Double Star Calculator - Orbit

Orbital Elements for HDS1149

WDS:	HDS1149	WDS ID/Discoverer
P:	12.950	Orbital period (years)
a:	0.1977	Semi-major axis (arcseconds)
i:	145.2	Inclination (degrees)
Ω:	80.4	Longitude of ascending node (degrees)
T:	2011.680	Epoch of periastron passage (year)
e:	0.551	Eccentricity
ω:	61.3	Longitude of periastron (degrees)
Start-Year:	2018.525	Year
End-Year:	2031.475	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HDS1149
Position:	080319.66+525036.0	Epoch-2000 right ascension and declination
WDS-ID:	08033+5251	WDS designation
Discoverer Code:	HDS1149	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	.	HD catalog number
Hipparcos number:	39402	Hipparcos catalog number
V1:	12.03	Magnitude of the primary
V2:	12.34	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2009	Date of last observation
Orbit grade:	3	Orbit grade, ranging from : 1 = Definitive 2 = Good 3 = Reliable 4 = Preliminary 5 = Indeterminate
Flags:	n	Flags
Ephemerides:		Ephemerides
Code:	Bag2010	Reference

Double Star Orbit for HDS1149

WDS 6th Orbit including measures of HDS1149

-- 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 HDS1149

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.185   261.23
--------------------------
2018.53    0.262   200.13
2018.62    0.261   199.04
2018.72    0.260   197.94
2018.82    0.258   196.83
2018.92    0.257   195.71
2019.02    0.256   194.58
2019.12    0.254   193.43
2019.22    0.253   192.27
2019.32    0.251   191.09
2019.42    0.249   189.90
2019.52    0.248   188.70
2019.62    0.246   187.47
2019.72    0.244   186.23
2019.82    0.242   184.97
2019.92    0.240   183.69
2020.02    0.238   182.38
2020.12    0.236   181.06
2020.22    0.234   179.71
2020.32    0.232   178.33
2020.42    0.229   176.93
2020.52    0.227   175.50
2020.62    0.225   174.04
2020.72    0.222   172.55
2020.82    0.220   171.02
2020.92    0.217   169.47
2021.02    0.215   167.87
2021.12    0.212   166.24
2021.22    0.210   164.56
2021.32    0.207   162.84
2021.42    0.204   161.08
2021.52    0.201   159.27
2021.62    0.198   157.40
2021.72    0.196   155.48
2021.82    0.193   153.51
2021.92    0.190   151.47
2022.02    0.187   149.37
2022.12    0.184   147.20
2022.22    0.180   144.95
2022.32    0.177   142.62
2022.42    0.174   140.21
2022.52    0.171   137.71
2022.62    0.167   135.10
2022.72    0.164   132.39
2022.82    0.161   129.57
2022.92    0.157   126.61
2023.02    0.153   123.52
2023.12    0.150   120.27
2023.22    0.146   116.86
2023.32    0.142   113.25
2023.42    0.138   109.43
2023.52    0.133   105.36
2023.62    0.129   101.02
2023.72    0.124    96.36
2023.82    0.119    91.31
2023.92    0.114    85.81
2024.02    0.108    79.77
2024.12    0.103    73.08
2024.22    0.097    65.59
2024.32    0.091    57.14
2024.42    0.086    47.56
2024.52    0.081    36.75
2024.62    0.077    24.72
2024.72    0.075    11.77
2024.82    0.075   358.49
2024.92    0.077   345.60
2025.02    0.081   333.74
2025.12    0.087   323.24
2025.22    0.094   314.14
2025.32    0.101   306.33
2025.42    0.109   299.62
2025.52    0.117   293.81
2025.62    0.125   288.74
2025.72    0.133   284.27
2025.82    0.141   280.29
2025.92    0.148   276.72
2026.02    0.155   273.47
2026.12    0.162   270.51
2026.22    0.168   267.78
2026.32    0.175   265.25
2026.42    0.181   262.90
2026.52    0.186   260.69
2026.62    0.192   258.61
2026.72    0.197   256.64
2026.82    0.202   254.77
2026.92    0.207   252.99
2027.02    0.211   251.29
2027.12    0.216   249.65
2027.22    0.220   248.08
2027.32    0.223   246.56
2027.42    0.227   245.10
2027.52    0.231   243.68
2027.62    0.234   242.30
2027.72    0.237   240.95
2027.82    0.240   239.64
2027.92    0.243   238.36
2028.02    0.245   237.11
2028.12    0.248   235.89
2028.22    0.250   234.69
2028.32    0.252   233.51
2028.42    0.254   232.34
2028.52    0.256   231.20
2028.62    0.258   230.07
2028.72    0.259   228.96
2028.82    0.261   227.86
2028.92    0.262   226.77
2029.02    0.263   225.69
2029.12    0.264   224.62
2029.22    0.265   223.56
2029.32    0.266   222.51
2029.42    0.267   221.46
2029.52    0.268   220.42
2029.62    0.268   219.38
2029.72    0.269   218.35
2029.82    0.269   217.32
2029.92    0.269   216.29
2030.02    0.269   215.27
2030.12    0.270   214.24
2030.22    0.269   213.21
2030.32    0.269   212.19
2030.42    0.269   211.16
2030.52    0.269   210.13
2030.62    0.268   209.10
2030.72    0.268   208.07
2030.82    0.267   207.03
2030.92    0.267   205.98
2031.02    0.266   204.94
2031.12    0.265   203.88
2031.22    0.264   202.82
2031.32    0.263   201.75
2031.42    0.262   200.67

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 16:03:56