Double Star Calculator - Orbit

Orbital Elements for HDS3316

WDS:	HDS3316	WDS ID/Discoverer
P:	19.290	Orbital period (years)
a:	0.21719999999999998	Semi-major axis (arcseconds)
i:	116.6	Inclination (degrees)
Ω:	208.6	Longitude of ascending node (degrees)
T:	2019.030	Epoch of periastron passage (year)
e:	0.444	Eccentricity
ω:	142.1	Longitude of periastron (degrees)
Start-Year:	2015.355	Year
End-Year:	2034.645	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HDS3316
Position:	231639.72+193717.0	Epoch-2000 right ascension and declination
WDS-ID:	23167+1937	WDS designation
Discoverer Code:	HDS3316	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	.	HD catalog number
Hipparcos number:	114922	Hipparcos catalog number
V1:	11.93	Magnitude of the primary
V2:	12.08	Magnitude of the secondary
Equinox:		Equinox
Date:	2020	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:	Mit2021	Reference

Double Star Orbit for HDS3316

WDS 6th Orbit including measures of HDS3316

-- 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 HDS3316

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.203   241.97
--------------------------
2015.36    0.211   198.22
2015.45    0.206   197.41
2015.55    0.201   196.55
2015.65    0.196   195.66
2015.75    0.191   194.71
2015.85    0.185   193.71
2015.95    0.180   192.65
2016.05    0.174   191.52
2016.15    0.168   190.31
2016.25    0.162   189.00
2016.35    0.156   187.60
2016.45    0.149   186.08
2016.55    0.143   184.42
2016.65    0.136   182.60
2016.75    0.129   180.60
2016.85    0.123   178.37
2016.95    0.116   175.89
2017.05    0.109   173.09
2017.15    0.102   169.92
2017.25    0.095   166.30
2017.35    0.089   162.14
2017.45    0.083   157.34
2017.55    0.077   151.79
2017.65    0.072   145.38
2017.75    0.067   138.06
2017.85    0.064   129.83
2017.95    0.062   120.84
2018.05    0.061   111.39
2018.15    0.061   101.88
2018.25    0.063    92.75
2018.35    0.066    84.30
2018.45    0.070    76.71
2018.55    0.075    70.01
2018.65    0.080    64.15
2018.75    0.086    59.02
2018.85    0.091    54.52
2018.95    0.097    50.53
2019.05    0.102    46.96
2019.15    0.107    43.74
2019.25    0.112    40.81
2019.35    0.116    38.10
2019.45    0.120    35.57
2019.55    0.124    33.20
2019.65    0.127    30.94
2019.75    0.129    28.78
2019.85    0.131    26.69
2019.95    0.132    24.65
2020.05    0.133    22.65
2020.15    0.134    20.68
2020.25    0.134    18.72
2020.35    0.134    16.76
2020.45    0.134    14.80
2020.55    0.133    12.82
2020.65    0.132    10.81
2020.75    0.131     8.77
2020.85    0.130     6.70
2020.95    0.128     4.57
2021.05    0.126     2.39
2021.15    0.125     0.15
2021.25    0.123   357.85
2021.35    0.121   355.47
2021.45    0.119   353.03
2021.55    0.117   350.50
2021.65    0.115   347.89
2021.75    0.114   345.20
2021.85    0.112   342.42
2021.95    0.110   339.57
2022.05    0.109   336.63
2022.15    0.108   333.62
2022.25    0.107   330.54
2022.35    0.106   327.41
2022.45    0.105   324.22
2022.55    0.104   320.99
2022.65    0.104   317.74
2022.75    0.104   314.48
2022.85    0.104   311.23
2022.95    0.105   307.99
2023.05    0.105   304.79
2023.15    0.106   301.63
2023.25    0.107   298.53
2023.35    0.109   295.51
2023.45    0.110   292.56
2023.55    0.112   289.71
2023.65    0.114   286.94
2023.75    0.116   284.27
2023.85    0.118   281.71
2023.95    0.121   279.24
2024.05    0.124   276.87
2024.15    0.126   274.61
2024.25    0.129   272.44
2024.35    0.132   270.37
2024.45    0.135   268.38
2024.55    0.138   266.49
2024.65    0.141   264.68
2024.75    0.144   262.95
2024.85    0.148   261.29
2024.95    0.151   259.71
2025.05    0.154   258.20
2025.15    0.158   256.75
2025.25    0.161   255.36
2025.35    0.165   254.03
2025.45    0.168   252.75
2025.55    0.172   251.53
2025.65    0.175   250.35
2025.75    0.178   249.22
2025.85    0.182   248.13
2025.95    0.185   247.08
2026.05    0.189   246.07
2026.15    0.192   245.09
2026.25    0.195   244.15
2026.35    0.199   243.24
2026.45    0.202   242.36
2026.55    0.205   241.50
2026.65    0.208   240.68
2026.75    0.211   239.87
2026.85    0.215   239.10
2026.95    0.218   238.34
2027.05    0.221   237.60
2027.15    0.224   236.89
2027.25    0.227   236.19
2027.35    0.230   235.51
2027.45    0.232   234.85
2027.55    0.235   234.20
2027.65    0.238   233.57
2027.75    0.241   232.95
2027.85    0.243   232.35
2027.95    0.246   231.76
2028.05    0.248   231.18
2028.15    0.251   230.61
2028.25    0.253   230.05
2028.35    0.255   229.51
2028.45    0.257   228.97
2028.55    0.260   228.44
2028.65    0.262   227.92
2028.75    0.264   227.41
2028.85    0.266   226.90
2028.95    0.268   226.41
2029.05    0.269   225.92
2029.15    0.271   225.43
2029.25    0.273   224.95
2029.35    0.274   224.48
2029.45    0.276   224.02
2029.55    0.277   223.55
2029.65    0.278   223.10
2029.75    0.280   222.64
2029.85    0.281   222.19
2029.95    0.282   221.75
2030.05    0.283   221.30
2030.15    0.284   220.86
2030.25    0.285   220.43
2030.35    0.285   219.99
2030.45    0.286   219.56
2030.55    0.286   219.13
2030.65    0.287   218.70
2030.75    0.287   218.27
2030.85    0.288   217.84
2030.95    0.288   217.41
2031.05    0.288   216.99
2031.15    0.288   216.56
2031.25    0.288   216.13
2031.35    0.287   215.70
2031.45    0.287   215.28
2031.55    0.286   214.85
2031.65    0.286   214.42
2031.75    0.285   213.98
2031.85    0.284   213.55
2031.95    0.284   213.11
2032.05    0.282   212.67
2032.15    0.281   212.22
2032.25    0.280   211.77
2032.35    0.279   211.32
2032.45    0.277   210.87
2032.55    0.276   210.40
2032.65    0.274   209.94
2032.75    0.272   209.46
2032.85    0.270   208.98
2032.95    0.268   208.49
2033.05    0.266   208.00
2033.15    0.263   207.49
2033.25    0.261   206.98
2033.35    0.258   206.45
2033.45    0.255   205.92
2033.55    0.252   205.37
2033.65    0.249   204.81
2033.75    0.246   204.23
2033.85    0.243   203.64
2033.95    0.239   203.03
2034.05    0.236   202.41
2034.15    0.232   201.76
2034.25    0.228   201.09
2034.35    0.224   200.40
2034.45    0.219   199.68
2034.55    0.215   198.93

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 18:49:12