Double Star Calculator - Orbit

Orbital Elements for MCA55AA,AC
WDS: MCA55AA,AC WDS ID/Discoverer
P: 68.610 Orbital period (years)
a: 0.558 Semi-major axis (arcseconds)
i: 114.7 Inclination (degrees)
Ω: 255.3 Longitude of ascending node (degrees)
T: 2015.400 Epoch of periastron passage (year)
e: 0.7869 Eccentricity
ω: 264.8 Longitude of periastron (degrees)
Start-Year: 1990.695 Year
End-Year: 2059.305 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for MCA55AA,AC
Position: 193043.29+275734.9 Epoch-2000 right ascension and declination
WDS-ID: 19307+2758 WDS designation
Discoverer Code: MCA55AA,AC Discover designation and components
ADS number: 12540 Aitken Double Star catalog
HD number: 183912 HD catalog number
Hipparcos number: 95947 Hipparcos catalog number
V1: 3.37 Magnitude of the primary
V2: 5.16 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2008 Date of last observation
Orbit grade: 3 Orbit grade, ranging from :
1 = Definitive
2 = Good
3 = Reliable
4 = Preliminary
5 = Indeterminate
Flags: n Flags
Ephemerides: Ephemerides
Code: Rbr2018 Reference

Double Star Orbit for MCA55AA,AC



WDS 6th Orbit including measures of MCA55AA,AC

-- 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 MCA55AA,AC
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.444   225.66
--------------------------
1990.69    0.401   153.70
1990.79    0.401   153.44
1990.89    0.400   153.18
1990.99    0.400   152.91
1991.09    0.400   152.65
1991.19    0.400   152.39
1991.29    0.400   152.12
1991.39    0.400   151.86
1991.49    0.399   151.60
1991.59    0.399   151.33
1991.69    0.399   151.07
1991.79    0.399   150.80
1991.89    0.399   150.54
1991.99    0.399   150.27
1992.09    0.398   150.01
1992.19    0.398   149.74
1992.29    0.398   149.48
1992.39    0.398   149.21
1992.49    0.398   148.95
1992.59    0.398   148.68
1992.69    0.398   148.41
1992.79    0.397   148.15
1992.89    0.397   147.88
1992.99    0.397   147.61
1993.09    0.397   147.35
1993.19    0.397   147.08
1993.29    0.397   146.81
1993.39    0.397   146.54
1993.49    0.396   146.27
1993.59    0.396   146.01
1993.69    0.396   145.74
1993.79    0.396   145.47
1993.89    0.396   145.20
1993.99    0.396   144.93
1994.09    0.396   144.66
1994.19    0.395   144.39
1994.29    0.395   144.12
1994.39    0.395   143.85
1994.49    0.395   143.58
1994.59    0.395   143.31
1994.69    0.395   143.04
1994.79    0.395   142.77
1994.89    0.394   142.50
1994.99    0.394   142.23
1995.09    0.394   141.96
1995.19    0.394   141.69
1995.29    0.394   141.42
1995.39    0.394   141.15
1995.49    0.394   140.87
1995.59    0.394   140.60
1995.69    0.393   140.33
1995.79    0.393   140.06
1995.89    0.393   139.79
1995.99    0.393   139.51
1996.09    0.393   139.24
1996.19    0.393   138.97
1996.29    0.393   138.69
1996.39    0.392   138.42
1996.49    0.392   138.15
1996.59    0.392   137.87
1996.69    0.392   137.60
1996.79    0.392   137.32
1996.89    0.392   137.05
1996.99    0.392   136.78
1997.09    0.392   136.50
1997.19    0.391   136.23
1997.29    0.391   135.95
1997.39    0.391   135.68
1997.49    0.391   135.40
1997.59    0.391   135.12
1997.69    0.391   134.85
1997.79    0.391   134.57
1997.89    0.390   134.30
1997.99    0.390   134.02
1998.09    0.390   133.74
1998.19    0.390   133.47
1998.29    0.390   133.19
1998.39    0.390   132.91
1998.49    0.390   132.64
1998.59    0.389   132.36
1998.69    0.389   132.08
1998.79    0.389   131.80
1998.89    0.389   131.52
1998.99    0.389   131.25
1999.09    0.389   130.97
1999.19    0.389   130.69
1999.29    0.388   130.41
1999.39    0.388   130.13
1999.49    0.388   129.85
1999.59    0.388   129.57
1999.69    0.388   129.29
1999.79    0.388   129.01
1999.89    0.387   128.73
1999.99    0.387   128.45
2000.09    0.387   128.17
2000.19    0.387   127.88
2000.29    0.387   127.60
2000.39    0.386   127.32
2000.49    0.386   127.04
2000.59    0.386   126.76
2000.69    0.386   126.47
2000.79    0.386   126.19
2000.89    0.385   125.91
2000.99    0.385   125.62
2001.09    0.385   125.34
2001.19    0.385   125.06
2001.29    0.385   124.77
2001.39    0.384   124.49
2001.49    0.384   124.20
2001.59    0.384   123.91
2001.69    0.384   123.63
2001.79    0.383   123.34
2001.89    0.383   123.06
2001.99    0.383   122.77
2002.09    0.383   122.48
2002.19    0.382   122.19
2002.29    0.382   121.91
2002.39    0.382   121.62
2002.49    0.382   121.33
2002.59    0.381   121.04
2002.69    0.381   120.75
2002.79    0.381   120.46
2002.89    0.380   120.17
2002.99    0.380   119.88
2003.09    0.380   119.58
2003.19    0.379   119.29
2003.29    0.379   119.00
2003.39    0.379   118.71
2003.49    0.378   118.41
2003.59    0.378   118.12
2003.69    0.378   117.82
2003.79    0.377   117.53
2003.89    0.377   117.23
2003.99    0.377   116.93
2004.09    0.376   116.64
2004.19    0.376   116.34
2004.29    0.375   116.04
2004.39    0.375   115.74
2004.49    0.375   115.44
2004.59    0.374   115.14
2004.69    0.374   114.84
2004.79    0.373   114.54
2004.89    0.373   114.23
2004.99    0.372   113.93
2005.09    0.372   113.63
2005.19    0.371   113.32
2005.29    0.371   113.01
2005.39    0.370   112.71
2005.49    0.370   112.40
2005.59    0.369   112.09
2005.69    0.368   111.78
2005.79    0.368   111.47
2005.89    0.367   111.16
2005.99    0.367   110.85
2006.09    0.366   110.53
2006.19    0.365   110.22
2006.29    0.365   109.90
2006.39    0.364   109.58
2006.49    0.363   109.26
2006.59    0.363   108.95
2006.69    0.362   108.62
2006.79    0.361   108.30
2006.89    0.360   107.98
2006.99    0.360   107.65
2007.09    0.359   107.33
2007.19    0.358   107.00
2007.29    0.357   106.67
2007.39    0.356   106.34
2007.49    0.355   106.01
2007.59    0.354   105.67
2007.69    0.354   105.34
2007.79    0.353   105.00
2007.89    0.352   104.66
2007.99    0.351   104.32
2008.09    0.350   103.97
2008.19    0.349   103.63
2008.29    0.347   103.28
2008.39    0.346   102.93
2008.49    0.345   102.58
2008.59    0.344   102.22
2008.69    0.343   101.86
2008.79    0.342   101.50
2008.89    0.340   101.14
2008.99    0.339   100.78
2009.09    0.338   100.41
2009.19    0.336   100.04
2009.29    0.335    99.66
2009.39    0.333    99.29
2009.49    0.332    98.90
2009.59    0.330    98.52
2009.69    0.329    98.13
2009.79    0.327    97.74
2009.89    0.325    97.35
2009.99    0.324    96.95
2010.09    0.322    96.54
2010.19    0.320    96.13
2010.29    0.318    95.72
2010.39    0.316    95.30
2010.49    0.314    94.88
2010.59    0.312    94.45
2010.69    0.310    94.01
2010.79    0.308    93.57
2010.89    0.306    93.12
2010.99    0.303    92.67
2011.09    0.301    92.21
2011.19    0.299    91.74
2011.29    0.296    91.26
2011.39    0.293    90.78
2011.49    0.291    90.28
2011.59    0.288    89.78
2011.69    0.285    89.27
2011.79    0.282    88.74
2011.89    0.279    88.20
2011.99    0.275    87.66
2012.09    0.272    87.09
2012.19    0.269    86.52
2012.29    0.265    85.93
2012.39    0.261    85.32
2012.49    0.257    84.69
2012.59    0.253    84.05
2012.69    0.249    83.38
2012.79    0.245    82.69
2012.89    0.240    81.97
2012.99    0.236    81.23
2013.09    0.231    80.45
2013.19    0.225    79.64
2013.29    0.220    78.79
2013.39    0.214    77.90
2013.49    0.209    76.96
2013.59    0.202    75.96
2013.69    0.196    74.90
2013.79    0.189    73.76
2013.89    0.182    72.54
2013.99    0.175    71.21
2014.09    0.167    69.77
2014.19    0.159    68.18
2014.29    0.150    66.41
2014.39    0.141    64.42
2014.49    0.132    62.16
2014.59    0.122    59.55
2014.69    0.112    56.48
2014.79    0.102    52.79
2014.89    0.092    48.28
2014.99    0.081    42.61
2015.09    0.071    35.34
2015.19    0.062    25.86
2015.29    0.055    13.58
2015.39    0.051   358.41
2015.49    0.050   341.57
2015.59    0.053   325.44
2015.69    0.059   311.85
2015.79    0.067   301.22
2015.89    0.077   293.09
2015.99    0.087   286.82
2016.09    0.098   281.89
2016.19    0.108   277.92
2016.29    0.119   274.66
2016.39    0.129   271.91
2016.49    0.139   269.57
2016.59    0.149   267.53
2016.69    0.158   265.74
2016.79    0.167   264.15
2016.89    0.176   262.71
2016.99    0.184   261.41
2017.09    0.192   260.21
2017.19    0.200   259.12
2017.29    0.207   258.10
2017.39    0.214   257.15
2017.49    0.221   256.26
2017.59    0.228   255.42
2017.69    0.234   254.63
2017.79    0.240   253.89
2017.89    0.246   253.17
2017.99    0.252   252.50
2018.09    0.258   251.85
2018.19    0.263   251.23
2018.29    0.268   250.63
2018.39    0.273   250.06
2018.49    0.278   249.50
2018.59    0.283   248.97
2018.69    0.288   248.45
2018.79    0.292   247.95
2018.89    0.296   247.46
2018.99    0.301   246.99
2019.09    0.305   246.53
2019.19    0.309   246.08
2019.29    0.313   245.65
2019.39    0.316   245.22
2019.49    0.320   244.81
2019.59    0.324   244.40
2019.69    0.327   244.00
2019.79    0.330   243.61
2019.89    0.334   243.23
2019.99    0.337   242.86
2020.09    0.340   242.49
2020.19    0.343   242.13
2020.29    0.346   241.77
2020.39    0.349   241.42
2020.49    0.352   241.08
2020.59    0.355   240.74
2020.69    0.357   240.41
2020.79    0.360   240.08
2020.89    0.363   239.76
2020.99    0.365   239.44
2021.09    0.367   239.13
2021.19    0.370   238.82
2021.29    0.372   238.51
2021.39    0.374   238.21
2021.49    0.377   237.91
2021.59    0.379   237.62
2021.69    0.381   237.32
2021.79    0.383   237.04
2021.89    0.385   236.75
2021.99    0.387   236.47
2022.09    0.389   236.19
2022.19    0.391   235.91
2022.29    0.393   235.64
2022.39    0.395   235.36
2022.49    0.396   235.10
2022.59    0.398   234.83
2022.69    0.400   234.56
2022.79    0.402   234.30
2022.89    0.403   234.04
2022.99    0.405   233.78
2023.09    0.406   233.53
2023.19    0.408   233.27
2023.29    0.409   233.02
2023.39    0.411   232.77
2023.49    0.412   232.52
2023.59    0.414   232.28
2023.69    0.415   232.03
2023.79    0.416   231.79
2023.89    0.418   231.54
2023.99    0.419   231.30
2024.09    0.420   231.06
2024.19    0.422   230.83
2024.29    0.423   230.59
2024.39    0.424   230.36
2024.49    0.425   230.12
2024.59    0.426   229.89
2024.69    0.427   229.66
2024.79    0.428   229.43
2024.89    0.430   229.20
2024.99    0.431   228.97
2025.09    0.432   228.75
2025.19    0.433   228.52
2025.29    0.434   228.29
2025.39    0.434   228.07
2025.49    0.435   227.85
2025.59    0.436   227.63
2025.69    0.437   227.41
2025.79    0.438   227.19
2025.89    0.439   226.97
2025.99    0.440   226.75
2026.09    0.441   226.53
2026.19    0.441   226.31
2026.29    0.442   226.10
2026.39    0.443   225.88
2026.49    0.444   225.67
2026.59    0.444   225.46
2026.69    0.445   225.24
2026.79    0.446   225.03
2026.89    0.446   224.82
2026.99    0.447   224.61
2027.09    0.448   224.40
2027.19    0.448   224.19
2027.29    0.449   223.98
2027.39    0.450   223.77
2027.49    0.450   223.56
2027.59    0.451   223.35
2027.69    0.451   223.15
2027.79    0.452   222.94
2027.89    0.452   222.73
2027.99    0.453   222.53
2028.09    0.453   222.32
2028.19    0.454   222.12
2028.29    0.454   221.91
2028.39    0.455   221.71
2028.49    0.455   221.51
2028.59    0.456   221.30
2028.69    0.456   221.10
2028.79    0.456   220.90
2028.89    0.457   220.70
2028.99    0.457   220.49
2029.09    0.458   220.29
2029.19    0.458   220.09
2029.29    0.458   219.89
2029.39    0.459   219.69
2029.49    0.459   219.49
2029.59    0.459   219.29
2029.69    0.460   219.09
2029.79    0.460   218.89
2029.89    0.460   218.69
2029.99    0.460   218.49
2030.09    0.461   218.29
2030.19    0.461   218.10
2030.29    0.461   217.90
2030.39    0.461   217.70
2030.49    0.462   217.50
2030.59    0.462   217.30
2030.69    0.462   217.11
2030.79    0.462   216.91
2030.89    0.462   216.71
2030.99    0.463   216.52
2031.09    0.463   216.32
2031.19    0.463   216.12
2031.29    0.463   215.93
2031.39    0.463   215.73
2031.49    0.463   215.53
2031.59    0.464   215.34
2031.69    0.464   215.14
2031.79    0.464   214.95
2031.89    0.464   214.75
2031.99    0.464   214.55
2032.09    0.464   214.36
2032.19    0.464   214.16
2032.29    0.464   213.97
2032.39    0.464   213.77
2032.49    0.464   213.58
2032.59    0.464   213.38
2032.69    0.465   213.19
2032.79    0.465   212.99
2032.89    0.465   212.80
2032.99    0.465   212.60
2033.09    0.465   212.41
2033.19    0.465   212.21
2033.29    0.465   212.02
2033.39    0.465   211.82
2033.49    0.465   211.63
2033.59    0.465   211.43
2033.69    0.465   211.23
2033.79    0.465   211.04
2033.89    0.465   210.84
2033.99    0.465   210.65
2034.09    0.465   210.45
2034.19    0.464   210.26
2034.29    0.464   210.06
2034.39    0.464   209.87
2034.49    0.464   209.67
2034.59    0.464   209.48
2034.69    0.464   209.28
2034.79    0.464   209.09
2034.89    0.464   208.89
2034.99    0.464   208.70
2035.09    0.464   208.50
2035.19    0.464   208.30
2035.29    0.464   208.11
2035.39    0.464   207.91
2035.49    0.463   207.72
2035.59    0.463   207.52
2035.69    0.463   207.32
2035.79    0.463   207.13
2035.89    0.463   206.93
2035.99    0.463   206.73
2036.09    0.463   206.54
2036.19    0.463   206.34
2036.29    0.462   206.14
2036.39    0.462   205.95
2036.49    0.462   205.75
2036.59    0.462   205.55
2036.69    0.462   205.35
2036.79    0.462   205.16
2036.89    0.461   204.96
2036.99    0.461   204.76
2037.09    0.461   204.56
2037.19    0.461   204.36
2037.29    0.461   204.17
2037.39    0.461   203.97
2037.49    0.460   203.77
2037.59    0.460   203.57
2037.69    0.460   203.37
2037.79    0.460   203.17
2037.89    0.460   202.97
2037.99    0.459   202.77
2038.09    0.459   202.57
2038.19    0.459   202.37
2038.29    0.459   202.17
2038.39    0.459   201.97
2038.49    0.458   201.77
2038.59    0.458   201.57
2038.69    0.458   201.37
2038.79    0.458   201.17
2038.89    0.457   200.97
2038.99    0.457   200.77
2039.09    0.457   200.56
2039.19    0.457   200.36
2039.29    0.456   200.16
2039.39    0.456   199.96
2039.49    0.456   199.76
2039.59    0.456   199.55
2039.69    0.455   199.35
2039.79    0.455   199.15
2039.89    0.455   198.94
2039.99    0.455   198.74
2040.09    0.454   198.54
2040.19    0.454   198.33
2040.29    0.454   198.13
2040.39    0.454   197.92
2040.49    0.453   197.72
2040.59    0.453   197.51
2040.69    0.453   197.31
2040.79    0.452   197.10
2040.89    0.452   196.90
2040.99    0.452   196.69
2041.09    0.452   196.48
2041.19    0.451   196.28
2041.29    0.451   196.07
2041.39    0.451   195.86
2041.49    0.451   195.65
2041.59    0.450   195.45
2041.69    0.450   195.24
2041.79    0.450   195.03
2041.89    0.449   194.82
2041.99    0.449   194.61
2042.09    0.449   194.40
2042.19    0.448   194.20
2042.29    0.448   193.99
2042.39    0.448   193.78
2042.49    0.448   193.57
2042.59    0.447   193.36
2042.69    0.447   193.14
2042.79    0.447   192.93
2042.89    0.446   192.72
2042.99    0.446   192.51
2043.09    0.446   192.30
2043.19    0.445   192.09
2043.29    0.445   191.87
2043.39    0.445   191.66
2043.49    0.444   191.45
2043.59    0.444   191.23
2043.69    0.444   191.02
2043.79    0.444   190.81
2043.89    0.443   190.59
2043.99    0.443   190.38
2044.09    0.443   190.16
2044.19    0.442   189.95
2044.29    0.442   189.73
2044.39    0.442   189.52
2044.49    0.441   189.30
2044.59    0.441   189.08
2044.69    0.441   188.87
2044.79    0.440   188.65
2044.89    0.440   188.43
2044.99    0.440   188.22
2045.09    0.439   188.00
2045.19    0.439   187.78
2045.29    0.439   187.56
2045.39    0.438   187.34
2045.49    0.438   187.12
2045.59    0.438   186.90
2045.69    0.437   186.68
2045.79    0.437   186.46
2045.89    0.437   186.24
2045.99    0.436   186.02
2046.09    0.436   185.80
2046.19    0.436   185.58
2046.29    0.436   185.36
2046.39    0.435   185.13
2046.49    0.435   184.91
2046.59    0.435   184.69
2046.69    0.434   184.46
2046.79    0.434   184.24
2046.89    0.434   184.02
2046.99    0.433   183.79
2047.09    0.433   183.57
2047.19    0.433   183.34
2047.29    0.432   183.12
2047.39    0.432   182.89
2047.49    0.432   182.67
2047.59    0.431   182.44
2047.69    0.431   182.21
2047.79    0.431   181.99
2047.89    0.430   181.76
2047.99    0.430   181.53
2048.09    0.430   181.30
2048.19    0.429   181.08
2048.29    0.429   180.85
2048.39    0.429   180.62
2048.49    0.428   180.39
2048.59    0.428   180.16
2048.69    0.428   179.93
2048.79    0.428   179.70
2048.89    0.427   179.47
2048.99    0.427   179.24
2049.09    0.427   179.01
2049.19    0.426   178.77
2049.29    0.426   178.54
2049.39    0.426   178.31
2049.49    0.425   178.08
2049.59    0.425   177.84
2049.69    0.425   177.61
2049.79    0.424   177.38
2049.89    0.424   177.14
2049.99    0.424   176.91
2050.09    0.423   176.67
2050.19    0.423   176.44
2050.29    0.423   176.20
2050.39    0.423   175.97
2050.49    0.422   175.73
2050.59    0.422   175.49
2050.69    0.422   175.26
2050.79    0.421   175.02
2050.89    0.421   174.78
2050.99    0.421   174.54
2051.09    0.420   174.31
2051.19    0.420   174.07
2051.29    0.420   173.83
2051.39    0.420   173.59
2051.49    0.419   173.35
2051.59    0.419   173.11
2051.69    0.419   172.87
2051.79    0.418   172.63
2051.89    0.418   172.39
2051.99    0.418   172.15
2052.09    0.418   171.91
2052.19    0.417   171.67
2052.29    0.417   171.42
2052.39    0.417   171.18
2052.49    0.416   170.94
2052.59    0.416   170.70
2052.69    0.416   170.45
2052.79    0.416   170.21
2052.89    0.415   169.96
2052.99    0.415   169.72
2053.09    0.415   169.47
2053.19    0.415   169.23
2053.29    0.414   168.98
2053.39    0.414   168.74
2053.49    0.414   168.49
2053.59    0.413   168.25
2053.69    0.413   168.00
2053.79    0.413   167.75
2053.89    0.413   167.51
2053.99    0.412   167.26
2054.09    0.412   167.01
2054.19    0.412   166.76
2054.29    0.412   166.51
2054.39    0.411   166.26
2054.49    0.411   166.02
2054.59    0.411   165.77
2054.69    0.411   165.52
2054.79    0.410   165.27
2054.89    0.410   165.02
2054.99    0.410   164.77
2055.09    0.410   164.52
2055.19    0.409   164.26
2055.29    0.409   164.01
2055.39    0.409   163.76
2055.49    0.409   163.51
2055.59    0.408   163.26
2055.69    0.408   163.00
2055.79    0.408   162.75
2055.89    0.408   162.50
2055.99    0.408   162.24
2056.09    0.407   161.99
2056.19    0.407   161.74
2056.29    0.407   161.48
2056.39    0.407   161.23
2056.49    0.406   160.97
2056.59    0.406   160.72
2056.69    0.406   160.46
2056.79    0.406   160.21
2056.89    0.406   159.95
2056.99    0.405   159.69
2057.09    0.405   159.44
2057.19    0.405   159.18
2057.29    0.405   158.92
2057.39    0.404   158.67
2057.49    0.404   158.41
2057.59    0.404   158.15
2057.69    0.404   157.89
2057.79    0.404   157.63
2057.89    0.403   157.37
2057.99    0.403   157.12
2058.09    0.403   156.86
2058.19    0.403   156.60
2058.29    0.403   156.34
2058.39    0.403   156.08
2058.49    0.402   155.82
2058.59    0.402   155.56
2058.69    0.402   155.30
2058.79    0.402   155.04
2058.89    0.402   154.77
2058.99    0.401   154.51
2059.09    0.401   154.25
2059.19    0.401   153.99
2059.29    0.401   153.73






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 18:04:56



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