Double Star Calculator - Orbit

Orbital Elements for HDS3356

WDS:	HDS3356	WDS ID/Discoverer
P:	16.349	Orbital period (years)
a:	0.225	Semi-major axis (arcseconds)
i:	74.775	Inclination (degrees)
Ω:	141.788	Longitude of ascending node (degrees)
T:	1989.145	Epoch of periastron passage (year)
e:	0.543	Eccentricity
ω:	87.745	Longitude of periastron (degrees)
Start-Year:	2016.8255	Year
End-Year:	2033.1745	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HDS3356
Position:	233324.06+425047.8	Epoch-2000 right ascension and declination
WDS-ID:	23334+4251	WDS designation
Discoverer Code:	HDS3356	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	221613	HD catalog number
Hipparcos number:	116259	Hipparcos catalog number
V1:	7.36	Magnitude of the primary
V2:	9.97	Magnitude of the secondary
Equinox:		Equinox
Date:		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:	JAA2023	Reference

Double Star Orbit for HDS3356

WDS 6th Orbit including measures of HDS3356

-- 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 HDS3356

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.174   344.24
--------------------------
2016.83    0.147   111.56
2016.93    0.149   112.69
2017.03    0.152   113.77
2017.13    0.155   114.81
2017.23    0.157   115.82
2017.33    0.160   116.80
2017.43    0.162   117.75
2017.53    0.165   118.67
2017.63    0.167   119.56
2017.73    0.169   120.43
2017.83    0.171   121.28
2017.93    0.173   122.11
2018.03    0.175   122.92
2018.13    0.177   123.71
2018.23    0.179   124.49
2018.33    0.180   125.25
2018.43    0.182   126.00
2018.53    0.183   126.73
2018.63    0.184   127.46
2018.73    0.185   128.18
2018.83    0.186   128.90
2018.93    0.187   129.60
2019.03    0.187   130.31
2019.13    0.187   131.01
2019.23    0.187   131.71
2019.33    0.187   132.42
2019.43    0.186   133.13
2019.53    0.185   133.84
2019.63    0.184   134.56
2019.73    0.182   135.29
2019.83    0.180   136.04
2019.93    0.178   136.81
2020.03    0.175   137.60
2020.13    0.172   138.41
2020.23    0.168   139.26
2020.33    0.164   140.15
2020.43    0.159   141.10
2020.53    0.154   142.10
2020.63    0.147   143.18
2020.73    0.141   144.37
2020.83    0.133   145.68
2020.93    0.125   147.16
2021.03    0.116   148.86
2021.13    0.105   150.88
2021.23    0.095   153.34
2021.33    0.083   156.46
2021.43    0.071   160.63
2021.53    0.058   166.58
2021.63    0.046   175.80
2021.73    0.035   191.34
2021.83    0.028   217.58
2021.93    0.028   250.34
2022.03    0.036   274.78
2022.13    0.048   289.05
2022.23    0.060   297.61
2022.33    0.073   303.21
2022.43    0.085   307.17
2022.53    0.097   310.15
2022.63    0.108   312.51
2022.73    0.118   314.45
2022.83    0.127   316.09
2022.93    0.136   317.51
2023.03    0.143   318.78
2023.13    0.151   319.91
2023.23    0.157   320.95
2023.33    0.163   321.91
2023.43    0.168   322.81
2023.53    0.173   323.66
2023.63    0.177   324.46
2023.73    0.181   325.23
2023.83    0.184   325.97
2023.93    0.187   326.69
2024.03    0.189   327.38
2024.13    0.191   328.06
2024.23    0.193   328.73
2024.33    0.194   329.39
2024.43    0.195   330.04
2024.53    0.196   330.68
2024.63    0.197   331.32
2024.73    0.197   331.95
2024.83    0.197   332.59
2024.93    0.197   333.22
2025.03    0.196   333.86
2025.13    0.196   334.50
2025.23    0.195   335.14
2025.33    0.194   335.79
2025.43    0.193   336.45
2025.53    0.192   337.11
2025.63    0.190   337.78
2025.73    0.189   338.47
2025.83    0.187   339.16
2025.93    0.186   339.87
2026.03    0.184   340.59
2026.13    0.182   341.33
2026.23    0.180   342.08
2026.33    0.177   342.85
2026.43    0.175   343.64
2026.53    0.173   344.45
2026.63    0.171   345.29
2026.73    0.168   346.14
2026.83    0.166   347.03
2026.93    0.163   347.94
2027.03    0.160   348.88
2027.13    0.158   349.85
2027.23    0.155   350.86
2027.33    0.152   351.90
2027.43    0.149   352.98
2027.53    0.147   354.10
2027.63    0.144   355.26
2027.73    0.141   356.48
2027.83    0.138   357.74
2027.93    0.135   359.05
2028.03    0.133     0.41
2028.13    0.130     1.84
2028.23    0.127     3.33
2028.33    0.124     4.88
2028.43    0.122     6.51
2028.53    0.119     8.20
2028.63    0.117     9.97
2028.73    0.114    11.82
2028.83    0.112    13.75
2028.93    0.109    15.77
2029.03    0.107    17.87
2029.13    0.105    20.06
2029.23    0.103    22.34
2029.33    0.101    24.71
2029.43    0.099    27.16
2029.53    0.098    29.70
2029.63    0.096    32.32
2029.73    0.095    35.02
2029.83    0.094    37.79
2029.93    0.093    40.61
2030.03    0.092    43.49
2030.13    0.092    46.41
2030.23    0.091    49.36
2030.33    0.091    52.32
2030.43    0.091    55.28
2030.53    0.091    58.23
2030.63    0.092    61.15
2030.73    0.093    64.04
2030.83    0.094    66.88
2030.93    0.095    69.66
2031.03    0.096    72.37
2031.13    0.097    75.01
2031.23    0.099    77.57
2031.33    0.101    80.04
2031.43    0.102    82.43
2031.53    0.104    84.73
2031.63    0.107    86.94
2031.73    0.109    89.06
2031.83    0.111    91.09
2031.93    0.113    93.05
2032.03    0.116    94.91
2032.13    0.118    96.71
2032.23    0.121    98.42
2032.33    0.124   100.06
2032.43    0.126   101.64
2032.53    0.129   103.14
2032.63    0.132   104.59
2032.73    0.135   105.98
2032.83    0.137   107.31
2032.93    0.140   108.59
2033.03    0.143   109.82
2033.13    0.145   111.00

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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 18:51:42