Double Star Calculator - Orbit

Orbital Elements for KUI79AB

WDS:	KUI79AB	WDS ID/Discoverer
P:	12.955	Orbital period (years)
a:	0.77612	Semi-major axis (arcseconds)
i:	146.96	Inclination (degrees)
Ω:	159.18	Longitude of ascending node (degrees)
T:	2016.935	Epoch of periastron passage (year)
e:	0.75167	Eccentricity
ω:	98.31	Longitude of periastron (degrees)
Start-Year:	2018.52245	Year
End-Year:	2031.47755	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for KUI79AB
Position:	171207.78+453957.6	Epoch-2000 right ascension and declination
WDS-ID:	17121+4540	WDS designation
Discoverer Code:	KUI79AB	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	155876	HD catalog number
Hipparcos number:	84140	Hipparcos catalog number
V1:	10.02	Magnitude of the primary
V2:	10.25	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:	MnA2019	Reference

Double Star Orbit for KUI79AB

WDS 6th Orbit including measures of KUI79AB

-- 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 KUI79AB

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.999   215.62
--------------------------
2018.52    0.668   288.94
2018.62    0.690   286.93
2018.72    0.711   285.04
2018.82    0.731   283.26
2018.92    0.750   281.57
2019.02    0.769   279.97
2019.12    0.787   278.44
2019.22    0.805   276.98
2019.32    0.822   275.58
2019.42    0.838   274.24
2019.52    0.854   272.94
2019.62    0.869   271.70
2019.72    0.883   270.49
2019.82    0.898   269.32
2019.92    0.911   268.19
2020.02    0.924   267.09
2020.12    0.937   266.03
2020.22    0.949   264.99
2020.32    0.961   263.97
2020.42    0.973   262.98
2020.52    0.984   262.02
2020.62    0.994   261.07
2020.72    1.005   260.14
2020.82    1.014   259.24
2020.92    1.024   258.34
2021.02    1.033   257.47
2021.12    1.041   256.61
2021.22    1.050   255.76
2021.32    1.058   254.93
2021.42    1.065   254.11
2021.52    1.072   253.30
2021.62    1.079   252.50
2021.72    1.086   251.71
2021.82    1.092   250.93
2021.92    1.098   250.16
2022.02    1.103   249.39
2022.12    1.108   248.63
2022.22    1.113   247.88
2022.32    1.117   247.14
2022.42    1.122   246.40
2022.52    1.125   245.67
2022.62    1.129   244.94
2022.72    1.132   244.22
2022.82    1.135   243.50
2022.92    1.137   242.78
2023.02    1.139   242.06
2023.12    1.141   241.35
2023.22    1.143   240.64
2023.32    1.144   239.93
2023.42    1.145   239.23
2023.52    1.145   238.52
2023.62    1.145   237.82
2023.72    1.145   237.11
2023.82    1.145   236.41
2023.92    1.144   235.70
2024.02    1.143   234.99
2024.12    1.141   234.28
2024.22    1.140   233.57
2024.32    1.138   232.86
2024.42    1.135   232.14
2024.52    1.132   231.42
2024.62    1.129   230.70
2024.72    1.126   229.97
2024.82    1.122   229.23
2024.92    1.117   228.50
2025.02    1.113   227.75
2025.12    1.108   227.00
2025.22    1.102   226.24
2025.32    1.097   225.48
2025.42    1.091   224.70
2025.52    1.084   223.92
2025.62    1.077   223.13
2025.72    1.070   222.33
2025.82    1.062   221.51
2025.92    1.054   220.69
2026.02    1.046   219.85
2026.12    1.037   218.99
2026.22    1.027   218.13
2026.32    1.017   217.24
2026.42    1.007   216.34
2026.52    0.996   215.41
2026.62    0.985   214.47
2026.72    0.973   213.51
2026.82    0.961   212.52
2026.92    0.948   211.50
2027.02    0.935   210.46
2027.12    0.921   209.38
2027.22    0.906   208.27
2027.32    0.891   207.13
2027.42    0.875   205.94
2027.52    0.859   204.71
2027.62    0.841   203.43
2027.72    0.823   202.09
2027.82    0.805   200.70
2027.92    0.785   199.23
2028.02    0.765   197.69
2028.12    0.744   196.06
2028.22    0.721   194.34
2028.32    0.698   192.50
2028.42    0.673   190.53
2028.52    0.648   188.41
2028.62    0.621   186.11
2028.72    0.592   183.60
2028.82    0.563   180.82
2028.92    0.531   177.72
2029.02    0.497   174.22
2029.12    0.461   170.19
2029.22    0.423   165.45
2029.32    0.382   159.74
2029.42    0.339   152.61
2029.52    0.293   143.29
2029.62    0.245   130.35
2029.72    0.199   111.25
2029.82    0.167    82.85
2029.92    0.166    48.21
2030.02    0.195    18.92
2030.12    0.237   358.79
2030.22    0.282   344.93
2030.32    0.324   334.80
2030.42    0.364   326.96
2030.52    0.401   320.63
2030.62    0.436   315.34
2030.72    0.468   310.81
2030.82    0.499   306.85
2030.92    0.529   303.35
2031.02    0.556   300.20
2031.12    0.583   297.35
2031.22    0.608   294.74
2031.32    0.632   292.33
2031.42    0.656   290.10

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 17:34:49