Double Star Calculator - Orbit

Orbital Elements for RAO90BA,BB
WDS: RAO90BA,BB WDS ID/Discoverer
P: 20.000 Orbital period (years)
a: 0.25 Semi-major axis (arcseconds)
i: 89.6 Inclination (degrees)
Ω: 81.58 Longitude of ascending node (degrees)
T: 2025.355 Epoch of periastron passage (year)
e: 0.9366 Eccentricity
ω: 255.39 Longitude of periastron (degrees)
Start-Year: 2015.0 Year
End-Year: 2035.0 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for RAO90BA,BB
Position: 095008.21+040209.3 Epoch-2000 right ascension and declination
WDS-ID: 09505+0421 WDS designation
Discoverer Code: RAO90BA,BB Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 85217 HD catalog number
Hipparcos number: 48273 Hipparcos catalog number
V1: 11.98 Magnitude of the primary
V2: 12.7 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2018 Date of last observation
Orbit grade: 5 Orbit grade, ranging from :
1 = Definitive
2 = Good
3 = Reliable
4 = Preliminary
5 = Indeterminate
Flags: n Flags
Ephemerides: Ephemerides
Code: Tok2022g Reference

Double Star Orbit for RAO90BA,BB



WDS 6th Orbit including measures of RAO90BA,BB

-- 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 RAO90BA,BB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.119    82.01
--------------------------
2015.00    0.127    83.05
2015.10    0.126    83.07
2015.20    0.124    83.09
2015.30    0.123    83.10
2015.40    0.122    83.12
2015.50    0.120    83.14
2015.60    0.119    83.16
2015.70    0.117    83.18
2015.80    0.116    83.20
2015.90    0.114    83.22
2016.00    0.113    83.24
2016.10    0.111    83.26
2016.20    0.110    83.29
2016.30    0.108    83.31
2016.40    0.107    83.33
2016.50    0.105    83.36
2016.60    0.104    83.38
2016.70    0.102    83.41
2016.80    0.101    83.44
2016.90    0.099    83.46
2017.00    0.097    83.49
2017.10    0.096    83.52
2017.20    0.094    83.55
2017.30    0.093    83.58
2017.40    0.091    83.62
2017.50    0.089    83.65
2017.60    0.087    83.69
2017.70    0.086    83.72
2017.80    0.084    83.76
2017.90    0.082    83.80
2018.00    0.081    83.84
2018.10    0.079    83.89
2018.20    0.077    83.93
2018.30    0.075    83.98
2018.40    0.073    84.03
2018.50    0.072    84.08
2018.60    0.070    84.14
2018.70    0.068    84.19
2018.80    0.066    84.26
2018.90    0.064    84.32
2019.00    0.062    84.39
2019.10    0.060    84.46
2019.20    0.059    84.54
2019.30    0.057    84.62
2019.40    0.055    84.71
2019.50    0.053    84.81
2019.60    0.051    84.91
2019.70    0.049    85.02
2019.80    0.047    85.14
2019.90    0.045    85.27
2020.00    0.043    85.41
2020.10    0.041    85.57
2020.20    0.039    85.74
2020.30    0.037    85.93
2020.40    0.035    86.14
2020.50    0.033    86.37
2020.60    0.031    86.64
2020.70    0.029    86.95
2020.80    0.027    87.30
2020.90    0.025    87.71
2021.00    0.023    88.19
2021.10    0.021    88.76
2021.20    0.019    89.46
2021.30    0.017    90.34
2021.40    0.015    91.45
2021.50    0.013    92.93
2021.60    0.011    94.99
2021.70    0.009    98.02
2021.80    0.007   102.91
2021.90    0.005   111.92
2022.00    0.003   131.88
2022.10    0.002   175.91
2022.20    0.003   216.91
2022.30    0.005   234.78
2022.40    0.007   243.05
2022.50    0.009   247.62
2022.60    0.011   250.50
2022.70    0.013   252.47
2022.80    0.015   253.89
2022.90    0.017   254.98
2023.00    0.019   255.83
2023.10    0.021   256.52
2023.20    0.023   257.09
2023.30    0.025   257.56
2023.40    0.027   257.97
2023.50    0.029   258.32
2023.60    0.031   258.63
2023.70    0.033   258.90
2023.80    0.035   259.14
2023.90    0.036   259.36
2024.00    0.038   259.56
2024.10    0.040   259.74
2024.20    0.041   259.91
2024.30    0.043   260.07
2024.40    0.044   260.22
2024.50    0.045   260.35
2024.60    0.046   260.49
2024.70    0.046   260.62
2024.80    0.047   260.74
2024.90    0.046   260.87
2025.00    0.045   261.00
2025.10    0.042   261.15
2025.20    0.036   261.33
2025.30    0.022   261.64
2025.40    0.014    81.17
2025.50    0.041    81.59
2025.60    0.058    81.70
2025.70    0.070    81.77
2025.80    0.079    81.82
2025.90    0.087    81.86
2026.00    0.094    81.89
2026.10    0.101    81.92
2026.20    0.106    81.95
2026.30    0.111    81.97
2026.40    0.115    81.99
2026.50    0.119    82.01
2026.60    0.123    82.03
2026.70    0.127    82.05
2026.80    0.130    82.06
2026.90    0.133    82.08
2027.00    0.135    82.10
2027.10    0.138    82.11
2027.20    0.140    82.12
2027.30    0.142    82.14
2027.40    0.144    82.15
2027.50    0.146    82.17
2027.60    0.148    82.18
2027.70    0.150    82.19
2027.80    0.151    82.20
2027.90    0.153    82.21
2028.00    0.154    82.23
2028.10    0.155    82.24
2028.20    0.156    82.25
2028.30    0.157    82.26
2028.40    0.158    82.27
2028.50    0.159    82.28
2028.60    0.160    82.29
2028.70    0.161    82.30
2028.80    0.161    82.31
2028.90    0.162    82.33
2029.00    0.162    82.34
2029.10    0.163    82.35
2029.20    0.163    82.36
2029.30    0.164    82.37
2029.40    0.164    82.38
2029.50    0.164    82.39
2029.60    0.164    82.40
2029.70    0.165    82.41
2029.80    0.165    82.42
2029.90    0.165    82.43
2030.00    0.165    82.44
2030.10    0.165    82.45
2030.20    0.165    82.46
2030.30    0.165    82.47
2030.40    0.164    82.48
2030.50    0.164    82.49
2030.60    0.164    82.50
2030.70    0.164    82.51
2030.80    0.163    82.52
2030.90    0.163    82.53
2031.00    0.163    82.54
2031.10    0.162    82.55
2031.20    0.162    82.56
2031.30    0.161    82.57
2031.40    0.161    82.58
2031.50    0.160    82.59
2031.60    0.160    82.60
2031.70    0.159    82.61
2031.80    0.159    82.63
2031.90    0.158    82.64
2032.00    0.157    82.65
2032.10    0.157    82.66
2032.20    0.156    82.67
2032.30    0.155    82.68
2032.40    0.155    82.69
2032.50    0.154    82.70
2032.60    0.153    82.72
2032.70    0.152    82.73
2032.80    0.151    82.74
2032.90    0.150    82.75
2033.00    0.149    82.76
2033.10    0.149    82.78
2033.20    0.148    82.79
2033.30    0.147    82.80
2033.40    0.146    82.81
2033.50    0.145    82.83
2033.60    0.144    82.84
2033.70    0.142    82.85
2033.80    0.141    82.87
2033.90    0.140    82.88
2034.00    0.139    82.90
2034.10    0.138    82.91
2034.20    0.137    82.92
2034.30    0.136    82.94
2034.40    0.135    82.95
2034.50    0.133    82.97
2034.60    0.132    82.99
2034.70    0.131    83.00
2034.80    0.130    83.02
2034.90    0.128    83.03






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 16:21:28



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