Double Star Calculator - Orbit

Orbital Elements for A2983

WDS:	A2983	WDS ID/Discoverer
P:	10.005	Orbital period (years)
a:	0.125174	Semi-major axis (arcseconds)
i:	44.44	Inclination (degrees)
Ω:	319.48	Longitude of ascending node (degrees)
T:	1988.130	Epoch of periastron passage (year)
e:	0.4994	Eccentricity
ω:	162.22	Longitude of periastron (degrees)
Start-Year:	2019.9974	Year
End-Year:	2030.0026	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for A2983
Position:	144913.62+101252.0	Epoch-2000 right ascension and declination
WDS-ID:	14492+1013	WDS designation
Discoverer Code:	A2983	Discover designation and components
ADS number:	9397	Aitken Double Star catalog
HD number:	130669	HD catalog number
Hipparcos number:	72479	Hipparcos catalog number
V1:	9.36	Magnitude of the primary
V2:	9.27	Magnitude of the secondary
Equinox:		Equinox
Date:		Date of last observation
Orbit grade:	1	Orbit grade, ranging from : 1 = Definitive 2 = Good 3 = Reliable 4 = Preliminary 5 = Indeterminate
Flags:	n	Flags
Ephemerides:		Ephemerides
Code:	JAA2022	Reference

Double Star Orbit for A2983

WDS 6th Orbit including measures of A2983

-- 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 A2983

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.107   354.08
--------------------------
2020.00    0.097   252.05
2020.10    0.101   255.61
2020.20    0.105   258.91
2020.30    0.109   261.96
2020.40    0.113   264.79
2020.50    0.117   267.43
2020.60    0.121   269.90
2020.70    0.125   272.21
2020.80    0.129   274.38
2020.90    0.132   276.43
2021.00    0.136   278.37
2021.10    0.139   280.21
2021.20    0.143   281.96
2021.30    0.146   283.63
2021.40    0.149   285.22
2021.50    0.152   286.75
2021.60    0.155   288.22
2021.70    0.158   289.64
2021.80    0.161   291.01
2021.90    0.163   292.34
2022.00    0.166   293.63
2022.10    0.168   294.88
2022.20    0.170   296.09
2022.30    0.172   297.28
2022.40    0.174   298.45
2022.50    0.176   299.58
2022.60    0.177   300.70
2022.70    0.179   301.80
2022.80    0.180   302.88
2022.90    0.181   303.95
2023.00    0.182   305.01
2023.10    0.183   306.06
2023.20    0.184   307.09
2023.30    0.184   308.12
2023.40    0.185   309.15
2023.50    0.185   310.17
2023.60    0.185   311.20
2023.70    0.185   312.22
2023.80    0.184   313.24
2023.90    0.184   314.27
2024.00    0.183   315.31
2024.10    0.182   316.35
2024.20    0.182   317.40
2024.30    0.180   318.47
2024.40    0.179   319.55
2024.50    0.178   320.64
2024.60    0.176   321.76
2024.70    0.174   322.90
2024.80    0.172   324.06
2024.90    0.170   325.25
2025.00    0.167   326.48
2025.10    0.165   327.74
2025.20    0.162   329.05
2025.30    0.159   330.40
2025.40    0.156   331.81
2025.50    0.153   333.27
2025.60    0.149   334.81
2025.70    0.145   336.42
2025.80    0.141   338.13
2025.90    0.137   339.93
2026.00    0.133   341.85
2026.10    0.128   343.91
2026.20    0.123   346.12
2026.30    0.118   348.52
2026.40    0.113   351.13
2026.50    0.108   354.00
2026.60    0.102   357.17
2026.70    0.096     0.71
2026.80    0.091     4.70
2026.90    0.085     9.21
2027.00    0.079    14.38
2027.10    0.074    20.32
2027.20    0.069    27.20
2027.30    0.064    35.14
2027.40    0.060    44.26
2027.50    0.057    54.52
2027.60    0.055    65.73
2027.70    0.054    77.50
2027.80    0.055    89.33
2027.90    0.056   100.76
2028.00    0.058   111.52
2028.10    0.060   121.52
2028.20    0.062   130.86
2028.30    0.064   139.66
2028.40    0.065   148.09
2028.50    0.066   156.29
2028.60    0.066   164.34
2028.70    0.066   172.31
2028.80    0.067   180.19
2028.90    0.067   187.96
2029.00    0.068   195.56
2029.10    0.070   202.92
2029.20    0.071   209.98
2029.30    0.073   216.66
2029.40    0.076   222.93
2029.50    0.079   228.77
2029.60    0.082   234.17
2029.70    0.085   239.16
2029.80    0.089   243.75
2029.90    0.093   247.97
2030.00    0.097   251.85

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 17:09:02