Double Star Calculator - Orbit

Orbital Elements for HDS3145

WDS:	HDS3145	WDS ID/Discoverer
P:	10.641	Orbital period (years)
a:	0.0951	Semi-major axis (arcseconds)
i:	149.4	Inclination (degrees)
Ω:	62.0	Longitude of ascending node (degrees)
T:	1997.760	Epoch of periastron passage (year)
e:	0.516	Eccentricity
ω:	301.9	Longitude of periastron (degrees)
Start-Year:	2019.6795	Year
End-Year:	2030.3205	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HDS3145
Position:	220818.81+240925.1	Epoch-2000 right ascension and declination
WDS-ID:	22083+2409	WDS designation
Discoverer Code:	HDS3145	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	210211	HD catalog number
Hipparcos number:	109281	Hipparcos catalog number
V1:	7.29	Magnitude of the primary
V2:	7.67	Magnitude of the secondary
Equinox:		Equinox
Date:	2018	Date of last observation
Orbit grade:	2	Orbit grade, ranging from : 1 = Definitive 2 = Good 3 = Reliable 4 = Preliminary 5 = Indeterminate
Flags:	n	Flags
Ephemerides:		Ephemerides
Code:	Tok2019c	Reference

Double Star Orbit for HDS3145

WDS 6th Orbit including measures of HDS3145

-- 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 HDS3145

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.123   267.27
--------------------------
2019.68    0.058    54.41
2019.78    0.061    47.98
2019.88    0.063    42.09
2019.98    0.066    36.67
2020.08    0.068    31.66
2020.18    0.071    26.98
2020.28    0.073    22.61
2020.38    0.075    18.50
2020.48    0.077    14.64
2020.58    0.080    10.98
2020.68    0.082     7.51
2020.78    0.084     4.22
2020.88    0.086     1.08
2020.98    0.088   358.08
2021.08    0.090   355.21
2021.18    0.092   352.47
2021.28    0.093   349.83
2021.38    0.095   347.30
2021.48    0.097   344.86
2021.58    0.099   342.51
2021.68    0.101   340.24
2021.78    0.102   338.05
2021.88    0.104   335.92
2021.98    0.105   333.86
2022.08    0.107   331.86
2022.18    0.109   329.92
2022.28    0.110   328.03
2022.38    0.111   326.19
2022.48    0.113   324.39
2022.58    0.114   322.64
2022.68    0.115   320.93
2022.78    0.117   319.25
2022.88    0.118   317.61
2022.98    0.119   316.01
2023.08    0.120   314.43
2023.18    0.121   312.89
2023.28    0.122   311.36
2023.38    0.123   309.87
2023.48    0.124   308.39
2023.58    0.125   306.94
2023.68    0.126   305.51
2023.78    0.127   304.09
2023.88    0.127   302.70
2023.98    0.128   301.31
2024.08    0.129   299.94
2024.18    0.129   298.59
2024.28    0.130   297.24
2024.38    0.130   295.90
2024.48    0.130   294.57
2024.58    0.131   293.25
2024.68    0.131   291.93
2024.78    0.131   290.62
2024.88    0.131   289.31
2024.98    0.131   288.00
2025.08    0.131   286.69
2025.18    0.131   285.39
2025.28    0.131   284.08
2025.38    0.131   282.76
2025.48    0.131   281.44
2025.58    0.130   280.11
2025.68    0.130   278.78
2025.78    0.129   277.44
2025.88    0.129   276.08
2025.98    0.128   274.71
2026.08    0.127   273.32
2026.18    0.126   271.92
2026.28    0.125   270.49
2026.38    0.124   269.05
2026.48    0.123   267.57
2026.58    0.122   266.07
2026.68    0.121   264.54
2026.78    0.119   262.97
2026.88    0.118   261.36
2026.98    0.116   259.71
2027.08    0.114   258.01
2027.18    0.112   256.25
2027.28    0.110   254.43
2027.38    0.108   252.54
2027.48    0.106   250.58
2027.58    0.104   248.52
2027.68    0.101   246.37
2027.78    0.098   244.10
2027.88    0.096   241.71
2027.98    0.093   239.16
2028.08    0.090   236.44
2028.18    0.086   233.52
2028.28    0.083   230.36
2028.38    0.079   226.92
2028.48    0.075   223.15
2028.58    0.072   218.98
2028.68    0.068   214.32
2028.78    0.064   209.07
2028.88    0.059   203.09
2028.98    0.055   196.23
2029.08    0.051   188.30
2029.18    0.048   179.12
2029.28    0.045   168.56
2029.38    0.042   156.62
2029.48    0.041   143.59
2029.58    0.041   130.01
2029.68    0.041   116.59
2029.78    0.043   103.93
2029.88    0.045    92.39
2029.98    0.048    82.05
2030.08    0.051    72.84
2030.18    0.054    64.62
2030.28    0.057    57.23

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 18:37:02