Double Star Calculator - Orbit

Orbital Elements for YSC43AA,AB
WDS: YSC43AA,AB WDS ID/Discoverer
P: 10.970 Orbital period (years)
a: 0.0666 Semi-major axis (arcseconds)
i: 101.3 Inclination (degrees)
Ω: 351.8 Longitude of ascending node (degrees)
T: 2005.440 Epoch of periastron passage (year)
e: 0.522 Eccentricity
ω: 77.2 Longitude of periastron (degrees)
Start-Year: 2019.515 Year
End-Year: 2030.485 Year
Epoch: 2026.5 Besselian Epoch
 
Further data from the WDS Sixth Catalog of Orbits for YSC43AA,AB
Position: 113409.95+110125.9 Epoch-2000 right ascension and declination
WDS-ID: 11342+1101 WDS designation
Discoverer Code: YSC43AA,AB Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 100518 HD catalog number
Hipparcos number: 56429 Hipparcos catalog number
V1: 6.9 Magnitude of the primary
V2: 8.2 Magnitude of the secondary
Equinox: Equinox
Date: 2019 Date of last observation
Orbit grade: 4 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 YSC43AA,AB



WDS 6th Orbit including measures of YSC43AA,AB

-- 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 YSC43AA,AB
Click to expand/collapse ephemeris: 
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.045   352.92
--------------------------
2019.52    0.062   160.57
2019.62    0.062   159.94
2019.71    0.061   159.29
2019.81    0.060   158.61
2019.91    0.059   157.92
2020.01    0.057   157.19
2020.11    0.056   156.44
2020.21    0.055   155.66
2020.31    0.054   154.84
2020.41    0.052   153.97
2020.51    0.051   153.06
2020.61    0.050   152.10
2020.71    0.048   151.09
2020.81    0.047   150.00
2020.91    0.045   148.85
2021.01    0.044   147.61
2021.11    0.042   146.28
2021.21    0.040   144.85
2021.31    0.039   143.30
2021.41    0.037   141.62
2021.51    0.036   139.79
2021.61    0.034   137.78
2021.71    0.032   135.58
2021.81    0.031   133.15
2021.91    0.029   130.46
2022.01    0.028   127.49
2022.11    0.026   124.19
2022.21    0.025   120.52
2022.31    0.024   116.44
2022.41    0.023   111.93
2022.51    0.022   106.97
2022.61    0.021   101.56
2022.71    0.020    95.73
2022.81    0.020    89.55
2022.91    0.019    83.14
2023.01    0.019    76.62
2023.11    0.020    70.17
2023.21    0.020    63.91
2023.31    0.021    57.96
2023.41    0.021    52.42
2023.51    0.022    47.32
2023.61    0.023    42.67
2023.71    0.025    38.46
2023.81    0.026    34.66
2023.91    0.027    31.23
2024.01    0.029    28.14
2024.11    0.030    25.35
2024.21    0.032    22.81
2024.31    0.033    20.51
2024.41    0.035    18.40
2024.51    0.036    16.47
2024.61    0.038    14.69
2024.71    0.039    13.05
2024.81    0.041    11.52
2024.91    0.042    10.08
2025.01    0.043     8.74
2025.11    0.044     7.47
2025.21    0.046     6.27
2025.31    0.047     5.12
2025.41    0.048     4.02
2025.51    0.048     2.96
2025.61    0.049     1.94
2025.71    0.049     0.93
2025.81    0.050   359.95
2025.91    0.050   358.97
2026.01    0.050   358.00
2026.11    0.050   357.01
2026.21    0.049   356.01
2026.31    0.048   354.98
2026.41    0.047   353.89
2026.51    0.045   352.74
2026.61    0.043   351.48
2026.71    0.040   350.07
2026.81    0.037   348.44
2026.91    0.033   346.46
2027.01    0.029   343.93
2027.11    0.024   340.39
2027.21    0.018   334.85
2027.31    0.013   324.45
2027.41    0.008   299.18
2027.51    0.007   244.07
2027.61    0.011   207.59
2027.71    0.016   193.61
2027.81    0.022   186.84
2027.91    0.027   182.82
2028.01    0.032   180.09
2028.11    0.037   178.07
2028.21    0.041   176.48
2028.31    0.045   175.17
2028.41    0.048   174.04
2028.51    0.051   173.06
2028.61    0.054   172.17
2028.71    0.056   171.36
2028.81    0.058   170.62
2028.91    0.060   169.91
2029.01    0.061   169.25
2029.11    0.062   168.61
2029.21    0.063   167.99
2029.31    0.064   167.39
2029.41    0.065   166.80
2029.51    0.065   166.22
2029.61    0.065   165.65
2029.71    0.065   165.08
2029.81    0.065   164.52
2029.91    0.065   163.95
2030.01    0.065   163.38
2030.11    0.065   162.80
2030.21    0.064   162.21
2030.31    0.064   161.61
2030.41    0.063   161.01



 

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 16:39:34


www.stella-vega.de