Double Star Calculator - Orbit

Orbital Elements for YSC27

WDS:	YSC27	WDS ID/Discoverer
P:	16.510	Orbital period (years)
a:	0.1399	Semi-major axis (arcseconds)
i:	123.5	Inclination (degrees)
Ω:	98.6	Longitude of ascending node (degrees)
T:	2013.020	Epoch of periastron passage (year)
e:	0.222	Eccentricity
ω:	94.7	Longitude of periastron (degrees)
Start-Year:	2016.745	Year
End-Year:	2033.255	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for YSC27
Position:	033752.46+053828.7	Epoch-2000 right ascension and declination
WDS-ID:	03379+0538	WDS designation
Discoverer Code:	YSC27	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	22556	HD catalog number
Hipparcos number:	16390	Hipparcos catalog number
V1:	8.0	Magnitude of the primary
V2:	9.5	Magnitude of the secondary
Equinox:		Equinox
Date:		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:	Tok2020e	Reference

Double Star Orbit for YSC27

WDS 6th Orbit including measures of YSC27

-- 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 YSC27

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.134    96.77
--------------------------
2016.74    0.135   266.45
2016.84    0.135   265.19
2016.94    0.135   263.93
2017.04    0.134   262.66
2017.14    0.134   261.38
2017.24    0.133   260.10
2017.34    0.132   258.79
2017.44    0.132   257.47
2017.54    0.131   256.14
2017.64    0.130   254.78
2017.74    0.129   253.40
2017.84    0.127   252.00
2017.94    0.126   250.57
2018.04    0.125   249.11
2018.14    0.124   247.63
2018.24    0.122   246.11
2018.34    0.121   244.55
2018.44    0.119   242.96
2018.54    0.118   241.33
2018.64    0.117   239.66
2018.74    0.115   237.95
2018.84    0.114   236.19
2018.94    0.112   234.39
2019.04    0.111   232.54
2019.14    0.109   230.64
2019.24    0.108   228.69
2019.34    0.106   226.69
2019.44    0.105   224.64
2019.54    0.104   222.53
2019.64    0.103   220.38
2019.74    0.101   218.17
2019.84    0.100   215.91
2019.94    0.099   213.60
2020.04    0.098   211.25
2020.14    0.097   208.85
2020.24    0.097   206.41
2020.34    0.096   203.94
2020.44    0.095   201.43
2020.54    0.095   198.90
2020.64    0.095   196.34
2020.74    0.094   193.77
2020.84    0.094   191.19
2020.94    0.094   188.60
2021.04    0.094   186.02
2021.14    0.095   183.45
2021.24    0.095   180.89
2021.34    0.095   178.36
2021.44    0.096   175.85
2021.54    0.097   173.37
2021.64    0.097   170.93
2021.74    0.098   168.53
2021.84    0.099   166.18
2021.94    0.100   163.87
2022.04    0.101   161.61
2022.14    0.103   159.40
2022.24    0.104   157.25
2022.34    0.105   155.14
2022.44    0.107   153.09
2022.54    0.108   151.10
2022.64    0.109   149.15
2022.74    0.111   147.26
2022.84    0.112   145.42
2022.94    0.114   143.63
2023.04    0.115   141.88
2023.14    0.117   140.18
2023.24    0.119   138.53
2023.34    0.120   136.91
2023.44    0.122   135.34
2023.54    0.123   133.81
2023.64    0.125   132.31
2023.74    0.126   130.85
2023.84    0.127   129.42
2023.94    0.129   128.02
2024.04    0.130   126.65
2024.14    0.131   125.31
2024.24    0.133   123.99
2024.34    0.134   122.69
2024.44    0.135   121.42
2024.54    0.136   120.16
2024.64    0.137   118.93
2024.74    0.138   117.71
2024.84    0.138   116.50
2024.94    0.139   115.30
2025.04    0.139   114.12
2025.14    0.140   112.94
2025.24    0.140   111.77
2025.34    0.140   110.60
2025.44    0.141   109.44
2025.54    0.141   108.28
2025.64    0.140   107.11
2025.74    0.140   105.95
2025.84    0.140   104.77
2025.94    0.139   103.59
2026.04    0.139   102.40
2026.14    0.138   101.20
2026.24    0.137    99.98
2026.34    0.136    98.74
2026.44    0.134    97.48
2026.54    0.133    96.19
2026.64    0.131    94.88
2026.74    0.130    93.53
2026.84    0.128    92.14
2026.94    0.126    90.71
2027.04    0.123    89.23
2027.14    0.121    87.69
2027.24    0.119    86.10
2027.34    0.116    84.43
2027.44    0.113    82.68
2027.54    0.110    80.84
2027.64    0.107    78.90
2027.74    0.104    76.84
2027.84    0.101    74.65
2027.94    0.097    72.32
2028.04    0.094    69.81
2028.14    0.091    67.12
2028.24    0.087    64.21
2028.34    0.084    61.06
2028.44    0.080    57.64
2028.54    0.077    53.93
2028.64    0.074    49.88
2028.74    0.071    45.49
2028.84    0.068    40.72
2028.94    0.066    35.58
2029.04    0.064    30.07
2029.14    0.062    24.23
2029.24    0.061    18.13
2029.34    0.060    11.85
2029.44    0.060     5.50
2029.54    0.061   359.19
2029.64    0.062   353.04
2029.74    0.063   347.14
2029.84    0.065   341.55
2029.94    0.067   336.32
2030.04    0.070   331.47
2030.14    0.073   326.98
2030.24    0.076   322.86
2030.34    0.079   319.06
2030.44    0.083   315.57
2030.54    0.086   312.35
2030.64    0.090   309.37
2030.74    0.093   306.61
2030.84    0.096   304.05
2030.94    0.100   301.66
2031.04    0.103   299.41
2031.14    0.106   297.30
2031.24    0.109   295.30
2031.34    0.112   293.41
2031.44    0.114   291.61
2031.54    0.117   289.89
2031.64    0.119   288.24
2031.74    0.121   286.65
2031.84    0.123   285.12
2031.94    0.125   283.63
2032.04    0.127   282.19
2032.14    0.129   280.78
2032.24    0.130   279.40
2032.34    0.131   278.05
2032.44    0.132   276.73
2032.54    0.133   275.42
2032.64    0.134   274.13
2032.74    0.134   272.86
2032.84    0.135   271.59
2032.94    0.135   270.33
2033.04    0.135   269.08
2033.14    0.135   267.83
2033.24    0.135   266.57

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 15:13:02