Double Star Calculator - Orbit

Orbital Elements for HDS2327

WDS:	HDS2327	WDS ID/Discoverer
P:	34.870	Orbital period (years)
a:	0.165	Semi-major axis (arcseconds)
i:	131.4	Inclination (degrees)
Ω:	21.0	Longitude of ascending node (degrees)
T:	2018.190	Epoch of periastron passage (year)
e:	0.309	Eccentricity
ω:	110.1	Longitude of periastron (degrees)
Start-Year:	2007.565	Year
End-Year:	2042.435	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HDS2327
Position:	162748.96-411829.8	Epoch-2000 right ascension and declination
WDS-ID:	16278-4118	WDS designation
Discoverer Code:	HDS2327	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	148138	HD catalog number
Hipparcos number:	80629	Hipparcos catalog number
V1:	8.42	Magnitude of the primary
V2:	10.22	Magnitude of the secondary
Equinox:		Equinox
Date:	2021	Date of last observation
Orbit grade:	3	Orbit grade, ranging from : 1 = Definitive 2 = Good 3 = Reliable 4 = Preliminary 5 = Indeterminate
Flags:		Flags
Ephemerides:		Ephemerides
Code:	Tok2021f	Reference

Double Star Orbit for HDS2327

WDS 6th Orbit including measures of HDS2327

-- 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 HDS2327

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.144   162.67
--------------------------
2007.57    0.181    40.31
2007.66    0.181    39.77
2007.76    0.181    39.23
2007.86    0.181    38.69
2007.96    0.181    38.16
2008.06    0.181    37.62
2008.16    0.181    37.08
2008.26    0.181    36.54
2008.36    0.181    36.00
2008.46    0.180    35.45
2008.56    0.180    34.91
2008.66    0.180    34.37
2008.76    0.180    33.82
2008.86    0.179    33.27
2008.96    0.179    32.72
2009.06    0.179    32.17
2009.16    0.178    31.62
2009.26    0.178    31.06
2009.36    0.178    30.50
2009.46    0.177    29.94
2009.56    0.177    29.37
2009.66    0.176    28.81
2009.76    0.176    28.24
2009.86    0.175    27.66
2009.96    0.175    27.08
2010.06    0.174    26.50
2010.16    0.173    25.91
2010.26    0.173    25.32
2010.36    0.172    24.73
2010.46    0.171    24.13
2010.56    0.170    23.52
2010.66    0.170    22.91
2010.76    0.169    22.29
2010.86    0.168    21.67
2010.96    0.167    21.04
2011.06    0.166    20.40
2011.16    0.165    19.76
2011.26    0.164    19.10
2011.36    0.163    18.44
2011.46    0.162    17.77
2011.56    0.161    17.10
2011.66    0.160    16.41
2011.76    0.159    15.71
2011.86    0.158    15.01
2011.96    0.156    14.29
2012.06    0.155    13.56
2012.16    0.154    12.82
2012.26    0.153    12.07
2012.36    0.151    11.30
2012.46    0.150    10.52
2012.56    0.148     9.72
2012.66    0.147     8.91
2012.76    0.145     8.09
2012.86    0.144     7.24
2012.96    0.142     6.38
2013.06    0.141     5.50
2013.16    0.139     4.59
2013.26    0.138     3.67
2013.36    0.136     2.73
2013.46    0.134     1.76
2013.56    0.133     0.76
2013.66    0.131   359.74
2013.76    0.129   358.69
2013.86    0.127   357.62
2013.96    0.125   356.51
2014.06    0.124   355.37
2014.16    0.122   354.19
2014.26    0.120   352.98
2014.36    0.118   351.73
2014.46    0.116   350.44
2014.56    0.114   349.10
2014.66    0.112   347.72
2014.76    0.110   346.30
2014.86    0.108   344.82
2014.96    0.106   343.29
2015.06    0.105   341.70
2015.16    0.103   340.05
2015.26    0.101   338.34
2015.36    0.099   336.57
2015.46    0.097   334.73
2015.56    0.095   332.82
2015.66    0.094   330.84
2015.76    0.092   328.78
2015.86    0.090   326.65
2015.96    0.089   324.44
2016.06    0.087   322.15
2016.16    0.086   319.77
2016.26    0.084   317.32
2016.36    0.083   314.79
2016.46    0.082   312.18
2016.56    0.081   309.49
2016.66    0.080   306.74
2016.76    0.079   303.92
2016.86    0.078   301.04
2016.96    0.077   298.12
2017.06    0.077   295.15
2017.16    0.077   292.15
2017.26    0.076   289.12
2017.36    0.076   286.09
2017.46    0.076   283.06
2017.56    0.077   280.04
2017.66    0.077   277.04
2017.76    0.077   274.08
2017.86    0.078   271.15
2017.96    0.079   268.28
2018.06    0.080   265.47
2018.16    0.081   262.72
2018.26    0.082   260.04
2018.36    0.083   257.43
2018.46    0.084   254.89
2018.56    0.085   252.44
2018.66    0.087   250.05
2018.76    0.088   247.75
2018.86    0.090   245.52
2018.96    0.091   243.37
2019.06    0.093   241.29
2019.16    0.095   239.28
2019.26    0.096   237.34
2019.36    0.098   235.46
2019.46    0.100   233.65
2019.56    0.101   231.90
2019.66    0.103   230.20
2019.76    0.105   228.56
2019.86    0.106   226.97
2019.96    0.108   225.43
2020.06    0.110   223.94
2020.16    0.111   222.49
2020.26    0.113   221.08
2020.36    0.114   219.70
2020.46    0.116   218.37
2020.56    0.117   217.07
2020.66    0.119   215.80
2020.76    0.120   214.57
2020.86    0.122   213.36
2020.96    0.123   212.18
2021.06    0.124   211.02
2021.16    0.126   209.89
2021.26    0.127   208.78
2021.36    0.128   207.69
2021.46    0.129   206.62
2021.56    0.130   205.58
2021.66    0.131   204.54
2021.76    0.132   203.53
2021.86    0.133   202.53
2021.96    0.134   201.54
2022.06    0.135   200.57
2022.16    0.136   199.61
2022.26    0.137   198.66
2022.36    0.138   197.73
2022.46    0.139   196.80
2022.56    0.139   195.89
2022.66    0.140   194.98
2022.76    0.141   194.08
2022.86    0.141   193.19
2022.96    0.142   192.30
2023.06    0.142   191.43
2023.16    0.143   190.56
2023.26    0.143   189.69
2023.36    0.144   188.83
2023.46    0.144   187.98
2023.56    0.144   187.13
2023.66    0.145   186.28
2023.76    0.145   185.43
2023.86    0.145   184.59
2023.96    0.145   183.76
2024.06    0.146   182.92
2024.16    0.146   182.09
2024.26    0.146   181.26
2024.36    0.146   180.43
2024.46    0.146   179.60
2024.56    0.146   178.77
2024.66    0.146   177.95
2024.76    0.146   177.12
2024.86    0.146   176.30
2024.96    0.146   175.47
2025.06    0.146   174.65
2025.16    0.146   173.82
2025.26    0.146   172.99
2025.36    0.146   172.17
2025.46    0.146   171.34
2025.56    0.146   170.51
2025.66    0.146   169.68
2025.76    0.146   168.85
2025.86    0.146   168.01
2025.96    0.145   167.18
2026.06    0.145   166.34
2026.16    0.145   165.50
2026.26    0.145   164.66
2026.36    0.145   163.82
2026.46    0.144   162.97
2026.56    0.144   162.12
2026.66    0.144   161.27
2026.76    0.144   160.42
2026.86    0.144   159.56
2026.96    0.143   158.70
2027.06    0.143   157.84
2027.16    0.143   156.97
2027.26    0.143   156.11
2027.36    0.142   155.23
2027.46    0.142   154.36
2027.56    0.142   153.48
2027.66    0.142   152.60
2027.76    0.141   151.72
2027.86    0.141   150.84
2027.96    0.141   149.95
2028.06    0.141   149.06
2028.16    0.140   148.16
2028.26    0.140   147.26
2028.36    0.140   146.36
2028.46    0.140   145.46
2028.56    0.140   144.56
2028.66    0.139   143.65
2028.76    0.139   142.74
2028.86    0.139   141.82
2028.96    0.139   140.91
2029.06    0.139   139.99
2029.16    0.138   139.07
2029.26    0.138   138.15
2029.36    0.138   137.22
2029.46    0.138   136.29
2029.56    0.138   135.37
2029.66    0.138   134.44
2029.76    0.138   133.50
2029.86    0.138   132.57
2029.96    0.138   131.64
2030.06    0.137   130.70
2030.16    0.137   129.77
2030.26    0.137   128.83
2030.36    0.137   127.89
2030.46    0.137   126.96
2030.56    0.137   126.02
2030.66    0.137   125.08
2030.76    0.137   124.14
2030.86    0.137   123.21
2030.96    0.137   122.27
2031.06    0.137   121.33
2031.16    0.138   120.40
2031.26    0.138   119.46
2031.36    0.138   118.53
2031.46    0.138   117.60
2031.56    0.138   116.67
2031.66    0.138   115.74
2031.76    0.138   114.82
2031.86    0.138   113.89
2031.96    0.139   112.97
2032.06    0.139   112.05
2032.16    0.139   111.14
2032.26    0.139   110.22
2032.36    0.139   109.31
2032.46    0.140   108.40
2032.56    0.140   107.50
2032.66    0.140   106.60
2032.76    0.141   105.70
2032.86    0.141   104.81
2032.96    0.141   103.92
2033.06    0.142   103.04
2033.16    0.142   102.16
2033.26    0.142   101.28
2033.36    0.143   100.41
2033.46    0.143    99.54
2033.56    0.143    98.68
2033.66    0.144    97.82
2033.76    0.144    96.97
2033.86    0.145    96.12
2033.96    0.145    95.27
2034.06    0.145    94.44
2034.16    0.146    93.60
2034.26    0.146    92.77
2034.36    0.147    91.95
2034.46    0.147    91.13
2034.56    0.148    90.32
2034.66    0.148    89.51
2034.76    0.149    88.71
2034.86    0.149    87.92
2034.96    0.150    87.12
2035.06    0.150    86.34
2035.16    0.151    85.56
2035.26    0.151    84.78
2035.36    0.152    84.02
2035.46    0.152    83.25
2035.56    0.153    82.49
2035.66    0.154    81.74
2035.76    0.154    80.99
2035.86    0.155    80.25
2035.96    0.155    79.52
2036.06    0.156    78.78
2036.16    0.156    78.06
2036.26    0.157    77.34
2036.36    0.157    76.62
2036.46    0.158    75.91
2036.56    0.159    75.21
2036.66    0.159    74.51
2036.76    0.160    73.81
2036.86    0.160    73.12
2036.96    0.161    72.44
2037.06    0.162    71.76
2037.16    0.162    71.08
2037.26    0.163    70.41
2037.36    0.163    69.75
2037.46    0.164    69.08
2037.56    0.164    68.43
2037.66    0.165    67.78
2037.76    0.165    67.13
2037.86    0.166    66.48
2037.96    0.167    65.85
2038.06    0.167    65.21
2038.16    0.168    64.58
2038.26    0.168    63.95
2038.36    0.169    63.33
2038.46    0.169    62.71
2038.56    0.170    62.10
2038.66    0.170    61.49
2038.76    0.171    60.88
2038.86    0.171    60.27
2038.96    0.172    59.67
2039.06    0.172    59.08
2039.16    0.173    58.48
2039.26    0.173    57.89
2039.36    0.174    57.30
2039.46    0.174    56.72
2039.56    0.175    56.14
2039.66    0.175    55.56
2039.76    0.175    54.98
2039.86    0.176    54.41
2039.96    0.176    53.84
2040.06    0.177    53.27
2040.16    0.177    52.71
2040.26    0.177    52.14
2040.36    0.178    51.58
2040.46    0.178    51.02
2040.56    0.178    50.47
2040.66    0.179    49.91
2040.76    0.179    49.36
2040.86    0.179    48.81
2040.96    0.179    48.26
2041.06    0.180    47.71
2041.16    0.180    47.16
2041.26    0.180    46.62
2041.36    0.180    46.08
2041.46    0.181    45.53
2041.56    0.181    44.99
2041.66    0.181    44.45
2041.76    0.181    43.91
2041.86    0.181    43.37
2041.96    0.181    42.83
2042.06    0.181    42.29
2042.16    0.181    41.76
2042.26    0.181    41.22
2042.36    0.181    40.68

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 17:26:52