Double Star Calculator - Orbit

Orbital Elements for CAR2

WDS:	CAR2	WDS ID/Discoverer
P:	14.730	Orbital period (years)
a:	0.2812	Semi-major axis (arcseconds)
i:	129.0	Inclination (degrees)
Ω:	78.9	Longitude of ascending node (degrees)
T:	2004.430	Epoch of periastron passage (year)
e:	0.6	Eccentricity
ω:	245.6	Longitude of periastron (degrees)
Start-Year:	2017.635	Year
End-Year:	2032.365	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for CAR2
Position:	204421.94+194457.9	Epoch-2000 right ascension and declination
WDS-ID:	20444+1945	WDS designation
Discoverer Code:	CAR2	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	352860	HD catalog number
Hipparcos number:	102357	Hipparcos catalog number
V1:	10.29	Magnitude of the primary
V2:	11.6	Magnitude of the secondary
Equinox:		Equinox
Date:	2020	Date of last observation
Orbit grade:	2	Orbit grade, ranging from : 1 = Definitive 2 = Good 3 = Reliable 4 = Preliminary 5 = Indeterminate
Flags:		Flags
Ephemerides:		Ephemerides
Code:	Mit2021	Reference

Double Star Orbit for CAR2

WDS 6th Orbit including measures of CAR2

-- 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 CAR2

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.318    24.92
--------------------------
2017.63    0.189   289.13
2017.73    0.185   286.35
2017.83    0.182   283.47
2017.93    0.178   280.47
2018.03    0.174   277.34
2018.13    0.169   274.04
2018.23    0.164   270.53
2018.33    0.158   266.77
2018.43    0.151   262.68
2018.53    0.143   258.18
2018.63    0.134   253.11
2018.73    0.124   247.28
2018.83    0.114   240.39
2018.93    0.102   232.02
2019.03    0.091   221.58
2019.13    0.081   208.44
2019.23    0.075   192.34
2019.33    0.073   174.25
2019.43    0.076   156.50
2019.53    0.084   141.23
2019.63    0.095   129.07
2019.73    0.108   119.63
2019.83    0.122   112.24
2019.93    0.135   106.33
2020.03    0.149   101.49
2020.13    0.161    97.44
2020.23    0.174    93.97
2020.33    0.185    90.94
2020.43    0.196    88.27
2020.53    0.207    85.87
2020.63    0.217    83.70
2020.73    0.226    81.71
2020.83    0.235    79.88
2020.93    0.243    78.17
2021.03    0.251    76.57
2021.13    0.258    75.06
2021.23    0.265    73.64
2021.33    0.271    72.28
2021.43    0.277    70.99
2021.53    0.283    69.75
2021.63    0.288    68.55
2021.73    0.293    67.40
2021.83    0.298    66.29
2021.93    0.302    65.21
2022.03    0.306    64.16
2022.13    0.310    63.13
2022.23    0.314    62.13
2022.33    0.317    61.15
2022.43    0.320    60.19
2022.53    0.323    59.25
2022.63    0.325    58.33
2022.73    0.328    57.42
2022.83    0.330    56.52
2022.93    0.332    55.63
2023.03    0.334    54.75
2023.13    0.336    53.88
2023.23    0.337    53.02
2023.33    0.338    52.17
2023.43    0.339    51.32
2023.53    0.340    50.48
2023.63    0.341    49.64
2023.73    0.342    48.81
2023.83    0.342    47.98
2023.93    0.343    47.15
2024.03    0.343    46.32
2024.13    0.343    45.50
2024.23    0.343    44.67
2024.33    0.343    43.84
2024.43    0.343    43.02
2024.53    0.343    42.19
2024.63    0.342    41.36
2024.73    0.342    40.53
2024.83    0.341    39.69
2024.93    0.340    38.86
2025.03    0.339    38.01
2025.13    0.339    37.17
2025.23    0.338    36.32
2025.33    0.336    35.46
2025.43    0.335    34.60
2025.53    0.334    33.73
2025.63    0.333    32.85
2025.73    0.331    31.97
2025.83    0.330    31.08
2025.93    0.328    30.18
2026.03    0.327    29.27
2026.13    0.325    28.36
2026.23    0.323    27.43
2026.33    0.321    26.49
2026.43    0.320    25.55
2026.53    0.318    24.59
2026.63    0.316    23.62
2026.73    0.314    22.64
2026.83    0.312    21.64
2026.93    0.310    20.63
2027.03    0.307    19.61
2027.13    0.305    18.57
2027.23    0.303    17.52
2027.33    0.301    16.45
2027.43    0.298    15.37
2027.53    0.296    14.27
2027.63    0.294    13.15
2027.73    0.291    12.01
2027.83    0.289    10.86
2027.93    0.287     9.69
2028.03    0.284     8.49
2028.13    0.282     7.28
2028.23    0.279     6.04
2028.33    0.277     4.79
2028.43    0.275     3.51
2028.53    0.272     2.21
2028.63    0.270     0.88
2028.73    0.267   359.53
2028.83    0.265   358.15
2028.93    0.262   356.75
2029.03    0.260   355.33
2029.13    0.257   353.87
2029.23    0.255   352.39
2029.33    0.253   350.88
2029.43    0.250   349.34
2029.53    0.248   347.78
2029.63    0.246   346.18
2029.73    0.243   344.55
2029.83    0.241   342.90
2029.93    0.239   341.21
2030.03    0.237   339.49
2030.13    0.235   337.74
2030.23    0.232   335.95
2030.33    0.230   334.14
2030.43    0.228   332.29
2030.53    0.226   330.40
2030.63    0.224   328.49
2030.73    0.222   326.54
2030.83    0.220   324.55
2030.93    0.219   322.53
2031.03    0.217   320.48
2031.13    0.215   318.39
2031.23    0.213   316.26
2031.33    0.211   314.09
2031.43    0.209   311.89
2031.53    0.207   309.65
2031.63    0.205   307.36
2031.73    0.203   305.03
2031.83    0.201   302.66
2031.93    0.199   300.23
2032.03    0.197   297.76
2032.13    0.195   295.22
2032.23    0.192   292.62
2032.33    0.189   289.95

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 18:18:19