Double Star Calculator - Orbit

Orbital Elements for VSP51

WDS:	VSP51	WDS ID/Discoverer
P:	23.000	Orbital period (years)
a:	0.168	Semi-major axis (arcseconds)
i:	122.0	Inclination (degrees)
Ω:	350.0	Longitude of ascending node (degrees)
T:	2020.000	Epoch of periastron passage (year)
e:	0.48	Eccentricity
ω:	10.0	Longitude of periastron (degrees)
Start-Year:	2013.5	Year
End-Year:	2036.5	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for VSP51
Position:	175125.75-535019.5	Epoch-2000 right ascension and declination
WDS-ID:	17514-5350	WDS designation
Discoverer Code:	VSP51	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	161935	HD catalog number
Hipparcos number:	87386	Hipparcos catalog number
V1:	6.2	Magnitude of the primary
V2:	9.0	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2018	Date of last observation
Orbit grade:	5	Orbit grade, ranging from : 1 = Definitive 2 = Good 3 = Reliable 4 = Preliminary 5 = Indeterminate
Flags:		Flags
Ephemerides:		Ephemerides
Code:	VSP2022b	Reference

Double Star Orbit for VSP51

WDS 6th Orbit including measures of VSP51

-- 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 VSP51

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.200   183.69
--------------------------
2013.50    0.171   142.33
2013.60    0.169   141.62
2013.70    0.166   140.89
2013.80    0.164   140.14
2013.90    0.161   139.36
2014.00    0.158   138.55
2014.10    0.155   137.71
2014.20    0.153   136.85
2014.30    0.150   135.95
2014.40    0.147   135.02
2014.50    0.144   134.05
2014.60    0.141   133.04
2014.70    0.138   131.99
2014.80    0.135   130.89
2014.90    0.132   129.75
2015.00    0.130   128.55
2015.10    0.127   127.30
2015.20    0.124   125.98
2015.30    0.121   124.60
2015.40    0.118   123.16
2015.50    0.115   121.63
2015.60    0.112   120.03
2015.70    0.109   118.34
2015.80    0.106   116.56
2015.90    0.103   114.68
2016.00    0.100   112.69
2016.10    0.097   110.59
2016.20    0.095   108.37
2016.30    0.092   106.01
2016.40    0.090   103.53
2016.50    0.087   100.90
2016.60    0.085    98.12
2016.70    0.083    95.19
2016.80    0.081    92.11
2016.90    0.079    88.87
2017.00    0.077    85.48
2017.10    0.075    81.95
2017.20    0.074    78.27
2017.30    0.073    74.48
2017.40    0.072    70.59
2017.50    0.072    66.61
2017.60    0.071    62.57
2017.70    0.071    58.51
2017.80    0.071    54.44
2017.90    0.071    50.39
2018.00    0.072    46.40
2018.10    0.073    42.47
2018.20    0.074    38.62
2018.30    0.075    34.88
2018.40    0.076    31.25
2018.50    0.077    27.74
2018.60    0.078    24.34
2018.70    0.080    21.06
2018.80    0.081    17.89
2018.90    0.082    14.82
2019.00    0.084    11.84
2019.10    0.085     8.96
2019.20    0.086     6.14
2019.30    0.087     3.39
2019.40    0.087     0.68
2019.50    0.088   358.01
2019.60    0.088   355.36
2019.70    0.088   352.72
2019.80    0.088   350.06
2019.90    0.087   347.38
2020.00    0.086   344.66
2020.10    0.085   341.88
2020.20    0.084   339.01
2020.30    0.082   336.05
2020.40    0.081   332.96
2020.50    0.079   329.73
2020.60    0.077   326.33
2020.70    0.075   322.75
2020.80    0.073   318.96
2020.90    0.070   314.93
2021.00    0.068   310.67
2021.10    0.067   306.16
2021.20    0.065   301.40
2021.30    0.063   296.41
2021.40    0.062   291.21
2021.50    0.062   285.85
2021.60    0.061   280.38
2021.70    0.061   274.88
2021.80    0.062   269.42
2021.90    0.062   264.06
2022.00    0.064   258.87
2022.10    0.065   253.90
2022.20    0.067   249.19
2022.30    0.069   244.76
2022.40    0.072   240.63
2022.50    0.074   236.78
2022.60    0.077   233.21
2022.70    0.080   229.91
2022.80    0.084   226.86
2022.90    0.087   224.04
2023.00    0.090   221.43
2023.10    0.094   219.01
2023.20    0.097   216.76
2023.30    0.101   214.68
2023.40    0.105   212.73
2023.50    0.108   210.92
2023.60    0.112   209.22
2023.70    0.115   207.63
2023.80    0.119   206.14
2023.90    0.123   204.73
2024.00    0.126   203.40
2024.10    0.130   202.15
2024.20    0.133   200.96
2024.30    0.137   199.83
2024.40    0.140   198.76
2024.50    0.143   197.74
2024.60    0.147   196.76
2024.70    0.150   195.83
2024.80    0.153   194.93
2024.90    0.156   194.08
2025.00    0.159   193.25
2025.10    0.163   192.46
2025.20    0.166   191.70
2025.30    0.169   190.96
2025.40    0.171   190.25
2025.50    0.174   189.56
2025.60    0.177   188.90
2025.70    0.180   188.25
2025.80    0.183   187.63
2025.90    0.185   187.02
2026.00    0.188   186.43
2026.10    0.190   185.85
2026.20    0.193   185.29
2026.30    0.195   184.75
2026.40    0.197   184.21
2026.50    0.200   183.69
2026.60    0.202   183.18
2026.70    0.204   182.69
2026.80    0.206   182.20
2026.90    0.208   181.72
2027.00    0.210   181.25
2027.10    0.212   180.79
2027.20    0.214   180.34
2027.30    0.216   179.90
2027.40    0.218   179.46
2027.50    0.220   179.03
2027.60    0.221   178.61
2027.70    0.223   178.19
2027.80    0.224   177.78
2027.90    0.226   177.38
2028.00    0.227   176.98
2028.10    0.229   176.58
2028.20    0.230   176.19
2028.30    0.231   175.81
2028.40    0.233   175.42
2028.50    0.234   175.05
2028.60    0.235   174.67
2028.70    0.236   174.30
2028.80    0.237   173.94
2028.90    0.238   173.57
2029.00    0.239   173.21
2029.10    0.240   172.85
2029.20    0.241   172.50
2029.30    0.242   172.15
2029.40    0.242   171.79
2029.50    0.243   171.45
2029.60    0.244   171.10
2029.70    0.244   170.75
2029.80    0.245   170.41
2029.90    0.245   170.07
2030.00    0.246   169.73
2030.10    0.246   169.39
2030.20    0.246   169.05
2030.30    0.246   168.71
2030.40    0.247   168.37
2030.50    0.247   168.03
2030.60    0.247   167.70
2030.70    0.247   167.36
2030.80    0.247   167.02
2030.90    0.247   166.69
2031.00    0.247   166.35
2031.10    0.247   166.01
2031.20    0.247   165.68
2031.30    0.247   165.34
2031.40    0.246   165.00
2031.50    0.246   164.66
2031.60    0.246   164.32
2031.70    0.245   163.98
2031.80    0.245   163.64
2031.90    0.244   163.29
2032.00    0.244   162.95
2032.10    0.243   162.60
2032.20    0.242   162.25
2032.30    0.242   161.90
2032.40    0.241   161.55
2032.50    0.240   161.20
2032.60    0.239   160.84
2032.70    0.238   160.48
2032.80    0.238   160.12
2032.90    0.237   159.75
2033.00    0.236   159.38
2033.10    0.234   159.01
2033.20    0.233   158.63
2033.30    0.232   158.26
2033.40    0.231   157.87
2033.50    0.230   157.49
2033.60    0.228   157.09
2033.70    0.227   156.70
2033.80    0.226   156.30
2033.90    0.224   155.89
2034.00    0.223   155.48
2034.10    0.221   155.06
2034.20    0.220   154.64
2034.30    0.218   154.21
2034.40    0.216   153.78
2034.50    0.215   153.33
2034.60    0.213   152.89
2034.70    0.211   152.43
2034.80    0.209   151.96
2034.90    0.207   151.49
2035.00    0.205   151.01
2035.10    0.203   150.52
2035.20    0.201   150.02
2035.30    0.199   149.50
2035.40    0.197   148.98
2035.50    0.195   148.45
2035.60    0.193   147.90
2035.70    0.191   147.35
2035.80    0.188   146.77
2035.90    0.186   146.19
2036.00    0.184   145.59
2036.10    0.181   144.97
2036.20    0.179   144.34
2036.30    0.176   143.69
2036.40    0.174   143.02

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 17:43:43