Double Star Calculator - Orbit

Orbital Elements for HDS2445
WDS: HDS2445 WDS ID/Discoverer
P: 44.370 Orbital period (years)
a: 0.2791 Semi-major axis (arcseconds)
i: 96.8 Inclination (degrees)
Ω: 84.6 Longitude of ascending node (degrees)
T: 2010.600 Epoch of periastron passage (year)
e: 0.1266 Eccentricity
ω: 153.7 Longitude of periastron (degrees)
Start-Year: 2002.815 Year
End-Year: 2047.185 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for HDS2445
Position: 171734.67+102459.3 Epoch-2000 right ascension and declination
WDS-ID: 17176+1025 WDS designation
Discoverer Code: HDS2445 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 156498 HD catalog number
Hipparcos number: 84595 Hipparcos catalog number
V1: 8.86 Magnitude of the primary
V2: 10.25 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2024 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: Tok2024b Reference

Double Star Orbit for HDS2445



WDS 6th Orbit including measures of HDS2445

-- 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 HDS2445
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.123   100.26
--------------------------
2002.82    0.069    57.93
2002.91    0.065    56.27
2003.01    0.061    54.40
2003.11    0.058    52.31
2003.21    0.054    49.95
2003.31    0.051    47.28
2003.41    0.048    44.24
2003.51    0.045    40.77
2003.61    0.042    36.79
2003.71    0.039    32.25
2003.81    0.037    27.07
2003.91    0.035    21.22
2004.01    0.033    14.68
2004.11    0.032     7.54
2004.21    0.031   359.95
2004.31    0.031   352.14
2004.41    0.031   344.40
2004.51    0.032   336.98
2004.61    0.034   330.09
2004.71    0.035   323.85
2004.81    0.038   318.30
2004.91    0.040   313.40
2005.01    0.043   309.12
2005.11    0.046   305.37
2005.21    0.049   302.10
2005.31    0.052   299.22
2005.41    0.056   296.69
2005.51    0.059   294.45
2005.61    0.063   292.46
2005.71    0.066   290.69
2005.81    0.070   289.09
2005.91    0.074   287.66
2006.01    0.077   286.36
2006.11    0.081   285.18
2006.21    0.085   284.10
2006.31    0.089   283.11
2006.41    0.092   282.20
2006.51    0.096   281.36
2006.61    0.100   280.59
2006.71    0.103   279.86
2006.81    0.107   279.19
2006.91    0.111   278.57
2007.01    0.114   277.98
2007.11    0.118   277.43
2007.21    0.121   276.91
2007.31    0.125   276.42
2007.41    0.129   275.96
2007.51    0.132   275.52
2007.61    0.136   275.11
2007.71    0.139   274.71
2007.81    0.142   274.34
2007.91    0.146   273.98
2008.01    0.149   273.64
2008.11    0.152   273.32
2008.21    0.156   273.00
2008.31    0.159   272.70
2008.41    0.162   272.41
2008.51    0.165   272.14
2008.61    0.168   271.87
2008.71    0.171   271.61
2008.81    0.174   271.37
2008.91    0.177   271.13
2009.01    0.180   270.89
2009.11    0.183   270.67
2009.21    0.186   270.45
2009.31    0.189   270.24
2009.41    0.191   270.03
2009.51    0.194   269.83
2009.61    0.197   269.64
2009.71    0.199   269.45
2009.81    0.202   269.27
2009.91    0.204   269.08
2010.01    0.206   268.91
2010.11    0.209   268.74
2010.21    0.211   268.57
2010.31    0.213   268.40
2010.41    0.215   268.24
2010.51    0.217   268.08
2010.61    0.219   267.93
2010.71    0.221   267.77
2010.81    0.223   267.62
2010.91    0.225   267.47
2011.01    0.226   267.33
2011.11    0.228   267.18
2011.21    0.230   267.04
2011.31    0.231   266.90
2011.41    0.233   266.77
2011.51    0.234   266.63
2011.61    0.235   266.49
2011.71    0.237   266.36
2011.81    0.238   266.23
2011.91    0.239   266.10
2012.01    0.240   265.97
2012.11    0.241   265.84
2012.21    0.242   265.71
2012.31    0.243   265.59
2012.41    0.243   265.46
2012.51    0.244   265.34
2012.61    0.245   265.21
2012.71    0.245   265.09
2012.81    0.246   264.96
2012.91    0.246   264.84
2013.01    0.246   264.72
2013.11    0.247   264.60
2013.21    0.247   264.47
2013.31    0.247   264.35
2013.41    0.247   264.23
2013.51    0.247   264.11
2013.61    0.247   263.99
2013.71    0.247   263.87
2013.81    0.246   263.74
2013.91    0.246   263.62
2014.01    0.246   263.50
2014.11    0.245   263.38
2014.21    0.245   263.25
2014.31    0.244   263.13
2014.41    0.244   263.00
2014.51    0.243   262.88
2014.61    0.242   262.75
2014.71    0.241   262.62
2014.81    0.240   262.50
2014.91    0.239   262.37
2015.01    0.238   262.24
2015.11    0.237   262.11
2015.21    0.236   261.97
2015.31    0.235   261.84
2015.41    0.234   261.71
2015.51    0.232   261.57
2015.61    0.231   261.43
2015.71    0.229   261.29
2015.81    0.228   261.15
2015.91    0.226   261.00
2016.01    0.225   260.86
2016.11    0.223   260.71
2016.21    0.221   260.56
2016.31    0.219   260.41
2016.41    0.218   260.25
2016.51    0.216   260.09
2016.61    0.214   259.93
2016.71    0.212   259.77
2016.81    0.210   259.60
2016.91    0.207   259.43
2017.01    0.205   259.26
2017.11    0.203   259.08
2017.21    0.201   258.90
2017.31    0.198   258.71
2017.41    0.196   258.52
2017.51    0.194   258.32
2017.61    0.191   258.12
2017.71    0.189   257.92
2017.81    0.186   257.71
2017.91    0.184   257.49
2018.01    0.181   257.27
2018.11    0.178   257.04
2018.21    0.176   256.80
2018.31    0.173   256.55
2018.41    0.170   256.30
2018.51    0.167   256.04
2018.61    0.165   255.77
2018.71    0.162   255.49
2018.81    0.159   255.20
2018.91    0.156   254.90
2019.01    0.153   254.59
2019.11    0.150   254.27
2019.21    0.147   253.93
2019.31    0.144   253.58
2019.41    0.141   253.21
2019.51    0.138   252.83
2019.61    0.134   252.43
2019.71    0.131   252.01
2019.81    0.128   251.56
2019.91    0.125   251.10
2020.01    0.122   250.61
2020.11    0.119   250.10
2020.21    0.115   249.55
2020.31    0.112   248.98
2020.41    0.109   248.37
2020.51    0.106   247.72
2020.61    0.102   247.04
2020.71    0.099   246.30
2020.81    0.096   245.52
2020.91    0.092   244.68
2021.01    0.089   243.78
2021.11    0.086   242.80
2021.21    0.083   241.76
2021.31    0.079   240.62
2021.41    0.076   239.39
2021.51    0.073   238.05
2021.61    0.070   236.59
2021.71    0.067   234.99
2021.81    0.063   233.23
2021.91    0.060   231.29
2022.01    0.057   229.15
2022.11    0.055   226.78
2022.21    0.052   224.15
2022.31    0.049   221.22
2022.41    0.046   217.95
2022.51    0.044   214.32
2022.61    0.042   210.29
2022.71    0.040   205.83
2022.81    0.038   200.93
2022.91    0.037   195.61
2023.01    0.036   189.91
2023.11    0.035   183.90
2023.21    0.034   177.70
2023.31    0.035   171.46
2023.41    0.035   165.30
2023.51    0.036   159.36
2023.61    0.037   153.76
2023.71    0.039   148.55
2023.81    0.040   143.77
2023.91    0.042   139.43
2024.01    0.045   135.51
2024.11    0.047   131.98
2024.21    0.050   128.82
2024.31    0.052   125.97
2024.41    0.055   123.41
2024.51    0.058   121.11
2024.61    0.061   119.03
2024.71    0.064   117.14
2024.81    0.067   115.43
2024.91    0.071   113.87
2025.01    0.074   112.44
2025.11    0.077   111.14
2025.21    0.080   109.94
2025.31    0.084   108.83
2025.41    0.087   107.81
2025.51    0.090   106.86
2025.61    0.093   105.98
2025.71    0.097   105.16
2025.81    0.100   104.39
2025.91    0.103   103.68
2026.01    0.107   103.00
2026.11    0.110   102.37
2026.21    0.113   101.78
2026.31    0.117   101.22
2026.41    0.120   100.69
2026.51    0.123   100.18
2026.61    0.127    99.71
2026.71    0.130    99.26
2026.81    0.133    98.83
2026.91    0.136    98.42
2027.01    0.140    98.03
2027.11    0.143    97.65
2027.21    0.146    97.30
2027.31    0.149    96.96
2027.41    0.152    96.63
2027.51    0.155    96.31
2027.61    0.159    96.01
2027.71    0.162    95.72
2027.81    0.165    95.44
2027.91    0.168    95.18
2028.01    0.171    94.92
2028.11    0.174    94.67
2028.21    0.177    94.43
2028.31    0.180    94.19
2028.41    0.183    93.97
2028.51    0.186    93.75
2028.61    0.189    93.53
2028.71    0.191    93.33
2028.81    0.194    93.13
2028.91    0.197    92.94
2029.01    0.200    92.75
2029.11    0.203    92.56
2029.21    0.205    92.39
2029.31    0.208    92.21
2029.41    0.211    92.04
2029.51    0.213    91.88
2029.61    0.216    91.72
2029.71    0.219    91.56
2029.81    0.221    91.41
2029.91    0.224    91.26
2030.01    0.226    91.11
2030.11    0.229    90.97
2030.21    0.231    90.83
2030.31    0.234    90.69
2030.41    0.236    90.55
2030.51    0.238    90.42
2030.61    0.241    90.29
2030.71    0.243    90.17
2030.81    0.245    90.04
2030.91    0.247    89.92
2031.01    0.250    89.80
2031.11    0.252    89.68
2031.21    0.254    89.57
2031.31    0.256    89.45
2031.41    0.258    89.34
2031.51    0.260    89.23
2031.61    0.262    89.12
2031.71    0.264    89.01
2031.81    0.266    88.91
2031.91    0.268    88.80
2032.01    0.270    88.70
2032.11    0.271    88.60
2032.21    0.273    88.50
2032.31    0.275    88.40
2032.41    0.276    88.30
2032.51    0.278    88.20
2032.61    0.280    88.11
2032.71    0.281    88.01
2032.81    0.283    87.92
2032.91    0.284    87.83
2033.01    0.286    87.74
2033.11    0.287    87.65
2033.21    0.289    87.56
2033.31    0.290    87.47
2033.41    0.291    87.38
2033.51    0.292    87.29
2033.61    0.294    87.21
2033.71    0.295    87.12
2033.81    0.296    87.04
2033.91    0.297    86.95
2034.01    0.298    86.87
2034.11    0.299    86.78
2034.21    0.300    86.70
2034.31    0.301    86.62
2034.41    0.302    86.54
2034.51    0.303    86.46
2034.61    0.303    86.38
2034.71    0.304    86.30
2034.81    0.305    86.22
2034.91    0.306    86.14
2035.01    0.306    86.06
2035.11    0.307    85.98
2035.21    0.307    85.90
2035.31    0.308    85.82
2035.41    0.308    85.74
2035.51    0.309    85.66
2035.61    0.309    85.59
2035.71    0.309    85.51
2035.81    0.310    85.43
2035.91    0.310    85.35
2036.01    0.310    85.28
2036.11    0.310    85.20
2036.21    0.310    85.12
2036.31    0.310    85.04
2036.41    0.310    84.97
2036.51    0.310    84.89
2036.61    0.310    84.81
2036.71    0.310    84.74
2036.81    0.310    84.66
2036.91    0.310    84.58
2037.01    0.309    84.50
2037.11    0.309    84.43
2037.21    0.309    84.35
2037.31    0.308    84.27
2037.41    0.308    84.19
2037.51    0.308    84.11
2037.61    0.307    84.04
2037.71    0.306    83.96
2037.81    0.306    83.88
2037.91    0.305    83.80
2038.01    0.304    83.72
2038.11    0.304    83.64
2038.21    0.303    83.56
2038.31    0.302    83.48
2038.41    0.301    83.39
2038.51    0.300    83.31
2038.61    0.299    83.23
2038.71    0.298    83.15
2038.81    0.297    83.06
2038.91    0.296    82.98
2039.01    0.295    82.89
2039.11    0.294    82.81
2039.21    0.292    82.72
2039.31    0.291    82.63
2039.41    0.290    82.55
2039.51    0.288    82.46
2039.61    0.287    82.37
2039.71    0.285    82.28
2039.81    0.284    82.19
2039.91    0.282    82.09
2040.01    0.281    82.00
2040.11    0.279    81.90
2040.21    0.277    81.81
2040.31    0.276    81.71
2040.41    0.274    81.61
2040.51    0.272    81.51
2040.61    0.270    81.41
2040.71    0.268    81.31
2040.81    0.266    81.21
2040.91    0.264    81.10
2041.01    0.262    80.99
2041.11    0.260    80.88
2041.21    0.258    80.77
2041.31    0.256    80.66
2041.41    0.254    80.55
2041.51    0.251    80.43
2041.61    0.249    80.31
2041.71    0.247    80.19
2041.81    0.244    80.07
2041.91    0.242    79.94
2042.01    0.239    79.82
2042.11    0.237    79.68
2042.21    0.234    79.55
2042.31    0.232    79.41
2042.41    0.229    79.27
2042.51    0.227    79.13
2042.61    0.224    78.98
2042.71    0.221    78.83
2042.81    0.218    78.68
2042.91    0.215    78.52
2043.01    0.213    78.36
2043.11    0.210    78.19
2043.21    0.207    78.02
2043.31    0.204    77.85
2043.41    0.201    77.67
2043.51    0.198    77.48
2043.61    0.195    77.29
2043.71    0.192    77.09
2043.81    0.188    76.88
2043.91    0.185    76.67
2044.01    0.182    76.45
2044.11    0.179    76.22
2044.21    0.176    75.98
2044.31    0.172    75.74
2044.41    0.169    75.48
2044.51    0.166    75.22
2044.61    0.162    74.94
2044.71    0.159    74.65
2044.81    0.155    74.35
2044.91    0.152    74.04
2045.01    0.148    73.71
2045.11    0.145    73.36
2045.21    0.141    73.00
2045.31    0.138    72.62
2045.41    0.134    72.21
2045.51    0.130    71.79
2045.61    0.127    71.34
2045.71    0.123    70.87
2045.81    0.119    70.36
2045.91    0.116    69.82
2046.01    0.112    69.25
2046.11    0.108    68.64
2046.21    0.105    67.99
2046.31    0.101    67.28
2046.41    0.097    66.53
2046.51    0.093    65.71
2046.61    0.090    64.82
2046.71    0.086    63.86
2046.81    0.082    62.81
2046.91    0.078    61.66
2047.01    0.075    60.39
2047.11    0.071    59.00






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 17:36:06



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