Double Star Calculator - Orbit

Orbital Elements for HDS950

WDS:	HDS950	WDS ID/Discoverer
P:	10.302	Orbital period (years)
a:	0.0727	Semi-major axis (arcseconds)
i:	103.2	Inclination (degrees)
Ω:	159.1	Longitude of ascending node (degrees)
T:	2015.911	Epoch of periastron passage (year)
e:	0.5424	Eccentricity
ω:	168.2	Longitude of periastron (degrees)
Start-Year:	2019.849	Year
End-Year:	2030.151	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HDS950
Position:	065059.53+055032.6	Epoch-2000 right ascension and declination
WDS-ID:	06510+0551	WDS designation
Discoverer Code:	HDS950	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	49932	HD catalog number
Hipparcos number:	32872	Hipparcos catalog number
V1:	7.73	Magnitude of the primary
V2:	7.94	Magnitude of the secondary
Equinox:		Equinox
Date:	2024	Date of last observation
Orbit grade:	2	Orbit grade, ranging from : 1 = Definitive 2 = Good 3 = Reliable 4 = Preliminary 5 = Indeterminate
Flags:		Flags
Ephemerides:		Ephemerides
Code:	Tok2025b	Reference

Double Star Orbit for HDS950

WDS 6th Orbit including measures of HDS950

-- 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 HDS950

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.032   332.65
--------------------------
2019.85    0.096   165.79
2019.95    0.098   165.42
2020.05    0.100   165.05
2020.15    0.101   164.70
2020.25    0.103   164.36
2020.35    0.104   164.03
2020.45    0.105   163.70
2020.55    0.106   163.38
2020.65    0.107   163.07
2020.75    0.108   162.77
2020.85    0.109   162.46
2020.95    0.109   162.16
2021.05    0.110   161.87
2021.15    0.110   161.58
2021.25    0.111   161.29
2021.35    0.111   161.00
2021.45    0.111   160.71
2021.55    0.111   160.42
2021.65    0.111   160.13
2021.75    0.111   159.84
2021.85    0.110   159.55
2021.95    0.110   159.26
2022.05    0.109   158.96
2022.15    0.108   158.66
2022.25    0.108   158.36
2022.35    0.107   158.05
2022.45    0.106   157.74
2022.55    0.104   157.41
2022.65    0.103   157.09
2022.75    0.102   156.75
2022.85    0.100   156.40
2022.95    0.098   156.04
2023.05    0.097   155.67
2023.15    0.095   155.28
2023.25    0.093   154.88
2023.35    0.090   154.45
2023.45    0.088   154.01
2023.55    0.085   153.53
2023.65    0.083   153.03
2023.75    0.080   152.50
2023.85    0.077   151.92
2023.95    0.074   151.30
2024.05    0.070   150.62
2024.15    0.067   149.87
2024.25    0.063   149.03
2024.35    0.060   148.10
2024.45    0.056   147.03
2024.55    0.052   145.79
2024.65    0.047   144.34
2024.75    0.043   142.58
2024.85    0.038   140.41
2024.95    0.033   137.62
2025.05    0.029   133.90
2025.15    0.024   128.65
2025.25    0.019   120.71
2025.35    0.015   107.73
2025.45    0.011    85.82
2025.55    0.011    54.91
2025.65    0.013    27.46
2025.75    0.016    10.21
2025.85    0.021   359.78
2025.95    0.025   352.94
2026.05    0.029   347.98
2026.15    0.031   344.04
2026.25    0.033   340.65
2026.35    0.034   337.49
2026.45    0.033   334.33
2026.55    0.032   330.95
2026.65    0.029   327.13
2026.75    0.026   322.56
2026.85    0.023   316.79
2026.95    0.020   309.14
2027.05    0.017   298.62
2027.15    0.014   284.05
2027.25    0.013   265.16
2027.35    0.013   244.61
2027.45    0.015   226.69
2027.55    0.018   213.28
2027.65    0.021   203.74
2027.75    0.025   196.90
2027.85    0.028   191.84
2027.95    0.032   187.98
2028.05    0.036   184.94
2028.15    0.040   182.49
2028.25    0.044   180.45
2028.35    0.047   178.74
2028.45    0.051   177.27
2028.55    0.054   175.99
2028.65    0.058   174.87
2028.75    0.061   173.86
2028.85    0.064   172.96
2028.95    0.067   172.15
2029.05    0.070   171.40
2029.15    0.073   170.71
2029.25    0.076   170.08
2029.35    0.079   169.49
2029.45    0.081   168.93
2029.55    0.084   168.41
2029.65    0.086   167.92
2029.75    0.088   167.46
2029.85    0.091   167.02
2029.95    0.093   166.59
2030.05    0.094   166.19
2030.15    0.096   165.80

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 15:51:59