Double Star Calculator - Orbit

Orbital Elements for HDS1572

WDS:	HDS1572	WDS ID/Discoverer
P:	18.450	Orbital period (years)
a:	0.172	Semi-major axis (arcseconds)
i:	97.4	Inclination (degrees)
Ω:	142.4	Longitude of ascending node (degrees)
T:	2013.690	Epoch of periastron passage (year)
e:	0.682	Eccentricity
ω:	133.6	Longitude of periastron (degrees)
Start-Year:	2015.775	Year
End-Year:	2034.225	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HDS1572
Position:	110123.29-120334.1	Epoch-2000 right ascension and declination
WDS-ID:	11014-1204	WDS designation
Discoverer Code:	HDS1572	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	95502	HD catalog number
Hipparcos number:	53879	Hipparcos catalog number
V1:	8.27	Magnitude of the primary
V2:	9.87	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 HDS1572

WDS 6th Orbit including measures of HDS1572

-- 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 HDS1572

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.230   146.13
--------------------------
2015.78    0.036   291.15
2015.88    0.033   286.67
2015.97    0.031   281.39
2016.07    0.028   275.15
2016.17    0.026   267.83
2016.27    0.025   259.41
2016.37    0.024   250.05
2016.47    0.023   240.10
2016.57    0.024   230.11
2016.67    0.025   220.64
2016.77    0.026   212.10
2016.87    0.028   204.65
2016.97    0.031   198.30
2017.07    0.033   192.93
2017.17    0.036   188.40
2017.27    0.039   184.57
2017.37    0.043   181.32
2017.47    0.046   178.52
2017.57    0.049   176.11
2017.67    0.053   174.01
2017.77    0.056   172.17
2017.87    0.060   170.55
2017.97    0.063   169.10
2018.07    0.067   167.81
2018.17    0.070   166.64
2018.27    0.074   165.59
2018.37    0.077   164.63
2018.47    0.081   163.75
2018.57    0.084   162.95
2018.67    0.087   162.21
2018.77    0.091   161.52
2018.87    0.094   160.89
2018.97    0.098   160.30
2019.07    0.101   159.75
2019.17    0.104   159.23
2019.27    0.107   158.74
2019.37    0.111   158.29
2019.47    0.114   157.86
2019.57    0.117   157.45
2019.67    0.120   157.06
2019.77    0.123   156.70
2019.87    0.126   156.35
2019.97    0.130   156.02
2020.07    0.133   155.70
2020.17    0.136   155.40
2020.27    0.138   155.11
2020.37    0.141   154.83
2020.47    0.144   154.56
2020.57    0.147   154.31
2020.67    0.150   154.06
2020.77    0.153   153.82
2020.87    0.155   153.59
2020.97    0.158   153.37
2021.07    0.161   153.16
2021.17    0.163   152.95
2021.27    0.166   152.75
2021.37    0.168   152.55
2021.47    0.171   152.36
2021.57    0.173   152.18
2021.67    0.175   152.00
2021.77    0.178   151.82
2021.87    0.180   151.66
2021.97    0.182   151.49
2022.07    0.185   151.33
2022.17    0.187   151.17
2022.27    0.189   151.02
2022.37    0.191   150.87
2022.47    0.193   150.72
2022.57    0.195   150.57
2022.67    0.197   150.43
2022.77    0.199   150.29
2022.87    0.201   150.16
2022.97    0.202   150.02
2023.07    0.204   149.89
2023.17    0.206   149.76
2023.27    0.207   149.63
2023.37    0.209   149.51
2023.47    0.211   149.39
2023.57    0.212   149.26
2023.67    0.214   149.14
2023.77    0.215   149.03
2023.87    0.216   148.91
2023.97    0.218   148.79
2024.07    0.219   148.68
2024.17    0.220   148.57
2024.27    0.221   148.45
2024.37    0.222   148.34
2024.47    0.223   148.23
2024.57    0.224   148.12
2024.67    0.225   148.02
2024.77    0.226   147.91
2024.87    0.227   147.80
2024.97    0.227   147.70
2025.07    0.228   147.59
2025.17    0.229   147.49
2025.27    0.229   147.39
2025.37    0.230   147.28
2025.47    0.230   147.18
2025.57    0.230   147.08
2025.67    0.231   146.97
2025.77    0.231   146.87
2025.87    0.231   146.77
2025.97    0.231   146.67
2026.07    0.231   146.57
2026.17    0.231   146.46
2026.27    0.231   146.36
2026.37    0.231   146.26
2026.47    0.230   146.16
2026.57    0.230   146.06
2026.67    0.229   145.95
2026.77    0.229   145.85
2026.87    0.228   145.74
2026.97    0.228   145.64
2027.07    0.227   145.53
2027.17    0.226   145.43
2027.27    0.225   145.32
2027.37    0.224   145.21
2027.47    0.223   145.10
2027.57    0.221   144.99
2027.67    0.220   144.88
2027.77    0.219   144.77
2027.87    0.217   144.65
2027.97    0.215   144.54
2028.07    0.213   144.42
2028.17    0.212   144.30
2028.27    0.210   144.18
2028.37    0.207   144.05
2028.47    0.205   143.92
2028.57    0.203   143.79
2028.67    0.200   143.66
2028.77    0.197   143.52
2028.87    0.195   143.38
2028.97    0.192   143.23
2029.07    0.188   143.08
2029.17    0.185   142.93
2029.27    0.182   142.77
2029.37    0.178   142.60
2029.47    0.174   142.42
2029.57    0.170   142.24
2029.67    0.166   142.05
2029.77    0.161   141.84
2029.87    0.157   141.63
2029.97    0.152   141.40
2030.07    0.147   141.16
2030.17    0.141   140.90
2030.27    0.136   140.61
2030.37    0.130   140.30
2030.47    0.123   139.96
2030.57    0.117   139.59
2030.67    0.110   139.16
2030.77    0.103   138.68
2030.87    0.095   138.12
2030.97    0.087   137.46
2031.07    0.078   136.66
2031.17    0.069   135.65
2031.27    0.060   134.33
2031.37    0.050   132.49
2031.47    0.039   129.69
2031.57    0.028   124.79
2031.67    0.018   113.85
2031.77    0.009    76.29
2031.87    0.011     4.41
2031.97    0.021   341.12
2032.07    0.032   333.03
2032.17    0.041   328.89
2032.27    0.050   326.26
2032.37    0.056   324.32
2032.47    0.062   322.76
2032.57    0.065   321.41
2032.67    0.067   320.18
2032.77    0.069   319.00
2032.87    0.069   317.85
2032.97    0.068   316.70
2033.07    0.067   315.52
2033.17    0.066   314.29
2033.27    0.064   312.99
2033.37    0.061   311.60
2033.47    0.059   310.09
2033.57    0.056   308.44
2033.67    0.053   306.62
2033.77    0.050   304.58
2033.87    0.047   302.28
2033.97    0.044   299.66
2034.07    0.041   296.64
2034.17    0.038   293.12

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 16:32:47