Double Star Calculator - Orbit

Orbital Elements for HU1191

WDS:	HU1191	WDS ID/Discoverer
P:	14.639	Orbital period (years)
a:	0.196	Semi-major axis (arcseconds)
i:	143.7	Inclination (degrees)
Ω:	73.2	Longitude of ascending node (degrees)
T:	1996.697	Epoch of periastron passage (year)
e:	0.473	Eccentricity
ω:	296.7	Longitude of periastron (degrees)
Start-Year:	2017.6805	Year
End-Year:	2032.3195	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HU1191
Position:	184634.62+382104.0	Epoch-2000 right ascension and declination
WDS-ID:	18466+3821	WDS designation
Discoverer Code:	HU1191	Discover designation and components
ADS number:	11680	Aitken Double Star catalog
HD number:	173950	HD catalog number
Hipparcos number:	92122	Hipparcos catalog number
V1:	8.67	Magnitude of the primary
V2:	9.42	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2023	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:	Doc2024b	Reference

Double Star Orbit for HU1191

WDS 6th Orbit including measures of HU1191

-- 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 HU1191

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.108    93.24
--------------------------
2017.68    0.235   322.57
2017.78    0.236   321.36
2017.88    0.237   320.16
2017.98    0.238   318.98
2018.08    0.239   317.80
2018.18    0.241   316.64
2018.28    0.242   315.48
2018.38    0.243   314.34
2018.48    0.243   313.20
2018.58    0.244   312.07
2018.68    0.245   310.95
2018.78    0.246   309.84
2018.88    0.247   308.74
2018.98    0.247   307.64
2019.08    0.248   306.55
2019.18    0.249   305.46
2019.28    0.249   304.38
2019.38    0.250   303.30
2019.48    0.250   302.23
2019.58    0.250   301.16
2019.68    0.251   300.09
2019.78    0.251   299.02
2019.88    0.251   297.96
2019.98    0.251   296.90
2020.08    0.251   295.83
2020.18    0.251   294.77
2020.28    0.251   293.71
2020.38    0.251   292.64
2020.48    0.251   291.58
2020.58    0.250   290.51
2020.68    0.250   289.44
2020.78    0.249   288.36
2020.88    0.249   287.28
2020.98    0.248   286.19
2021.08    0.247   285.10
2021.18    0.246   284.00
2021.28    0.245   282.89
2021.38    0.244   281.77
2021.48    0.243   280.64
2021.58    0.242   279.50
2021.68    0.241   278.35
2021.78    0.239   277.18
2021.88    0.238   276.00
2021.98    0.236   274.81
2022.08    0.234   273.59
2022.18    0.232   272.35
2022.28    0.230   271.10
2022.38    0.228   269.81
2022.48    0.225   268.51
2022.58    0.223   267.17
2022.68    0.220   265.80
2022.78    0.217   264.40
2022.88    0.214   262.97
2022.98    0.211   261.49
2023.08    0.208   259.96
2023.18    0.205   258.39
2023.28    0.201   256.76
2023.38    0.197   255.07
2023.48    0.193   253.31
2023.58    0.189   251.48
2023.68    0.185   249.57
2023.78    0.181   247.56
2023.88    0.176   245.45
2023.98    0.171   243.22
2024.08    0.166   240.86
2024.18    0.161   238.34
2024.28    0.155   235.66
2024.38    0.150   232.77
2024.48    0.144   229.66
2024.58    0.138   226.29
2024.68    0.132   222.61
2024.78    0.126   218.59
2024.88    0.120   214.16
2024.98    0.114   209.26
2025.08    0.108   203.84
2025.18    0.103   197.81
2025.28    0.098   191.14
2025.38    0.093   183.78
2025.48    0.090   175.76
2025.58    0.087   167.15
2025.68    0.085   158.11
2025.78    0.085   148.86
2025.88    0.086   139.67
2025.98    0.088   130.75
2026.08    0.091   122.31
2026.18    0.094   114.43
2026.28    0.098   107.17
2026.38    0.102   100.50
2026.48    0.107    94.38
2026.58    0.112    88.75
2026.68    0.116    83.57
2026.78    0.120    78.76
2026.88    0.124    74.28
2026.98    0.128    70.08
2027.08    0.132    66.14
2027.18    0.136    62.40
2027.28    0.139    58.86
2027.38    0.143    55.48
2027.48    0.146    52.25
2027.58    0.149    49.15
2027.68    0.151    46.16
2027.78    0.154    43.29
2027.88    0.157    40.51
2027.98    0.159    37.81
2028.08    0.161    35.20
2028.18    0.164    32.67
2028.28    0.166    30.20
2028.38    0.168    27.80
2028.48    0.170    25.46
2028.58    0.172    23.18
2028.68    0.174    20.95
2028.78    0.176    18.77
2028.88    0.178    16.64
2028.98    0.180    14.56
2029.08    0.182    12.52
2029.18    0.184    10.52
2029.28    0.186     8.56
2029.38    0.188     6.65
2029.48    0.190     4.77
2029.58    0.192     2.92
2029.68    0.193     1.11
2029.78    0.195   359.34
2029.88    0.197   357.59
2029.98    0.199   355.88
2030.08    0.201   354.20
2030.18    0.202   352.54
2030.28    0.204   350.92
2030.38    0.206   349.32
2030.48    0.207   347.75
2030.58    0.209   346.20
2030.68    0.211   344.68
2030.78    0.212   343.18
2030.88    0.214   341.70
2030.98    0.216   340.25
2031.08    0.217   338.82
2031.18    0.219   337.40
2031.28    0.220   336.01
2031.38    0.222   334.64
2031.48    0.223   333.29
2031.58    0.225   331.95
2031.68    0.226   330.63
2031.78    0.228   329.33
2031.88    0.229   328.04
2031.98    0.230   326.77
2032.08    0.232   325.52
2032.18    0.233   324.27
2032.28    0.234   323.05

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 17:55:41