Double Star Calculator - Orbit

Orbital Elements for JNN55BC
WDS: JNN55BC WDS ID/Discoverer
P: 13.970 Orbital period (years)
a: 0.178 Semi-major axis (arcseconds)
i: 67.9 Inclination (degrees)
Ω: 94.5 Longitude of ascending node (degrees)
T: 2013.530 Epoch of periastron passage (year)
e: 0.78 Eccentricity
ω: 106.7 Longitude of periastron (degrees)
Start-Year: 2018.015 Year
End-Year: 2031.985 Year
Epoch: 2026.5 Besselian Epoch
 
Further data from the WDS Sixth Catalog of Orbits for JNN55BC
Position: 072108.90+673959.3 Epoch-2000 right ascension and declination
WDS-ID: 07211+6740 WDS designation
Discoverer Code: JNN55BC Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: . HD catalog number
Hipparcos number: . Hipparcos catalog number
V1: 13.5 Magnitude of the primary
V2: 15.8 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2018 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: Tok2019e Reference

Double Star Orbit for JNN55BC



WDS 6th Orbit including measures of JNN55BC

-- 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 JNN55BC
Click to expand/collapse ephemeris: 
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.119    87.85
--------------------------
2018.02    0.109    12.84
2018.12    0.111    14.42
2018.21    0.112    15.97
2018.31    0.113    17.48
2018.41    0.115    18.96
2018.51    0.116    20.40
2018.61    0.118    21.80
2018.71    0.119    23.18
2018.81    0.121    24.52
2018.91    0.122    25.82
2019.01    0.124    27.10
2019.11    0.125    28.34
2019.21    0.127    29.56
2019.31    0.128    30.75
2019.41    0.130    31.90
2019.51    0.131    33.04
2019.61    0.133    34.14
2019.71    0.134    35.22
2019.81    0.136    36.28
2019.91    0.137    37.31
2020.01    0.139    38.32
2020.11    0.140    39.31
2020.21    0.142    40.28
2020.31    0.143    41.23
2020.41    0.145    42.16
2020.51    0.146    43.07
2020.61    0.147    43.96
2020.71    0.149    44.84
2020.81    0.150    45.70
2020.91    0.152    46.54
2021.01    0.153    47.37
2021.11    0.154    48.18
2021.21    0.156    48.98
2021.31    0.157    49.77
2021.41    0.158    50.54
2021.51    0.159    51.31
2021.61    0.161    52.06
2021.71    0.162    52.80
2021.81    0.163    53.53
2021.91    0.164    54.25
2022.01    0.165    54.96
2022.11    0.166    55.66
2022.21    0.167    56.35
2022.31    0.168    57.04
2022.41    0.169    57.72
2022.51    0.170    58.39
2022.61    0.170    59.06
2022.71    0.171    59.72
2022.81    0.172    60.37
2022.91    0.172    61.02
2023.01    0.173    61.67
2023.11    0.173    62.31
2023.21    0.174    62.95
2023.31    0.174    63.58
2023.41    0.174    64.21
2023.51    0.175    64.84
2023.61    0.175    65.47
2023.71    0.175    66.10
2023.81    0.175    66.73
2023.91    0.175    67.36
2024.01    0.175    67.99
2024.11    0.174    68.62
2024.21    0.174    69.25
2024.31    0.174    69.89
2024.41    0.173    70.53
2024.51    0.172    71.17
2024.61    0.171    71.82
2024.71    0.171    72.48
2024.81    0.169    73.15
2024.91    0.168    73.82
2025.01    0.167    74.51
2025.11    0.165    75.20
2025.21    0.164    75.91
2025.31    0.162    76.64
2025.41    0.160    77.38
2025.51    0.157    78.15
2025.61    0.155    78.93
2025.71    0.152    79.75
2025.81    0.149    80.59
2025.91    0.146    81.48
2026.01    0.142    82.40
2026.11    0.138    83.38
2026.21    0.134    84.42
2026.31    0.129    85.53
2026.41    0.124    86.73
2026.51    0.118    88.05
2026.61    0.111    89.52
2026.71    0.104    91.18
2026.81    0.096    93.12
2026.91    0.086    95.45
2027.01    0.075    98.40
2027.11    0.063   102.44
2027.21    0.048   108.72
2027.31    0.032   121.01
2027.41    0.017   157.89
2027.51    0.020   231.10
2027.61    0.035   258.56
2027.71    0.049   269.47
2027.81    0.059   276.01
2027.91    0.067   280.81
2028.01    0.073   284.74
2028.11    0.077   288.17
2028.21    0.080   291.28
2028.31    0.083   294.16
2028.41    0.085   296.90
2028.51    0.086   299.52
2028.61    0.088   302.06
2028.71    0.089   304.54
2028.81    0.089   306.97
2028.91    0.090   309.36
2029.01    0.090   311.73
2029.11    0.091   314.08
2029.21    0.091   316.40
2029.31    0.091   318.71
2029.41    0.092   321.01
2029.51    0.092   323.30
2029.61    0.092   325.57
2029.71    0.092   327.83
2029.81    0.093   330.08
2029.91    0.093   332.32
2030.01    0.093   334.54
2030.11    0.094   336.74
2030.21    0.094   338.93
2030.31    0.094   341.09
2030.41    0.095   343.24
2030.51    0.096   345.36
2030.61    0.096   347.45
2030.71    0.097   349.52
2030.81    0.097   351.56
2030.91    0.098   353.56
2031.01    0.099   355.54
2031.11    0.100   357.48
2031.21    0.101   359.39
2031.31    0.102     1.26
2031.41    0.103     3.09
2031.51    0.104     4.89
2031.61    0.105     6.65
2031.71    0.106     8.37
2031.81    0.107    10.06
2031.91    0.109    11.71



 

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 15:56:47


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