Double Star Calculator - Orbit

Orbital Elements for HU304

WDS:	HU304	WDS ID/Discoverer
P:	54.770	Orbital period (years)
a:	0.188	Semi-major axis (arcseconds)
i:	34.2	Inclination (degrees)
Ω:	239.8	Longitude of ascending node (degrees)
T:	1937.240	Epoch of periastron passage (year)
e:	0.72	Eccentricity
ω:	152.0	Longitude of periastron (degrees)
Start-Year:	1997.615	Year
End-Year:	2052.385	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HU304
Position:	042351.84+092739.5	Epoch-2000 right ascension and declination
WDS-ID:	04239+0928	WDS designation
Discoverer Code:	HU304	Discover designation and components
ADS number:	3182	Aitken Double Star catalog
HD number:	27820	HD catalog number
Hipparcos number:	20522	Hipparcos catalog number
V1:	5.8	Magnitude of the primary
V2:	5.9	Magnitude of the secondary
Equinox:		Equinox
Date:	1997	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:	Hrt2000b	Reference

Double Star Orbit for HU304

WDS 6th Orbit including measures of HU304

-- 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 HU304

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.304   225.88
--------------------------
1997.62    0.131   159.74
1997.71    0.133   160.50
1997.81    0.134   161.25
1997.91    0.136   161.99
1998.01    0.137   162.70
1998.11    0.139   163.40
1998.21    0.140   164.08
1998.31    0.142   164.75
1998.41    0.144   165.41
1998.51    0.145   166.05
1998.61    0.147   166.67
1998.71    0.148   167.28
1998.81    0.150   167.89
1998.91    0.151   168.47
1999.01    0.153   169.05
1999.11    0.154   169.62
1999.21    0.156   170.17
1999.31    0.157   170.72
1999.41    0.159   171.25
1999.51    0.160   171.78
1999.61    0.162   172.29
1999.71    0.163   172.80
1999.81    0.165   173.29
1999.91    0.166   173.78
2000.01    0.167   174.26
2000.11    0.169   174.73
2000.21    0.170   175.19
2000.31    0.172   175.65
2000.41    0.173   176.10
2000.51    0.175   176.54
2000.61    0.176   176.97
2000.71    0.177   177.40
2000.81    0.179   177.82
2000.91    0.180   178.24
2001.01    0.181   178.65
2001.11    0.183   179.05
2001.21    0.184   179.44
2001.31    0.185   179.83
2001.41    0.187   180.22
2001.51    0.188   180.60
2001.61    0.189   180.97
2001.71    0.191   181.34
2001.81    0.192   181.71
2001.91    0.193   182.07
2002.01    0.195   182.42
2002.11    0.196   182.77
2002.21    0.197   183.12
2002.31    0.198   183.46
2002.41    0.200   183.79
2002.51    0.201   184.13
2002.61    0.202   184.45
2002.71    0.203   184.78
2002.81    0.205   185.10
2002.91    0.206   185.42
2003.01    0.207   185.73
2003.11    0.208   186.04
2003.21    0.209   186.34
2003.31    0.211   186.65
2003.41    0.212   186.95
2003.51    0.213   187.24
2003.61    0.214   187.53
2003.71    0.215   187.82
2003.81    0.216   188.11
2003.91    0.217   188.39
2004.01    0.219   188.67
2004.11    0.220   188.95
2004.21    0.221   189.23
2004.31    0.222   189.50
2004.41    0.223   189.77
2004.51    0.224   190.03
2004.61    0.225   190.30
2004.71    0.226   190.56
2004.81    0.227   190.82
2004.91    0.228   191.08
2005.01    0.229   191.33
2005.11    0.231   191.58
2005.21    0.232   191.83
2005.31    0.233   192.08
2005.41    0.234   192.33
2005.51    0.235   192.57
2005.61    0.236   192.81
2005.71    0.237   193.05
2005.81    0.238   193.29
2005.91    0.239   193.52
2006.01    0.240   193.75
2006.11    0.241   193.99
2006.21    0.242   194.21
2006.31    0.243   194.44
2006.41    0.244   194.67
2006.51    0.244   194.89
2006.61    0.245   195.11
2006.71    0.246   195.33
2006.81    0.247   195.55
2006.91    0.248   195.77
2007.01    0.249   195.99
2007.11    0.250   196.20
2007.21    0.251   196.41
2007.31    0.252   196.62
2007.41    0.253   196.83
2007.51    0.254   197.04
2007.61    0.254   197.25
2007.71    0.255   197.45
2007.81    0.256   197.66
2007.91    0.257   197.86
2008.01    0.258   198.06
2008.11    0.259   198.26
2008.21    0.260   198.46
2008.31    0.260   198.66
2008.41    0.261   198.85
2008.51    0.262   199.05
2008.61    0.263   199.24
2008.71    0.264   199.43
2008.81    0.264   199.63
2008.91    0.265   199.82
2009.01    0.266   200.01
2009.11    0.267   200.19
2009.21    0.267   200.38
2009.31    0.268   200.57
2009.41    0.269   200.75
2009.51    0.270   200.93
2009.61    0.270   201.12
2009.71    0.271   201.30
2009.81    0.272   201.48
2009.91    0.273   201.66
2010.01    0.273   201.84
2010.11    0.274   202.02
2010.21    0.275   202.19
2010.31    0.275   202.37
2010.41    0.276   202.55
2010.51    0.277   202.72
2010.61    0.277   202.89
2010.71    0.278   203.07
2010.81    0.279   203.24
2010.91    0.279   203.41
2011.01    0.280   203.58
2011.11    0.281   203.75
2011.21    0.281   203.92
2011.31    0.282   204.09
2011.41    0.283   204.25
2011.51    0.283   204.42
2011.61    0.284   204.59
2011.71    0.284   204.75
2011.81    0.285   204.92
2011.91    0.286   205.08
2012.01    0.286   205.24
2012.11    0.287   205.41
2012.21    0.287   205.57
2012.31    0.288   205.73
2012.41    0.288   205.89
2012.51    0.289   206.05
2012.61    0.290   206.21
2012.71    0.290   206.37
2012.81    0.291   206.53
2012.91    0.291   206.68
2013.01    0.292   206.84
2013.11    0.292   207.00
2013.21    0.293   207.15
2013.31    0.293   207.31
2013.41    0.294   207.46
2013.51    0.294   207.62
2013.61    0.295   207.77
2013.71    0.295   207.92
2013.81    0.296   208.08
2013.91    0.296   208.23
2014.01    0.297   208.38
2014.11    0.297   208.53
2014.21    0.297   208.68
2014.31    0.298   208.83
2014.41    0.298   208.98
2014.51    0.299   209.13
2014.61    0.299   209.28
2014.71    0.300   209.43
2014.81    0.300   209.58
2014.91    0.300   209.73
2015.01    0.301   209.88
2015.11    0.301   210.02
2015.21    0.302   210.17
2015.31    0.302   210.32
2015.41    0.302   210.46
2015.51    0.303   210.61
2015.61    0.303   210.75
2015.71    0.303   210.90
2015.81    0.304   211.04
2015.91    0.304   211.19
2016.01    0.304   211.33
2016.11    0.305   211.48
2016.21    0.305   211.62
2016.31    0.305   211.76
2016.41    0.306   211.91
2016.51    0.306   212.05
2016.61    0.306   212.19
2016.71    0.306   212.33
2016.81    0.307   212.47
2016.91    0.307   212.62
2017.01    0.307   212.76
2017.11    0.308   212.90
2017.21    0.308   213.04
2017.31    0.308   213.18
2017.41    0.308   213.32
2017.51    0.309   213.46
2017.61    0.309   213.60
2017.71    0.309   213.74
2017.81    0.309   213.88
2017.91    0.309   214.02
2018.01    0.310   214.16
2018.11    0.310   214.30
2018.21    0.310   214.44
2018.31    0.310   214.57
2018.41    0.310   214.71
2018.51    0.311   214.85
2018.61    0.311   214.99
2018.71    0.311   215.13
2018.81    0.311   215.26
2018.91    0.311   215.40
2019.01    0.311   215.54
2019.11    0.312   215.68
2019.21    0.312   215.81
2019.31    0.312   215.95
2019.41    0.312   216.09
2019.51    0.312   216.23
2019.61    0.312   216.36
2019.71    0.312   216.50
2019.81    0.312   216.64
2019.91    0.312   216.77
2020.01    0.313   216.91
2020.11    0.313   217.05
2020.21    0.313   217.18
2020.31    0.313   217.32
2020.41    0.313   217.46
2020.51    0.313   217.59
2020.61    0.313   217.73
2020.71    0.313   217.86
2020.81    0.313   218.00
2020.91    0.313   218.14
2021.01    0.313   218.27
2021.11    0.313   218.41
2021.21    0.313   218.54
2021.31    0.313   218.68
2021.41    0.313   218.82
2021.51    0.313   218.95
2021.61    0.313   219.09
2021.71    0.313   219.23
2021.81    0.313   219.36
2021.91    0.313   219.50
2022.01    0.313   219.63
2022.11    0.313   219.77
2022.21    0.313   219.91
2022.31    0.313   220.04
2022.41    0.313   220.18
2022.51    0.312   220.32
2022.61    0.312   220.45
2022.71    0.312   220.59
2022.81    0.312   220.73
2022.91    0.312   220.86
2023.01    0.312   221.00
2023.11    0.312   221.14
2023.21    0.312   221.27
2023.31    0.312   221.41
2023.41    0.311   221.55
2023.51    0.311   221.69
2023.61    0.311   221.82
2023.71    0.311   221.96
2023.81    0.311   222.10
2023.91    0.311   222.24
2024.01    0.311   222.38
2024.11    0.310   222.51
2024.21    0.310   222.65
2024.31    0.310   222.79
2024.41    0.310   222.93
2024.51    0.310   223.07
2024.61    0.309   223.21
2024.71    0.309   223.35
2024.81    0.309   223.49
2024.91    0.309   223.63
2025.01    0.308   223.77
2025.11    0.308   223.91
2025.21    0.308   224.05
2025.31    0.308   224.19
2025.41    0.307   224.33
2025.51    0.307   224.47
2025.61    0.307   224.61
2025.71    0.306   224.75
2025.81    0.306   224.90
2025.91    0.306   225.04
2026.01    0.306   225.18
2026.11    0.305   225.32
2026.21    0.305   225.47
2026.31    0.305   225.61
2026.41    0.304   225.76
2026.51    0.304   225.90
2026.61    0.304   226.04
2026.71    0.303   226.19
2026.81    0.303   226.33
2026.91    0.302   226.48
2027.01    0.302   226.63
2027.11    0.302   226.77
2027.21    0.301   226.92
2027.31    0.301   227.07
2027.41    0.300   227.21
2027.51    0.300   227.36
2027.61    0.300   227.51
2027.71    0.299   227.66
2027.81    0.299   227.81
2027.91    0.298   227.96
2028.01    0.298   228.11
2028.11    0.297   228.26
2028.21    0.297   228.41
2028.31    0.296   228.56
2028.41    0.296   228.71
2028.51    0.295   228.87
2028.61    0.295   229.02
2028.71    0.294   229.17
2028.81    0.294   229.33
2028.91    0.293   229.48
2029.01    0.293   229.64
2029.11    0.292   229.79
2029.21    0.292   229.95
2029.31    0.291   230.11
2029.41    0.290   230.26
2029.51    0.290   230.42
2029.61    0.289   230.58
2029.71    0.289   230.74
2029.81    0.288   230.90
2029.91    0.288   231.06
2030.01    0.287   231.22
2030.11    0.286   231.39
2030.21    0.286   231.55
2030.31    0.285   231.71
2030.41    0.284   231.88
2030.51    0.284   232.04
2030.61    0.283   232.21
2030.71    0.282   232.38
2030.81    0.282   232.54
2030.91    0.281   232.71
2031.01    0.280   232.88
2031.11    0.280   233.05
2031.21    0.279   233.22
2031.31    0.278   233.39
2031.41    0.277   233.57
2031.51    0.277   233.74
2031.61    0.276   233.92
2031.71    0.275   234.09
2031.81    0.274   234.27
2031.91    0.274   234.45
2032.01    0.273   234.62
2032.11    0.272   234.80
2032.21    0.271   234.99
2032.31    0.270   235.17
2032.41    0.270   235.35
2032.51    0.269   235.53
2032.61    0.268   235.72
2032.71    0.267   235.91
2032.81    0.266   236.09
2032.91    0.265   236.28
2033.01    0.264   236.47
2033.11    0.264   236.66
2033.21    0.263   236.86
2033.31    0.262   237.05
2033.41    0.261   237.25
2033.51    0.260   237.44
2033.61    0.259   237.64
2033.71    0.258   237.84
2033.81    0.257   238.04
2033.91    0.256   238.24
2034.01    0.255   238.45
2034.11    0.254   238.65
2034.21    0.253   238.86
2034.31    0.252   239.07
2034.41    0.251   239.28
2034.51    0.250   239.49
2034.61    0.249   239.71
2034.71    0.248   239.92
2034.81    0.247   240.14
2034.91    0.246   240.36
2035.01    0.245   240.58
2035.11    0.244   240.81
2035.21    0.243   241.03
2035.31    0.241   241.26
2035.41    0.240   241.49
2035.51    0.239   241.72
2035.61    0.238   241.96
2035.71    0.237   242.19
2035.81    0.236   242.43
2035.91    0.234   242.67
2036.01    0.233   242.92
2036.11    0.232   243.16
2036.21    0.231   243.41
2036.31    0.230   243.66
2036.41    0.228   243.92
2036.51    0.227   244.17
2036.61    0.226   244.43
2036.71    0.225   244.70
2036.81    0.223   244.96
2036.91    0.222   245.23
2037.01    0.221   245.50
2037.11    0.219   245.78
2037.21    0.218   246.06
2037.31    0.217   246.34
2037.41    0.215   246.63
2037.51    0.214   246.92
2037.61    0.212   247.21
2037.71    0.211   247.51
2037.81    0.210   247.81
2037.91    0.208   248.11
2038.01    0.207   248.42
2038.11    0.205   248.74
2038.21    0.204   249.06
2038.31    0.202   249.38
2038.41    0.201   249.71
2038.51    0.199   250.04
2038.61    0.198   250.38
2038.71    0.196   250.72
2038.81    0.195   251.07
2038.91    0.193   251.43
2039.01    0.191   251.79
2039.11    0.190   252.16
2039.21    0.188   252.53
2039.31    0.187   252.91
2039.41    0.185   253.29
2039.51    0.183   253.69
2039.61    0.182   254.09
2039.71    0.180   254.50
2039.81    0.178   254.91
2039.91    0.176   255.34
2040.01    0.175   255.77
2040.11    0.173   256.21
2040.21    0.171   256.67
2040.31    0.169   257.13
2040.41    0.167   257.60
2040.51    0.166   258.08
2040.61    0.164   258.57
2040.71    0.162   259.07
2040.81    0.160   259.59
2040.91    0.158   260.12
2041.01    0.156   260.66
2041.11    0.154   261.21
2041.21    0.152   261.78
2041.31    0.150   262.37
2041.41    0.148   262.97
2041.51    0.146   263.58
2041.61    0.144   264.22
2041.71    0.142   264.87
2041.81    0.140   265.54
2041.91    0.138   266.23
2042.01    0.136   266.95
2042.11    0.133   267.69
2042.21    0.131   268.45
2042.31    0.129   269.23
2042.41    0.127   270.05
2042.51    0.125   270.89
2042.61    0.122   271.77
2042.71    0.120   272.67
2042.81    0.118   273.61
2042.91    0.116   274.59
2043.01    0.113   275.61
2043.11    0.111   276.68
2043.21    0.109   277.78
2043.31    0.106   278.94
2043.41    0.104   280.15
2043.51    0.101   281.42
2043.61    0.099   282.75
2043.71    0.097   284.15
2043.81    0.094   285.62
2043.91    0.092   287.16
2044.01    0.089   288.79
2044.11    0.087   290.52
2044.21    0.084   292.34
2044.31    0.082   294.27
2044.41    0.079   296.32
2044.51    0.077   298.50
2044.61    0.075   300.82
2044.71    0.072   303.29
2044.81    0.070   305.93
2044.91    0.068   308.74
2045.01    0.066   311.75
2045.11    0.063   314.96
2045.21    0.061   318.39
2045.31    0.059   322.06
2045.41    0.058   325.96
2045.51    0.056   330.11
2045.61    0.054   334.51
2045.71    0.053   339.15
2045.81    0.052   344.03
2045.91    0.051   349.11
2046.01    0.050   354.37
2046.11    0.049   359.77
2046.21    0.049     5.27
2046.31    0.049    10.82
2046.41    0.049    16.38
2046.51    0.049    21.90
2046.61    0.050    27.34
2046.71    0.050    32.67
2046.81    0.051    37.86
2046.91    0.052    42.90
2047.01    0.053    47.78
2047.11    0.054    52.49
2047.21    0.055    57.03
2047.31    0.056    61.41
2047.41    0.057    65.62
2047.51    0.058    69.67
2047.61    0.059    73.57
2047.71    0.060    77.32
2047.81    0.061    80.93
2047.91    0.063    84.40
2048.01    0.064    87.74
2048.11    0.065    90.96
2048.21    0.066    94.05
2048.31    0.068    97.03
2048.41    0.069    99.90
2048.51    0.070   102.65
2048.61    0.072   105.31
2048.71    0.073   107.86
2048.81    0.074   110.32
2048.91    0.076   112.69
2049.01    0.077   114.97
2049.11    0.079   117.17
2049.21    0.080   119.28
2049.31    0.082   121.32
2049.41    0.083   123.28
2049.51    0.085   125.17
2049.61    0.086   127.00
2049.71    0.088   128.76
2049.81    0.089   130.46
2049.91    0.091   132.10
2050.01    0.093   133.68
2050.11    0.094   135.21
2050.21    0.096   136.69
2050.31    0.097   138.12
2050.41    0.099   139.50
2050.51    0.101   140.84
2050.61    0.102   142.14
2050.71    0.104   143.39
2050.81    0.106   144.61
2050.91    0.107   145.79
2051.01    0.109   146.93
2051.11    0.110   148.04
2051.21    0.112   149.12
2051.31    0.114   150.16
2051.41    0.115   151.18
2051.51    0.117   152.17
2051.61    0.119   153.13
2051.71    0.120   154.07
2051.81    0.122   154.98
2051.91    0.123   155.86
2052.01    0.125   156.73
2052.11    0.127   157.57
2052.21    0.128   158.39
2052.31    0.130   159.19

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 15:22:51