Double Star Calculator - Orbit

Orbital Elements for LPR2
WDS: LPR2 WDS ID/Discoverer
P: 16.510 Orbital period (years)
a: 0.1359 Semi-major axis (arcseconds)
i: 157.0 Inclination (degrees)
Ω: 208.0 Longitude of ascending node (degrees)
T: 2025.094 Epoch of periastron passage (year)
e: 0.825 Eccentricity
ω: 45.0 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 LPR2
Position: 140449.48-315933.0 Epoch-2000 right ascension and declination
WDS-ID: 14048-3200 WDS designation
Discoverer Code: LPR2 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: . HD catalog number
Hipparcos number: . Hipparcos catalog number
V1: 14.9 Magnitude of the primary
V2: 16.1 Magnitude of the secondary
Equinox: Equinox
Date: 2015 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: Dup2017 Reference

Double Star Orbit for LPR2



WDS 6th Orbit including measures of LPR2

-- 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 LPR2
Click to expand/collapse ephemeris: 
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.110    25.97
--------------------------
2016.74    0.238   345.72
2016.84    0.238   345.35
2016.94    0.238   344.98
2017.04    0.238   344.61
2017.14    0.238   344.24
2017.24    0.237   343.87
2017.34    0.237   343.50
2017.44    0.237   343.12
2017.54    0.236   342.75
2017.64    0.236   342.37
2017.74    0.235   342.00
2017.84    0.235   341.62
2017.94    0.234   341.24
2018.04    0.233   340.85
2018.14    0.233   340.47
2018.24    0.232   340.08
2018.34    0.231   339.69
2018.44    0.230   339.29
2018.54    0.229   338.90
2018.64    0.228   338.50
2018.74    0.227   338.09
2018.84    0.226   337.69
2018.94    0.225   337.28
2019.04    0.224   336.86
2019.14    0.223   336.44
2019.24    0.222   336.02
2019.34    0.220   335.59
2019.44    0.219   335.15
2019.54    0.218   334.71
2019.64    0.216   334.27
2019.74    0.215   333.82
2019.84    0.213   333.36
2019.94    0.211   332.89
2020.04    0.210   332.42
2020.14    0.208   331.94
2020.24    0.206   331.45
2020.34    0.204   330.95
2020.44    0.202   330.45
2020.54    0.200   329.93
2020.64    0.198   329.40
2020.74    0.196   328.87
2020.84    0.194   328.32
2020.94    0.192   327.75
2021.04    0.190   327.18
2021.14    0.187   326.59
2021.24    0.185   325.99
2021.34    0.183   325.37
2021.44    0.180   324.73
2021.54    0.177   324.07
2021.64    0.175   323.40
2021.74    0.172   322.70
2021.84    0.169   321.98
2021.94    0.166   321.24
2022.04    0.163   320.47
2022.14    0.160   319.67
2022.24    0.157   318.84
2022.34    0.154   317.97
2022.44    0.151   317.07
2022.54    0.147   316.13
2022.64    0.144   315.14
2022.74    0.140   314.10
2022.84    0.137   313.01
2022.94    0.133   311.86
2023.04    0.129   310.64
2023.14    0.125   309.34
2023.24    0.121   307.95
2023.34    0.117   306.47
2023.44    0.112   304.88
2023.54    0.108   303.15
2023.64    0.103   301.27
2023.74    0.099   299.21
2023.84    0.094   296.94
2023.94    0.089   294.42
2024.04    0.083   291.58
2024.14    0.078   288.36
2024.24    0.072   284.65
2024.34    0.067   280.29
2024.44    0.061   275.10
2024.54    0.054   268.73
2024.64    0.048   260.70
2024.74    0.041   250.17
2024.84    0.035   235.71
2024.94    0.029   214.87
2025.04    0.024   184.26
2025.14    0.023   144.81
2025.24    0.027   109.45
2025.34    0.034    85.92
2025.44    0.042    70.90
2025.54    0.049    60.71
2025.64    0.057    53.30
2025.74    0.064    47.62
2025.84    0.071    43.07
2025.94    0.078    39.32
2026.04    0.084    36.14
2026.14    0.090    33.40
2026.24    0.096    31.00
2026.34    0.102    28.86
2026.44    0.107    26.94
2026.54    0.112    25.20
2026.64    0.117    23.61
2026.74    0.122    22.14
2026.84    0.127    20.79
2026.94    0.131    19.52
2027.04    0.135    18.34
2027.14    0.139    17.23
2027.24    0.143    16.18
2027.34    0.147    15.18
2027.44    0.151    14.24
2027.54    0.154    13.34
2027.64    0.158    12.48
2027.74    0.161    11.66
2027.84    0.165    10.87
2027.94    0.168    10.11
2028.04    0.171     9.38
2028.14    0.174     8.68
2028.24    0.177     8.00
2028.34    0.180     7.34
2028.44    0.182     6.70
2028.54    0.185     6.07
2028.64    0.188     5.47
2028.74    0.190     4.88
2028.84    0.192     4.31
2028.94    0.195     3.75
2029.04    0.197     3.20
2029.14    0.199     2.67
2029.24    0.201     2.15
2029.34    0.203     1.64
2029.44    0.205     1.13
2029.54    0.207     0.64
2029.64    0.209     0.16
2029.74    0.211   359.68
2029.84    0.213   359.21
2029.94    0.214   358.75
2030.04    0.216   358.30
2030.14    0.217   357.85
2030.24    0.219   357.41
2030.34    0.220   356.98
2030.44    0.222   356.55
2030.54    0.223   356.12
2030.64    0.224   355.71
2030.74    0.225   355.29
2030.84    0.226   354.88
2030.94    0.228   354.47
2031.04    0.229   354.07
2031.14    0.230   353.67
2031.24    0.230   353.27
2031.34    0.231   352.88
2031.44    0.232   352.49
2031.54    0.233   352.10
2031.64    0.234   351.72
2031.74    0.234   351.34
2031.84    0.235   350.96
2031.94    0.235   350.58
2032.04    0.236   350.20
2032.14    0.236   349.82
2032.24    0.237   349.45
2032.34    0.237   349.08
2032.44    0.238   348.71
2032.54    0.238   348.34
2032.64    0.238   347.97
2032.74    0.238   347.60
2032.84    0.238   347.23
2032.94    0.238   346.86
2033.04    0.239   346.49
2033.14    0.239   346.12
2033.24    0.238   345.75



 

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 17:02:24


www.stella-vega.de