Double Star Calculator - Orbit

Orbital Elements for A484

WDS:	A484	WDS ID/Discoverer
P:	18.936	Orbital period (years)
a:	0.1555	Semi-major axis (arcseconds)
i:	106.4	Inclination (degrees)
Ω:	111.5	Longitude of ascending node (degrees)
T:	2000.147	Epoch of periastron passage (year)
e:	0.787	Eccentricity
ω:	309.9	Longitude of periastron (degrees)
Start-Year:	2015.532	Year
End-Year:	2034.468	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for A484
Position:	051020.70-073537.2	Epoch-2000 right ascension and declination
WDS-ID:	05103-0736	WDS designation
Discoverer Code:	A484	Discover designation and components
ADS number:	3748	Aitken Double Star catalog
HD number:	33507	HD catalog number
Hipparcos number:	24076	Hipparcos catalog number
V1:	8.18	Magnitude of the primary
V2:	8.38	Magnitude of the secondary
Equinox:		Equinox
Date:	2018	Date of last observation
Orbit grade:	2	Orbit grade, ranging from : 1 = Definitive 2 = Good 3 = Reliable 4 = Preliminary 5 = Indeterminate
Flags:	n	Flags
Ephemerides:		Ephemerides
Code:	Tok2019c	Reference

Double Star Orbit for A484

WDS 6th Orbit including measures of A484

-- 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 A484

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.157   315.65
--------------------------
2015.53    0.183   298.29
2015.63    0.181   298.05
2015.73    0.179   297.80
2015.83    0.177   297.55
2015.93    0.175   297.29
2016.03    0.172   297.02
2016.13    0.170   296.75
2016.23    0.167   296.47
2016.33    0.164   296.18
2016.43    0.161   295.87
2016.53    0.158   295.56
2016.63    0.155   295.24
2016.73    0.152   294.90
2016.83    0.149   294.54
2016.93    0.145   294.17
2017.03    0.141   293.78
2017.13    0.137   293.36
2017.23    0.133   292.92
2017.33    0.128   292.46
2017.43    0.124   291.95
2017.53    0.119   291.41
2017.63    0.113   290.81
2017.73    0.108   290.16
2017.83    0.102   289.43
2017.93    0.096   288.61
2018.03    0.089   287.67
2018.13    0.082   286.58
2018.23    0.074   285.26
2018.33    0.066   283.63
2018.43    0.057   281.52
2018.53    0.048   278.60
2018.63    0.037   274.13
2018.73    0.027   266.08
2018.83    0.016   246.85
2018.93    0.010   190.26
2019.03    0.017   140.69
2019.13    0.027   123.73
2019.23    0.035   115.48
2019.33    0.041   109.97
2019.43    0.044   105.55
2019.53    0.046   101.62
2019.63    0.047    97.90
2019.73    0.047    94.24
2019.83    0.046    90.53
2019.93    0.045    86.72
2020.03    0.045    82.77
2020.13    0.043    78.63
2020.23    0.042    74.29
2020.33    0.041    69.75
2020.43    0.041    65.00
2020.53    0.040    60.06
2020.63    0.039    54.98
2020.73    0.039    49.79
2020.83    0.039    44.56
2020.93    0.039    39.36
2021.03    0.040    34.24
2021.13    0.041    29.26
2021.23    0.041    24.49
2021.33    0.043    19.95
2021.43    0.044    15.67
2021.53    0.046    11.67
2021.63    0.047     7.94
2021.73    0.049     4.48
2021.83    0.051     1.27
2021.93    0.053   358.32
2022.03    0.055   355.58
2022.13    0.057   353.06
2022.23    0.060   350.73
2022.33    0.062   348.57
2022.43    0.065   346.57
2022.53    0.067   344.72
2022.63    0.069   343.00
2022.73    0.072   341.39
2022.83    0.074   339.89
2022.93    0.077   338.49
2023.03    0.079   337.18
2023.13    0.082   335.94
2023.23    0.084   334.78
2023.33    0.087   333.69
2023.43    0.089   332.66
2023.53    0.092   331.69
2023.63    0.094   330.76
2023.73    0.097   329.89
2023.83    0.099   329.05
2023.93    0.102   328.26
2024.03    0.104   327.50
2024.13    0.107   326.78
2024.23    0.109   326.09
2024.33    0.111   325.43
2024.43    0.114   324.80
2024.53    0.116   324.19
2024.63    0.118   323.61
2024.73    0.121   323.05
2024.83    0.123   322.51
2024.93    0.125   321.99
2025.03    0.127   321.49
2025.13    0.130   321.00
2025.23    0.132   320.53
2025.33    0.134   320.08
2025.43    0.136   319.64
2025.53    0.138   319.21
2025.63    0.140   318.80
2025.73    0.142   318.40
2025.83    0.144   318.01
2025.93    0.146   317.63
2026.03    0.148   317.26
2026.13    0.150   316.90
2026.23    0.152   316.55
2026.33    0.154   316.20
2026.43    0.156   315.87
2026.53    0.158   315.55
2026.63    0.159   315.23
2026.73    0.161   314.91
2026.83    0.163   314.61
2026.93    0.165   314.31
2027.03    0.166   314.02
2027.13    0.168   313.73
2027.23    0.170   313.45
2027.33    0.171   313.18
2027.43    0.173   312.91
2027.53    0.174   312.64
2027.63    0.176   312.38
2027.73    0.177   312.12
2027.83    0.179   311.87
2027.93    0.180   311.62
2028.03    0.182   311.37
2028.13    0.183   311.13
2028.23    0.184   310.90
2028.33    0.185   310.66
2028.43    0.187   310.43
2028.53    0.188   310.20
2028.63    0.189   309.98
2028.73    0.190   309.75
2028.83    0.191   309.53
2028.93    0.192   309.32
2029.03    0.193   309.10
2029.13    0.194   308.89
2029.23    0.195   308.68
2029.33    0.196   308.47
2029.43    0.197   308.26
2029.53    0.198   308.06
2029.63    0.199   307.85
2029.73    0.200   307.65
2029.83    0.201   307.45
2029.93    0.201   307.26
2030.03    0.202   307.06
2030.13    0.203   306.86
2030.23    0.203   306.67
2030.33    0.204   306.47
2030.43    0.204   306.28
2030.53    0.205   306.09
2030.63    0.205   305.90
2030.73    0.206   305.71
2030.83    0.206   305.52
2030.93    0.206   305.33
2031.03    0.207   305.14
2031.13    0.207   304.96
2031.23    0.207   304.77
2031.33    0.207   304.58
2031.43    0.207   304.40
2031.53    0.207   304.21
2031.63    0.207   304.02
2031.73    0.207   303.84
2031.83    0.207   303.65
2031.93    0.207   303.46
2032.03    0.207   303.28
2032.13    0.206   303.09
2032.23    0.206   302.90
2032.33    0.206   302.71
2032.43    0.205   302.52
2032.53    0.205   302.33
2032.63    0.204   302.14
2032.73    0.204   301.95
2032.83    0.203   301.76
2032.93    0.203   301.56
2033.03    0.202   301.37
2033.13    0.201   301.17
2033.23    0.200   300.97
2033.33    0.199   300.77
2033.43    0.198   300.57
2033.53    0.197   300.36
2033.63    0.196   300.15
2033.73    0.195   299.94
2033.83    0.193   299.73
2033.93    0.192   299.51
2034.03    0.190   299.29
2034.13    0.189   299.07
2034.23    0.187   298.84
2034.33    0.185   298.61
2034.43    0.184   298.38

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 15:34:47