Double Star Calculator - Orbit

Orbital Elements for KUI84AB

WDS:	KUI84AB	WDS ID/Discoverer
P:	14.717	Orbital period (years)
a:	0.17	Semi-major axis (arcseconds)
i:	61.0	Inclination (degrees)
Ω:	171.3	Longitude of ascending node (degrees)
T:	2030.899	Epoch of periastron passage (year)
e:	0.513	Eccentricity
ω:	10.8	Longitude of periastron (degrees)
Start-Year:	2017.6415	Year
End-Year:	2032.3585	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for KUI84AB
Position:	175824.46+042741.8	Epoch-2000 right ascension and declination
WDS-ID:	17584+0428	WDS designation
Discoverer Code:	KUI84AB	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	.	HD catalog number
Hipparcos number:	87991	Hipparcos catalog number
V1:	10.36	Magnitude of the primary
V2:	11.09	Magnitude of the secondary
Equinox:		Equinox
Date:	2019	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:	Doc2021c	Reference

Double Star Orbit for KUI84AB

WDS 6th Orbit including measures of KUI84AB

-- 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 KUI84AB

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.186    13.71
--------------------------
2017.64    0.068   287.77
2017.74    0.073   293.74
2017.84    0.079   298.88
2017.94    0.085   303.32
2018.04    0.091   307.16
2018.14    0.097   310.51
2018.24    0.103   313.46
2018.34    0.109   316.07
2018.44    0.115   318.40
2018.54    0.122   320.50
2018.64    0.128   322.39
2018.74    0.134   324.12
2018.84    0.139   325.70
2018.94    0.145   327.16
2019.04    0.150   328.50
2019.14    0.156   329.76
2019.24    0.161   330.93
2019.34    0.166   332.03
2019.44    0.171   333.06
2019.54    0.176   334.04
2019.64    0.181   334.96
2019.74    0.185   335.84
2019.84    0.189   336.68
2019.94    0.194   337.48
2020.04    0.198   338.25
2020.14    0.202   338.99
2020.24    0.205   339.70
2020.34    0.209   340.39
2020.44    0.212   341.05
2020.54    0.216   341.69
2020.64    0.219   342.31
2020.74    0.222   342.92
2020.84    0.225   343.51
2020.94    0.228   344.08
2021.04    0.230   344.65
2021.14    0.233   345.19
2021.24    0.235   345.73
2021.34    0.237   346.26
2021.44    0.239   346.78
2021.54    0.241   347.29
2021.64    0.243   347.79
2021.74    0.245   348.28
2021.84    0.246   348.77
2021.94    0.248   349.25
2022.04    0.249   349.73
2022.14    0.250   350.20
2022.24    0.251   350.67
2022.34    0.252   351.13
2022.44    0.253   351.59
2022.54    0.254   352.05
2022.64    0.254   352.51
2022.74    0.255   352.96
2022.84    0.255   353.42
2022.94    0.255   353.87
2023.04    0.255   354.32
2023.14    0.255   354.77
2023.24    0.255   355.23
2023.34    0.255   355.68
2023.44    0.254   356.13
2023.54    0.254   356.59
2023.64    0.253   357.05
2023.74    0.252   357.51
2023.84    0.251   357.97
2023.94    0.250   358.44
2024.04    0.249   358.91
2024.14    0.248   359.38
2024.24    0.247   359.87
2024.34    0.245     0.35
2024.44    0.244     0.84
2024.54    0.242     1.34
2024.64    0.240     1.85
2024.74    0.238     2.36
2024.84    0.236     2.88
2024.94    0.234     3.42
2025.04    0.232     3.96
2025.14    0.230     4.51
2025.24    0.227     5.08
2025.34    0.224     5.65
2025.44    0.222     6.24
2025.54    0.219     6.85
2025.64    0.216     7.47
2025.74    0.213     8.11
2025.84    0.210     8.77
2025.94    0.207     9.45
2026.04    0.203    10.15
2026.14    0.200    10.87
2026.24    0.196    11.63
2026.34    0.192    12.41
2026.44    0.189    13.22
2026.54    0.185    14.06
2026.64    0.181    14.94
2026.74    0.177    15.86
2026.84    0.172    16.83
2026.94    0.168    17.84
2027.04    0.164    18.91
2027.14    0.159    20.04
2027.24    0.155    21.24
2027.34    0.150    22.50
2027.44    0.145    23.85
2027.54    0.140    25.29
2027.64    0.136    26.84
2027.74    0.131    28.50
2027.84    0.126    30.29
2027.94    0.121    32.23
2028.04    0.116    34.33
2028.14    0.111    36.63
2028.24    0.106    39.14
2028.34    0.101    41.90
2028.44    0.096    44.94
2028.54    0.091    48.31
2028.64    0.087    52.03
2028.74    0.082    56.15
2028.84    0.078    60.72
2028.94    0.075    65.76
2029.04    0.071    71.30
2029.14    0.069    77.32
2029.24    0.066    83.78
2029.34    0.065    90.60
2029.44    0.064    97.67
2029.54    0.064   104.82
2029.64    0.065   111.91
2029.74    0.066   118.79
2029.84    0.068   125.36
2029.94    0.070   131.54
2030.04    0.073   137.33
2030.14    0.075   142.74
2030.24    0.078   147.79
2030.34    0.080   152.54
2030.44    0.082   157.05
2030.54    0.083   161.38
2030.64    0.084   165.61
2030.74    0.084   169.82
2030.84    0.083   174.08
2030.94    0.081   178.48
2031.04    0.078   183.12
2031.14    0.075   188.12
2031.24    0.071   193.59
2031.34    0.068   199.69
2031.44    0.064   206.54
2031.54    0.060   214.27
2031.64    0.057   222.90
2031.74    0.055   232.36
2031.84    0.054   242.38
2031.94    0.054   252.54
2032.04    0.056   262.36
2032.14    0.058   271.44
2032.24    0.062   279.56
2032.34    0.067   286.66

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 17:45:30