Double Star Calculator - Orbit

Orbital Elements for PES1

WDS:	PES1	WDS ID/Discoverer
P:	31.305	Orbital period (years)
a:	0.528	Semi-major axis (arcseconds)
i:	48.46	Inclination (degrees)
Ω:	93.501	Longitude of ascending node (degrees)
T:	2029.210	Epoch of periastron passage (year)
e:	0.753	Eccentricity
ω:	263.98	Longitude of periastron (degrees)
Start-Year:	2009.3475	Year
End-Year:	2040.6525	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for PES1
Position:	004926.76-231244.9	Epoch-2000 right ascension and declination
WDS-ID:	00494-2313	WDS designation
Discoverer Code:	PES1	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	4747	HD catalog number
Hipparcos number:	3850	Hipparcos catalog number
V1:	5.3	Magnitude of the primary
V2:	14.5	Magnitude of the secondary
Equinox:		Equinox
Date:		Date of last observation
Orbit grade:	4	Orbit grade, ranging from : 1 = Definitive 2 = Good 3 = Reliable 4 = Preliminary 5 = Indeterminate
Flags:	n	Flags
Ephemerides:		Ephemerides
Code:	JAA2023	Reference

Double Star Orbit for PES1

WDS 6th Orbit including measures of PES1

-- 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 PES1

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.353   243.02
--------------------------
2009.35    0.613   159.09
2009.45    0.613   159.46
2009.55    0.614   159.83
2009.65    0.615   160.20
2009.75    0.615   160.57
2009.85    0.616   160.94
2009.95    0.616   161.31
2010.05    0.617   161.68
2010.15    0.617   162.05
2010.25    0.618   162.41
2010.35    0.618   162.78
2010.45    0.618   163.15
2010.55    0.619   163.51
2010.65    0.619   163.88
2010.75    0.619   164.24
2010.85    0.619   164.61
2010.95    0.620   164.97
2011.05    0.620   165.34
2011.15    0.620   165.70
2011.25    0.620   166.06
2011.35    0.620   166.43
2011.45    0.621   166.79
2011.55    0.621   167.15
2011.65    0.621   167.52
2011.75    0.621   167.88
2011.85    0.621   168.24
2011.95    0.621   168.61
2012.05    0.621   168.97
2012.15    0.621   169.33
2012.25    0.621   169.69
2012.35    0.621   170.06
2012.45    0.621   170.42
2012.55    0.621   170.78
2012.65    0.620   171.15
2012.75    0.620   171.51
2012.85    0.620   171.87
2012.95    0.620   172.24
2013.05    0.620   172.60
2013.15    0.619   172.97
2013.25    0.619   173.33
2013.35    0.619   173.70
2013.45    0.618   174.06
2013.55    0.618   174.43
2013.65    0.618   174.79
2013.75    0.617   175.16
2013.85    0.617   175.53
2013.95    0.617   175.90
2014.05    0.616   176.26
2014.15    0.616   176.63
2014.25    0.615   177.00
2014.35    0.615   177.37
2014.45    0.614   177.74
2014.55    0.614   178.11
2014.65    0.613   178.49
2014.75    0.612   178.86
2014.85    0.612   179.23
2014.95    0.611   179.61
2015.05    0.611   179.98
2015.15    0.610   180.36
2015.25    0.609   180.73
2015.35    0.609   181.11
2015.45    0.608   181.49
2015.55    0.607   181.87
2015.65    0.606   182.25
2015.75    0.606   182.63
2015.85    0.605   183.01
2015.95    0.604   183.39
2016.05    0.603   183.78
2016.15    0.602   184.16
2016.25    0.601   184.55
2016.35    0.600   184.94
2016.45    0.599   185.33
2016.55    0.598   185.72
2016.65    0.598   186.11
2016.75    0.597   186.50
2016.85    0.596   186.89
2016.95    0.594   187.29
2017.05    0.593   187.69
2017.15    0.592   188.08
2017.25    0.591   188.48
2017.35    0.590   188.88
2017.45    0.589   189.29
2017.55    0.588   189.69
2017.65    0.587   190.10
2017.75    0.585   190.50
2017.85    0.584   190.91
2017.95    0.583   191.32
2018.05    0.582   191.74
2018.15    0.580   192.15
2018.25    0.579   192.57
2018.35    0.578   192.98
2018.45    0.576   193.40
2018.55    0.575   193.83
2018.65    0.574   194.25
2018.75    0.572   194.68
2018.85    0.571   195.10
2018.95    0.569   195.54
2019.05    0.568   195.97
2019.15    0.566   196.40
2019.25    0.565   196.84
2019.35    0.563   197.28
2019.45    0.562   197.72
2019.55    0.560   198.17
2019.65    0.558   198.61
2019.75    0.557   199.06
2019.85    0.555   199.52
2019.95    0.553   199.97
2020.05    0.552   200.43
2020.15    0.550   200.89
2020.25    0.548   201.36
2020.35    0.546   201.82
2020.45    0.544   202.29
2020.55    0.543   202.77
2020.65    0.541   203.24
2020.75    0.539   203.72
2020.85    0.537   204.21
2020.95    0.535   204.69
2021.05    0.533   205.18
2021.15    0.531   205.68
2021.25    0.529   206.18
2021.35    0.527   206.68
2021.45    0.525   207.19
2021.55    0.522   207.70
2021.65    0.520   208.21
2021.75    0.518   208.73
2021.85    0.516   209.25
2021.95    0.514   209.78
2022.05    0.511   210.31
2022.15    0.509   210.85
2022.25    0.506   211.39
2022.35    0.504   211.94
2022.45    0.502   212.50
2022.55    0.499   213.06
2022.65    0.497   213.62
2022.75    0.494   214.19
2022.85    0.491   214.77
2022.95    0.489   215.35
2023.05    0.486   215.94
2023.15    0.483   216.53
2023.25    0.480   217.14
2023.35    0.478   217.75
2023.45    0.475   218.36
2023.55    0.472   218.99
2023.65    0.469   219.62
2023.75    0.466   220.26
2023.85    0.463   220.91
2023.95    0.460   221.57
2024.05    0.456   222.23
2024.15    0.453   222.91
2024.25    0.450   223.60
2024.35    0.446   224.29
2024.45    0.443   225.00
2024.55    0.440   225.72
2024.65    0.436   226.45
2024.75    0.432   227.19
2024.85    0.429   227.94
2024.95    0.425   228.71
2025.05    0.421   229.50
2025.15    0.417   230.29
2025.25    0.413   231.10
2025.35    0.409   231.93
2025.45    0.405   232.78
2025.55    0.400   233.64
2025.65    0.396   234.52
2025.75    0.391   235.43
2025.85    0.387   236.35
2025.95    0.382   237.30
2026.05    0.377   238.27
2026.15    0.372   239.27
2026.25    0.367   240.29
2026.35    0.361   241.35
2026.45    0.356   242.44
2026.55    0.350   243.56
2026.65    0.345   244.72
2026.75    0.338   245.92
2026.85    0.332   247.16
2026.95    0.326   248.45
2027.05    0.319   249.80
2027.15    0.312   251.20
2027.25    0.305   252.67
2027.35    0.297   254.21
2027.45    0.290   255.84
2027.55    0.281   257.56
2027.65    0.273   259.38
2027.75    0.264   261.32
2027.85    0.254   263.41
2027.95    0.244   265.66
2028.05    0.234   268.11
2028.15    0.223   270.80
2028.25    0.211   273.78
2028.35    0.198   277.12
2028.45    0.185   280.93
2028.55    0.171   285.34
2028.65    0.157   290.55
2028.75    0.141   296.87
2028.85    0.126   304.70
2028.95    0.112   314.65
2029.05    0.099   327.37
2029.15    0.090   343.24
2029.25    0.087     1.43
2029.35    0.090    19.58
2029.45    0.099    35.36
2029.55    0.112    47.96
2029.65    0.127    57.75
2029.75    0.143    65.41
2029.85    0.159    71.53
2029.95    0.175    76.54
2030.05    0.190    80.75
2030.15    0.205    84.34
2030.25    0.218    87.48
2030.35    0.232    90.24
2030.45    0.244    92.72
2030.55    0.256    94.95
2030.65    0.267    97.00
2030.75    0.278    98.87
2030.85    0.289   100.61
2030.95    0.299   102.23
2031.05    0.308   103.75
2031.15    0.318   105.18
2031.25    0.326   106.53
2031.35    0.335   107.81
2031.45    0.343   109.02
2031.55    0.351   110.19
2031.65    0.359   111.30
2031.75    0.366   112.36
2031.85    0.373   113.39
2031.95    0.380   114.37
2032.05    0.387   115.33
2032.15    0.393   116.25
2032.25    0.399   117.14
2032.35    0.405   118.00
2032.45    0.411   118.84
2032.55    0.417   119.66
2032.65    0.423   120.45
2032.75    0.428   121.22
2032.85    0.433   121.98
2032.95    0.438   122.72
2033.05    0.443   123.44
2033.15    0.448   124.14
2033.25    0.453   124.83
2033.35    0.457   125.51
2033.45    0.462   126.17
2033.55    0.466   126.82
2033.65    0.470   127.45
2033.75    0.475   128.08
2033.85    0.479   128.70
2033.95    0.483   129.30
2034.05    0.486   129.90
2034.15    0.490   130.48
2034.25    0.494   131.06
2034.35    0.498   131.63
2034.45    0.501   132.19
2034.55    0.504   132.75
2034.65    0.508   133.29
2034.75    0.511   133.83
2034.85    0.514   134.36
2034.95    0.517   134.89
2035.05    0.520   135.41
2035.15    0.523   135.92
2035.25    0.526   136.43
2035.35    0.529   136.93
2035.45    0.532   137.43
2035.55    0.535   137.92
2035.65    0.537   138.41
2035.75    0.540   138.89
2035.85    0.542   139.37
2035.95    0.545   139.84
2036.05    0.547   140.31
2036.15    0.550   140.78
2036.25    0.552   141.24
2036.35    0.554   141.69
2036.45    0.556   142.15
2036.55    0.559   142.60
2036.65    0.561   143.04
2036.75    0.563   143.49
2036.85    0.565   143.93
2036.95    0.567   144.37
2037.05    0.569   144.80
2037.15    0.571   145.23
2037.25    0.572   145.66
2037.35    0.574   146.08
2037.45    0.576   146.51
2037.55    0.578   146.93
2037.65    0.579   147.35
2037.75    0.581   147.76
2037.85    0.583   148.17
2037.95    0.584   148.59
2038.05    0.586   148.99
2038.15    0.587   149.40
2038.25    0.589   149.81
2038.35    0.590   150.21
2038.45    0.591   150.61
2038.55    0.593   151.01
2038.65    0.594   151.41
2038.75    0.595   151.80
2038.85    0.596   152.20
2038.95    0.598   152.59
2039.05    0.599   152.98
2039.15    0.600   153.37
2039.25    0.601   153.76
2039.35    0.602   154.15
2039.45    0.603   154.53
2039.55    0.604   154.92
2039.65    0.605   155.30
2039.75    0.606   155.68
2039.85    0.607   156.06
2039.95    0.608   156.44
2040.05    0.608   156.82
2040.15    0.609   157.20
2040.25    0.610   157.57
2040.35    0.611   157.95
2040.45    0.611   158.32
2040.55    0.612   158.70
2040.65    0.613   159.07

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 14:43:37