151	Semi-major axis (arcseconds)
i:	143.4	Inclination (degrees)
Ω:	0.7	Longitude of ascending node (degrees)
T:	2010.960	Epoch of periastron passage (year)
e:	0.7	Eccentricity
ω:	134.8	Longitude of periastron (degrees)
Start-Year:	2009.67	Year
End-Year:	2040.33	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HDS2226
Position:	154803.31-251256.0	Epoch-2000 right ascension and declination
WDS-ID:	15481-2513	WDS designation
Discoverer Code:	HDS2226	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	141091	HD catalog number
Hipparcos number:	77399	Hipparcos catalog number
V1:	7.60	Magnitude of the primary
V2:	8.49	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2024	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:	Tok2024b	Reference

Double Star Orbit for HDS2226

WDS 6th Orbit including measures of HDS2226

-- 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 HDS2226

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.178    39.06
--------------------------
2009.67    0.049   316.96
2009.77    0.046   313.04
2009.87    0.044   308.63
2009.97    0.041   303.66
2010.07    0.039   298.03
2010.17    0.036   291.66
2010.27    0.034   284.46
2010.37    0.032   276.40
2010.47    0.031   267.53
2010.57    0.030   257.98
2010.67    0.030   248.01
2010.77    0.030   237.94
2010.87    0.030   228.10
2010.97    0.031   218.75
2011.07    0.033   210.04
2011.17    0.034   202.03
2011.27    0.036   194.71
2011.37    0.037   188.01
2011.47    0.039   181.88
2011.57    0.041   176.25
2011.67    0.042   171.05
2011.77    0.044   166.23
2011.87    0.045   161.74
2011.97    0.047   157.55
2012.07    0.048   153.62
2012.17    0.050   149.92
2012.27    0.051   146.44
2012.37    0.053   143.15
2012.47    0.054   140.04
2012.57    0.056   137.09
2012.67    0.057   134.28
2012.77    0.059   131.62
2012.87    0.060   129.08
2012.97    0.061   126.66
2013.07    0.063   124.35
2013.17    0.064   122.14
2013.27    0.066   120.03
2013.37    0.067   118.01
2013.47    0.069   116.07
2013.57    0.070   114.21
2013.67    0.071   112.42
2013.77    0.073   110.70
2013.87    0.074   109.05
2013.97    0.076   107.46
2014.07    0.077   105.93
2014.17    0.078   104.45
2014.27    0.080   103.02
2014.37    0.081   101.64
2014.47    0.082   100.31
2014.57    0.084    99.02
2014.67    0.085    97.77
2014.77    0.087    96.56
2014.87    0.088    95.39
2014.97    0.089    94.25
2015.07    0.091    93.15
2015.17    0.092    92.07
2015.27    0.093    91.03
2015.37    0.095    90.02
2015.47    0.096    89.04
2015.57    0.097    88.08
2015.67    0.098    87.14
2015.77    0.100    86.23
2015.87    0.101    85.35
2015.97    0.102    84.48
2016.07    0.103    83.64
2016.17    0.105    82.81
2016.27    0.106    82.01
2016.37    0.107    81.22
2016.47    0.108    80.45
2016.57    0.109    79.70
2016.67    0.111    78.97
2016.77    0.112    78.25
2016.87    0.113    77.54
2016.97    0.114    76.85
2017.07    0.115    76.17
2017.17    0.116    75.51
2017.27    0.118    74.86
2017.37    0.119    74.22
2017.47    0.120    73.59
2017.57    0.121    72.98
2017.67    0.122    72.37
2017.77    0.123    71.78
2017.87    0.124    71.19
2017.97    0.125    70.62
2018.07    0.126    70.06
2018.17    0.127    69.50
2018.27    0.128    68.96
2018.37    0.129    68.42
2018.47    0.130    67.89
2018.57    0.131    67.37
2018.67    0.132    66.86
2018.77    0.133    66.35
2018.87    0.134    65.85
2018.97    0.135    65.36
2019.07    0.136    64.88
2019.17    0.137    64.40
2019.27    0.138    63.93
2019.37    0.139    63.46
2019.47    0.140    63.00
2019.57    0.141    62.55
2019.67    0.142    62.10
2019.77    0.142    61.66
2019.87    0.143    61.22
2019.97    0.144    60.79
2020.07    0.145    60.37
2020.17    0.146    59.94
2020.27    0.147    59.53
2020.37    0.148    59.12
2020.47    0.148    58.71
2020.57    0.149    58.30
2020.67    0.150    57.91
2020.77    0.151    57.51
2020.87    0.151    57.12
2020.97    0.152    56.73
2021.07    0.153    56.35
2021.17    0.154    55.97
2021.27    0.154    55.59
2021.37    0.155    55.22
2021.47    0.156    54.85
2021.57    0.156    54.49
2021.67    0.157    54.12
2021.77    0.158    53.76
2021.87    0.158    53.41
2021.97    0.159    53.05
2022.07    0.160    52.70
2022.17    0.160    52.35
2022.27    0.161    52.01
2022.37    0.162    51.67
2022.47    0.162    51.33
2022.57    0.163    50.99
2022.67    0.163    50.65
2022.77    0.164    50.32
2022.87    0.164    49.99
2022.97    0.165    49.66
2023.07    0.166    49.33
2023.17    0.166    49.01
2023.27    0.167    48.69
2023.37    0.167    48.37
2023.47    0.168    48.05
2023.57    0.168    47.73
2023.67    0.169    47.42
2023.77    0.169    47.10
2023.87    0.169    46.79
2023.97    0.170    46.48
2024.07    0.170    46.18
2024.17    0.171    45.87
2024.27    0.171    45.56
2024.37    0.172    45.26
2024.47    0.172    44.96
2024.57    0.172    44.66
2024.67    0.173    44.36
2024.77    0.173    44.06
2024.87    0.173    43.76
2024.97    0.174    43.47
2025.07    0.174    43.17
2025.17    0.174    42.88
2025.27    0.175    42.59
2025.37    0.175    42.29
2025.47    0.175    42.00
2025.57    0.176    41.71
2025.67    0.176    41.43
2025.77    0.176    41.14
2025.87    0.176    40.85
2025.97    0.177    40.56
2026.07    0.177    40.28
2026.17    0.177    39.99
2026.27    0.177    39.71
2026.37    0.177    39.43
2026.47    0.178    39.14
2026.57    0.178    38.86
2026.67    0.178    38.58
2026.77    0.178    38.30
2026.87    0.178    38.02
2026.97    0.178    37.74
2027.07    0.178    37.46
2027.17    0.179    37.18
2027.27    0.179    36.90
2027.37    0.179    36.62
2027.47    0.179    36.34
2027.57    0.179    36.06
2027.67    0.179    35.78
2027.77    0.179    35.50
2027.87    0.179    35.22
2027.97    0.179    34.95
2028.07    0.179    34.67
2028.17    0.179    34.39
2028.27    0.179    34.11
2028.37    0.179    33.83
2028.47    0.179    33.55
2028.57    0.179    33.28
2028.67    0.179    33.00
2028.77    0.179    32.72
2028.87    0.179    32.44
2028.97    0.179    32.16
2029.07    0.178    31.88
2029.17    0.178    31.60
2029.27    0.178    31.32
2029.37    0.178    31.04
2029.47    0.178    30.75
2029.57    0.178    30.47
2029.67    0.177    30.19
2029.77    0.177    29.91
2029.87    0.177    29.62
2029.97    0.177    29.34
2030.07    0.177    29.05
2030.17    0.176    28.76
2030.27    0.176    28.48
2030.37    0.176    28.19
2030.47    0.175    27.90
2030.57    0.175    27.61
2030.67    0.175    27.32
2030.77    0.175    27.03
2030.87    0.174    26.73
2030.97    0.174    26.44
2031.07    0.173    26.14
2031.17    0.173    25.84
2031.27    0.173    25.55
2031.37    0.172    25.25
2031.47    0.172    24.94
2031.57    0.171    24.64
2031.67    0.171    24.34
2031.77    0.170    24.03
2031.87    0.170    23.72
2031.97    0.169    23.41
2032.07    0.169    23.10
2032.17    0.168    22.79
2032.27    0.168    22.47
2032.37    0.167    22.16
2032.47    0.167    21.84
2032.57    0.166    21.51
2032.67    0.166    21.19
2032.77    0.165    20.86
2032.87    0.164    20.53
2032.97    0.164    20.20
2033.07    0.163    19.87
2033.17    0.162    19.53
2033.27    0.162    19.19
2033.37    0.161    18.85
2033.47    0.160    18.50
2033.57    0.159    18.15
2033.67    0.159    17.80
2033.77    0.158    17.44
2033.87    0.157    17.08
2033.97    0.156    16.72
2034.07    0.155    16.35
2034.17    0.154    15.98
2034.27    0.154    15.60
2034.37    0.153    15.22
2034.47    0.152    14.83
2034.57    0.151    14.44
2034.67    0.150    14.05
2034.77    0.149    13.65
2034.87    0.148    13.24
2034.97    0.147    12.83
2035.07    0.146    12.42
2035.17    0.145    11.99
2035.27    0.144    11.57
2035.37    0.143    11.13
2035.47    0.141    10.69
2035.57    0.140    10.24
2035.67    0.139     9.78
2035.77    0.138     9.31
2035.87    0.137     8.84
2035.97    0.135     8.36
2036.07    0.134     7.87
2036.17    0.133     7.37
2036.27    0.131     6.86
2036.37    0.130     6.34
2036.47    0.129     5.80
2036.57    0.127     5.26
2036.67    0.126     4.70
2036.77    0.124     4.13
2036.87    0.123     3.55
2036.97    0.121     2.96
2037.07    0.120     2.34
2037.17    0.118     1.71
2037.27    0.117     1.07
2037.37    0.115     0.41
2037.47    0.113   359.72
2037.57    0.112   359.02
2037.67    0.110   358.29
2037.77    0.108   357.54
2037.87    0.106   356.77
2037.97    0.105   355.97
2038.07    0.103   355.14
2038.17    0.101   354.28
2038.27    0.099   353.38
2038.37    0.097   352.45
2038.47    0.095   351.48
2038.57    0.093   350.46
2038.67    0.091   349.40
2038.77    0.088   348.29
2038.87    0.086   347.12
2038.97    0.084   345.88
2039.07    0.082   344.58
2039.17    0.079   343.21
2039.27    0.077   341.74
2039.37    0.074   340.19
2039.47    0.072   338.53
2039.57    0.069   336.74
2039.67    0.067   334.82
2039.77    0.064   332.75
2039.87    0.062   330.50
2039.97    0.059   328.04
2040.07    0.056   325.35
2040.17    0.053   322.39
2040.27    0.051   319.10

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 17:19:52