Double Star Calculator - Orbit

Orbital Elements for HEI498
WDS: HEI498 WDS ID/Discoverer
P: 60.000 Orbital period (years)
a: 0.118 Semi-major axis (arcseconds)
i: 120.1 Inclination (degrees)
Ω: 294.1 Longitude of ascending node (degrees)
T: 2022.800 Epoch of periastron passage (year)
e: 0.105 Eccentricity
ω: 170.7 Longitude of periastron (degrees)
Start-Year: 1995.0 Year
End-Year: 2055.0 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for HEI498
Position: 104859.98-744913.2 Epoch-2000 right ascension and declination
WDS-ID: 10490-7449 WDS designation
Discoverer Code: HEI498 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 94081 HD catalog number
Hipparcos number: . Hipparcos catalog number
V1: 9.8 Magnitude of the primary
V2: 9.8 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2020 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: Tok2021c Reference

Double Star Orbit for HEI498



WDS 6th Orbit including measures of HEI498

-- 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 HEI498
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.103   104.81
--------------------------
1995.00    0.130   293.36
1995.10    0.130   293.12
1995.20    0.130   292.87
1995.30    0.130   292.63
1995.40    0.130   292.38
1995.50    0.130   292.13
1995.60    0.130   291.88
1995.70    0.130   291.64
1995.80    0.129   291.39
1995.90    0.129   291.14
1996.00    0.129   290.89
1996.10    0.129   290.64
1996.20    0.129   290.39
1996.30    0.129   290.14
1996.40    0.129   289.89
1996.50    0.128   289.63
1996.60    0.128   289.38
1996.70    0.128   289.13
1996.80    0.128   288.87
1996.90    0.128   288.62
1997.00    0.128   288.36
1997.10    0.127   288.11
1997.20    0.127   287.85
1997.30    0.127   287.59
1997.40    0.127   287.33
1997.50    0.126   287.07
1997.60    0.126   286.81
1997.70    0.126   286.55
1997.80    0.126   286.28
1997.90    0.125   286.02
1998.00    0.125   285.75
1998.10    0.125   285.49
1998.20    0.124   285.22
1998.30    0.124   284.95
1998.40    0.124   284.68
1998.50    0.124   284.40
1998.60    0.123   284.13
1998.70    0.123   283.86
1998.80    0.122   283.58
1998.90    0.122   283.30
1999.00    0.122   283.02
1999.10    0.121   282.74
1999.20    0.121   282.45
1999.30    0.121   282.17
1999.40    0.120   281.88
1999.50    0.120   281.59
1999.60    0.119   281.30
1999.70    0.119   281.01
1999.80    0.119   280.71
1999.90    0.118   280.42
2000.00    0.118   280.12
2000.10    0.117   279.82
2000.20    0.117   279.51
2000.30    0.116   279.20
2000.40    0.116   278.90
2000.50    0.115   278.59
2000.60    0.115   278.27
2000.70    0.115   277.96
2000.80    0.114   277.64
2000.90    0.114   277.31
2001.00    0.113   276.99
2001.10    0.113   276.66
2001.20    0.112   276.33
2001.30    0.112   276.00
2001.40    0.111   275.66
2001.50    0.110   275.32
2001.60    0.110   274.98
2001.70    0.109   274.63
2001.80    0.109   274.28
2001.90    0.108   273.93
2002.00    0.108   273.57
2002.10    0.107   273.21
2002.20    0.107   272.84
2002.30    0.106   272.48
2002.40    0.105   272.10
2002.50    0.105   271.72
2002.60    0.104   271.34
2002.70    0.104   270.96
2002.80    0.103   270.57
2002.90    0.102   270.17
2003.00    0.102   269.77
2003.10    0.101   269.37
2003.20    0.101   268.96
2003.30    0.100   268.54
2003.40    0.099   268.12
2003.50    0.099   267.70
2003.60    0.098   267.27
2003.70    0.097   266.83
2003.80    0.097   266.39
2003.90    0.096   265.94
2004.00    0.095   265.49
2004.10    0.095   265.03
2004.20    0.094   264.56
2004.30    0.094   264.09
2004.40    0.093   263.61
2004.50    0.092   263.12
2004.60    0.092   262.63
2004.70    0.091   262.13
2004.80    0.090   261.62
2004.90    0.090   261.10
2005.00    0.089   260.58
2005.10    0.088   260.05
2005.20    0.088   259.51
2005.30    0.087   258.96
2005.40    0.086   258.40
2005.50    0.085   257.84
2005.60    0.085   257.26
2005.70    0.084   256.68
2005.80    0.083   256.08
2005.90    0.083   255.48
2006.00    0.082   254.87
2006.10    0.081   254.24
2006.20    0.081   253.61
2006.30    0.080   252.97
2006.40    0.079   252.31
2006.50    0.079   251.65
2006.60    0.078   250.97
2006.70    0.077   250.28
2006.80    0.077   249.58
2006.90    0.076   248.87
2007.00    0.076   248.14
2007.10    0.075   247.41
2007.20    0.074   246.66
2007.30    0.074   245.90
2007.40    0.073   245.12
2007.50    0.072   244.33
2007.60    0.072   243.53
2007.70    0.071   242.71
2007.80    0.071   241.88
2007.90    0.070   241.04
2008.00    0.069   240.18
2008.10    0.069   239.31
2008.20    0.068   238.42
2008.30    0.068   237.52
2008.40    0.067   236.60
2008.50    0.067   235.67
2008.60    0.066   234.72
2008.70    0.066   233.76
2008.80    0.065   232.78
2008.90    0.065   231.79
2009.00    0.064   230.78
2009.10    0.064   229.76
2009.20    0.063   228.73
2009.30    0.063   227.67
2009.40    0.062   226.61
2009.50    0.062   225.53
2009.60    0.062   224.43
2009.70    0.061   223.32
2009.80    0.061   222.20
2009.90    0.060   221.07
2010.00    0.060   219.92
2010.10    0.060   218.76
2010.20    0.059   217.59
2010.30    0.059   216.40
2010.40    0.059   215.21
2010.50    0.059   214.01
2010.60    0.059   212.79
2010.70    0.058   211.57
2010.80    0.058   210.34
2010.90    0.058   209.11
2011.00    0.058   207.87
2011.10    0.058   206.62
2011.20    0.058   205.36
2011.30    0.058   204.11
2011.40    0.057   202.85
2011.50    0.057   201.59
2011.60    0.057   200.32
2011.70    0.057   199.06
2011.80    0.057   197.80
2011.90    0.058   196.54
2012.00    0.058   195.28
2012.10    0.058   194.03
2012.20    0.058   192.78
2012.30    0.058   191.54
2012.40    0.058   190.30
2012.50    0.058   189.07
2012.60    0.058   187.85
2012.70    0.059   186.63
2012.80    0.059   185.43
2012.90    0.059   184.23
2013.00    0.059   183.04
2013.10    0.060   181.87
2013.20    0.060   180.71
2013.30    0.060   179.56
2013.40    0.061   178.42
2013.50    0.061   177.29
2013.60    0.061   176.18
2013.70    0.062   175.08
2013.80    0.062   173.99
2013.90    0.063   172.92
2014.00    0.063   171.86
2014.10    0.063   170.82
2014.20    0.064   169.79
2014.30    0.064   168.78
2014.40    0.065   167.78
2014.50    0.065   166.79
2014.60    0.066   165.82
2014.70    0.066   164.87
2014.80    0.067   163.93
2014.90    0.067   163.00
2015.00    0.068   162.09
2015.10    0.068   161.19
2015.20    0.069   160.30
2015.30    0.069   159.43
2015.40    0.070   158.58
2015.50    0.071   157.73
2015.60    0.071   156.91
2015.70    0.072   156.09
2015.80    0.072   155.29
2015.90    0.073   154.50
2016.00    0.073   153.72
2016.10    0.074   152.95
2016.20    0.075   152.20
2016.30    0.075   151.46
2016.40    0.076   150.73
2016.50    0.076   150.01
2016.60    0.077   149.30
2016.70    0.078   148.61
2016.80    0.078   147.92
2016.90    0.079   147.25
2017.00    0.079   146.58
2017.10    0.080   145.93
2017.20    0.081   145.28
2017.30    0.081   144.64
2017.40    0.082   144.02
2017.50    0.082   143.40
2017.60    0.083   142.79
2017.70    0.084   142.19
2017.80    0.084   141.60
2017.90    0.085   141.02
2018.00    0.085   140.44
2018.10    0.086   139.87
2018.20    0.087   139.31
2018.30    0.087   138.76
2018.40    0.088   138.21
2018.50    0.088   137.67
2018.60    0.089   137.14
2018.70    0.089   136.61
2018.80    0.090   136.09
2018.90    0.090   135.58
2019.00    0.091   135.07
2019.10    0.091   134.57
2019.20    0.092   134.08
2019.30    0.092   133.59
2019.40    0.093   133.10
2019.50    0.093   132.62
2019.60    0.094   132.15
2019.70    0.094   131.67
2019.80    0.095   131.21
2019.90    0.095   130.75
2020.00    0.096   130.29
2020.10    0.096   129.84
2020.20    0.097   129.39
2020.30    0.097   128.95
2020.40    0.097   128.51
2020.50    0.098   128.07
2020.60    0.098   127.64
2020.70    0.099   127.21
2020.80    0.099   126.78
2020.90    0.099   126.36
2021.00    0.100   125.94
2021.10    0.100   125.52
2021.20    0.101   125.11
2021.30    0.101   124.70
2021.40    0.101   124.29
2021.50    0.101   123.88
2021.60    0.102   123.48
2021.70    0.102   123.08
2021.80    0.102   122.68
2021.90    0.103   122.28
2022.00    0.103   121.89
2022.10    0.103   121.50
2022.20    0.103   121.11
2022.30    0.104   120.72
2022.40    0.104   120.33
2022.50    0.104   119.94
2022.60    0.104   119.56
2022.70    0.104   119.18
2022.80    0.105   118.79
2022.90    0.105   118.41
2023.00    0.105   118.04
2023.10    0.105   117.66
2023.20    0.105   117.28
2023.30    0.105   116.90
2023.40    0.105   116.53
2023.50    0.105   116.15
2023.60    0.106   115.78
2023.70    0.106   115.40
2023.80    0.106   115.03
2023.90    0.106   114.66
2024.00    0.106   114.28
2024.10    0.106   113.91
2024.20    0.106   113.54
2024.30    0.106   113.17
2024.40    0.106   112.79
2024.50    0.106   112.42
2024.60    0.106   112.05
2024.70    0.106   111.68
2024.80    0.106   111.30
2024.90    0.106   110.93
2025.00    0.105   110.55
2025.10    0.105   110.18
2025.20    0.105   109.80
2025.30    0.105   109.43
2025.40    0.105   109.05
2025.50    0.105   108.67
2025.60    0.105   108.29
2025.70    0.105   107.91
2025.80    0.104   107.53
2025.90    0.104   107.14
2026.00    0.104   106.76
2026.10    0.104   106.37
2026.20    0.104   105.98
2026.30    0.103   105.59
2026.40    0.103   105.20
2026.50    0.103   104.81
2026.60    0.103   104.42
2026.70    0.102   104.02
2026.80    0.102   103.62
2026.90    0.102   103.22
2027.00    0.101   102.81
2027.10    0.101   102.41
2027.20    0.101   102.00
2027.30    0.100   101.59
2027.40    0.100   101.17
2027.50    0.100   100.76
2027.60    0.099   100.34
2027.70    0.099    99.91
2027.80    0.099    99.49
2027.90    0.098    99.06
2028.00    0.098    98.63
2028.10    0.098    98.19
2028.20    0.097    97.75
2028.30    0.097    97.31
2028.40    0.096    96.86
2028.50    0.096    96.41
2028.60    0.095    95.95
2028.70    0.095    95.49
2028.80    0.095    95.03
2028.90    0.094    94.56
2029.00    0.094    94.09
2029.10    0.093    93.61
2029.20    0.093    93.12
2029.30    0.092    92.64
2029.40    0.092    92.14
2029.50    0.091    91.64
2029.60    0.091    91.14
2029.70    0.090    90.63
2029.80    0.090    90.11
2029.90    0.089    89.59
2030.00    0.089    89.06
2030.10    0.088    88.53
2030.20    0.087    87.99
2030.30    0.087    87.44
2030.40    0.086    86.89
2030.50    0.086    86.32
2030.60    0.085    85.76
2030.70    0.085    85.18
2030.80    0.084    84.60
2030.90    0.084    84.00
2031.00    0.083    83.40
2031.10    0.083    82.80
2031.20    0.082    82.18
2031.30    0.081    81.56
2031.40    0.081    80.92
2031.50    0.080    80.28
2031.60    0.080    79.63
2031.70    0.079    78.97
2031.80    0.079    78.30
2031.90    0.078    77.62
2032.00    0.077    76.93
2032.10    0.077    76.23
2032.20    0.076    75.52
2032.30    0.076    74.80
2032.40    0.075    74.07
2032.50    0.075    73.33
2032.60    0.074    72.58
2032.70    0.074    71.81
2032.80    0.073    71.04
2032.90    0.073    70.25
2033.00    0.072    69.45
2033.10    0.071    68.64
2033.20    0.071    67.82
2033.30    0.070    66.99
2033.40    0.070    66.14
2033.50    0.069    65.28
2033.60    0.069    64.41
2033.70    0.068    63.53
2033.80    0.068    62.63
2033.90    0.067    61.72
2034.00    0.067    60.80
2034.10    0.067    59.86
2034.20    0.066    58.92
2034.30    0.066    57.96
2034.40    0.065    56.99
2034.50    0.065    56.00
2034.60    0.064    55.00
2034.70    0.064    54.00
2034.80    0.064    52.97
2034.90    0.063    51.94
2035.00    0.063    50.90
2035.10    0.063    49.84
2035.20    0.062    48.78
2035.30    0.062    47.70
2035.40    0.062    46.61
2035.50    0.061    45.51
2035.60    0.061    44.41
2035.70    0.061    43.29
2035.80    0.061    42.16
2035.90    0.061    41.03
2036.00    0.060    39.89
2036.10    0.060    38.74
2036.20    0.060    37.59
2036.30    0.060    36.43
2036.40    0.060    35.27
2036.50    0.060    34.10
2036.60    0.060    32.93
2036.70    0.060    31.75
2036.80    0.059    30.57
2036.90    0.059    29.39
2037.00    0.059    28.21
2037.10    0.059    27.03
2037.20    0.059    25.86
2037.30    0.060    24.68
2037.40    0.060    23.50
2037.50    0.060    22.33
2037.60    0.060    21.16
2037.70    0.060    20.00
2037.80    0.060    18.84
2037.90    0.060    17.68
2038.00    0.060    16.54
2038.10    0.061    15.40
2038.20    0.061    14.26
2038.30    0.061    13.14
2038.40    0.061    12.02
2038.50    0.061    10.91
2038.60    0.062     9.82
2038.70    0.062     8.73
2038.80    0.062     7.65
2038.90    0.063     6.59
2039.00    0.063     5.53
2039.10    0.063     4.49
2039.20    0.064     3.46
2039.30    0.064     2.44
2039.40    0.065     1.43
2039.50    0.065     0.44
2039.60    0.065   359.45
2039.70    0.066   358.48
2039.80    0.066   357.53
2039.90    0.067   356.58
2040.00    0.067   355.65
2040.10    0.068   354.74
2040.20    0.068   353.83
2040.30    0.069   352.94
2040.40    0.069   352.06
2040.50    0.070   351.20
2040.60    0.070   350.35
2040.70    0.071   349.51
2040.80    0.071   348.68
2040.90    0.072   347.87
2041.00    0.072   347.06
2041.10    0.073   346.27
2041.20    0.074   345.50
2041.30    0.074   344.73
2041.40    0.075   343.98
2041.50    0.075   343.24
2041.60    0.076   342.51
2041.70    0.076   341.79
2041.80    0.077   341.08
2041.90    0.078   340.39
2042.00    0.078   339.70
2042.10    0.079   339.03
2042.20    0.080   338.36
2042.30    0.080   337.71
2042.40    0.081   337.07
2042.50    0.081   336.43
2042.60    0.082   335.81
2042.70    0.083   335.19
2042.80    0.083   334.59
2042.90    0.084   333.99
2043.00    0.085   333.41
2043.10    0.085   332.83
2043.20    0.086   332.26
2043.30    0.087   331.70
2043.40    0.087   331.15
2043.50    0.088   330.60
2043.60    0.088   330.06
2043.70    0.089   329.54
2043.80    0.090   329.01
2043.90    0.090   328.50
2044.00    0.091   327.99
2044.10    0.092   327.49
2044.20    0.092   327.00
2044.30    0.093   326.51
2044.40    0.094   326.03
2044.50    0.094   325.56
2044.60    0.095   325.09
2044.70    0.095   324.63
2044.80    0.096   324.18
2044.90    0.097   323.73
2045.00    0.097   323.29
2045.10    0.098   322.85
2045.20    0.098   322.42
2045.30    0.099   321.99
2045.40    0.100   321.57
2045.50    0.100   321.15
2045.60    0.101   320.74
2045.70    0.102   320.33
2045.80    0.102   319.93
2045.90    0.103   319.53
2046.00    0.103   319.14
2046.10    0.104   318.75
2046.20    0.104   318.37
2046.30    0.105   317.99
2046.40    0.106   317.61
2046.50    0.106   317.24
2046.60    0.107   316.87
2046.70    0.107   316.51
2046.80    0.108   316.15
2046.90    0.108   315.79
2047.00    0.109   315.44
2047.10    0.109   315.09
2047.20    0.110   314.74
2047.30    0.110   314.40
2047.40    0.111   314.06
2047.50    0.111   313.72
2047.60    0.112   313.39
2047.70    0.112   313.06
2047.80    0.113   312.73
2047.90    0.113   312.40
2048.00    0.114   312.08
2048.10    0.114   311.76
2048.20    0.115   311.45
2048.30    0.115   311.13
2048.40    0.116   310.82
2048.50    0.116   310.51
2048.60    0.117   310.20
2048.70    0.117   309.90
2048.80    0.118   309.60
2048.90    0.118   309.30
2049.00    0.118   309.00
2049.10    0.119   308.70
2049.20    0.119   308.41
2049.30    0.120   308.12
2049.40    0.120   307.83
2049.50    0.120   307.54
2049.60    0.121   307.25
2049.70    0.121   306.97
2049.80    0.122   306.69
2049.90    0.122   306.40
2050.00    0.122   306.13
2050.10    0.123   305.85
2050.20    0.123   305.57
2050.30    0.123   305.30
2050.40    0.124   305.02
2050.50    0.124   304.75
2050.60    0.124   304.48
2050.70    0.125   304.21
2050.80    0.125   303.94
2050.90    0.125   303.68
2051.00    0.125   303.41
2051.10    0.126   303.15
2051.20    0.126   302.88
2051.30    0.126   302.62
2051.40    0.126   302.36
2051.50    0.127   302.10
2051.60    0.127   301.84
2051.70    0.127   301.58
2051.80    0.127   301.33
2051.90    0.128   301.07
2052.00    0.128   300.81
2052.10    0.128   300.56
2052.20    0.128   300.31
2052.30    0.128   300.05
2052.40    0.129   299.80
2052.50    0.129   299.55
2052.60    0.129   299.30
2052.70    0.129   299.05
2052.80    0.129   298.79
2052.90    0.129   298.55
2053.00    0.129   298.30
2053.10    0.129   298.05
2053.20    0.130   297.80
2053.30    0.130   297.55
2053.40    0.130   297.30
2053.50    0.130   297.06
2053.60    0.130   296.81
2053.70    0.130   296.56
2053.80    0.130   296.32
2053.90    0.130   296.07
2054.00    0.130   295.82
2054.10    0.130   295.58
2054.20    0.130   295.33
2054.30    0.130   295.09
2054.40    0.130   294.84
2054.50    0.130   294.59
2054.60    0.130   294.35
2054.70    0.130   294.10
2054.80    0.130   293.86
2054.90    0.130   293.61






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 16:31:00



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