Double Star Calculator - Orbit

Orbital Elements for WRH33AA,AB

WDS:	WRH33AA,AB	WDS ID/Discoverer
P:	10.040	Orbital period (years)
a:	0.043	Semi-major axis (arcseconds)
i:	104.7	Inclination (degrees)
Ω:	144.9	Longitude of ascending node (degrees)
T:	1963.012	Epoch of periastron passage (year)
e:	0.118	Eccentricity
ω:	129.8	Longitude of periastron (degrees)
Start-Year:	2019.98	Year
End-Year:	2030.02	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for WRH33AA,AB
Position:	201337.90+464428.8	Epoch-2000 right ascension and declination
WDS-ID:	20136+4644	WDS designation
Discoverer Code:	WRH33AA,AB	Discover designation and components
ADS number:	13554	Aitken Double Star catalog
HD number:	192577	HD catalog number
Hipparcos number:	99675	Hipparcos catalog number
V1:	3.93	Magnitude of the primary
V2:	.	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	1985	Date of last observation
Orbit grade:	3	Orbit grade, ranging from : 1 = Definitive 2 = Good 3 = Reliable 4 = Preliminary 5 = Indeterminate
Flags:	n	Flags
Ephemerides:		Ephemerides
Code:	Msn2013a	Reference

Double Star Orbit for WRH33AA,AB

WDS 6th Orbit including measures of WRH33AA,AB

-- 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 WRH33AA,AB

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.015   275.93
--------------------------
2019.98    0.046   144.57
2020.08    0.045   143.77
2020.18    0.045   142.95
2020.28    0.044   142.10
2020.38    0.043   141.23
2020.48    0.042   140.33
2020.58    0.041   139.38
2020.68    0.040   138.37
2020.78    0.039   137.30
2020.88    0.037   136.15
2020.98    0.036   134.90
2021.08    0.034   133.53
2021.18    0.032   132.00
2021.28    0.030   130.28
2021.38    0.028   128.31
2021.48    0.026   126.02
2021.58    0.024   123.32
2021.68    0.022   120.06
2021.78    0.019   116.03
2021.88    0.017   110.94
2021.98    0.015   104.34
2022.08    0.013    95.64
2022.18    0.011    84.16
2022.28    0.010    69.58
2022.38    0.010    52.79
2022.48    0.010    36.16
2022.58    0.011    21.94
2022.68    0.013    10.82
2022.78    0.015     2.39
2022.88    0.017   355.99
2022.98    0.019   351.01
2023.08    0.022   347.05
2023.18    0.024   343.83
2023.28    0.026   341.13
2023.38    0.028   338.83
2023.48    0.030   336.83
2023.58    0.032   335.06
2023.68    0.033   333.46
2023.78    0.035   332.01
2023.88    0.036   330.67
2023.98    0.037   329.41
2024.08    0.038   328.22
2024.18    0.039   327.07
2024.28    0.039   325.96
2024.38    0.039   324.88
2024.48    0.040   323.81
2024.58    0.040   322.75
2024.68    0.039   321.67
2024.78    0.039   320.58
2024.88    0.038   319.47
2024.98    0.038   318.31
2025.08    0.037   317.11
2025.18    0.036   315.84
2025.28    0.035   314.49
2025.38    0.033   313.05
2025.48    0.032   311.48
2025.58    0.031   309.77
2025.68    0.029   307.88
2025.78    0.027   305.76
2025.88    0.026   303.37
2025.98    0.024   300.62
2026.08    0.022   297.44
2026.18    0.020   293.69
2026.28    0.019   289.24
2026.38    0.017   283.88
2026.48    0.015   277.39
2026.58    0.014   269.54
2026.68    0.013   260.18
2026.78    0.012   249.41
2026.88    0.012   237.69
2026.98    0.012   225.86
2027.08    0.013   214.79
2027.18    0.014   205.06
2027.28    0.015   196.85
2027.38    0.016   190.05
2027.48    0.018   184.45
2027.58    0.020   179.81
2027.68    0.022   175.93
2027.78    0.024   172.65
2027.88    0.025   169.85
2027.98    0.027   167.41
2028.08    0.029   165.29
2028.18    0.031   163.40
2028.28    0.032   161.71
2028.38    0.034   160.19
2028.48    0.035   158.80
2028.58    0.037   157.52
2028.68    0.038   156.33
2028.78    0.040   155.23
2028.88    0.041   154.19
2028.98    0.042   153.21
2029.08    0.043   152.27
2029.18    0.044   151.38
2029.28    0.044   150.51
2029.38    0.045   149.67
2029.48    0.045   148.85
2029.58    0.046   148.05
2029.68    0.046   147.25
2029.78    0.046   146.47
2029.88    0.046   145.68
2029.98    0.046   144.89

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 18:12:46