Double Star Calculator - Orbit

Orbital Elements for CHR258

WDS:	CHR258	WDS ID/Discoverer
P:	13.530	Orbital period (years)
a:	0.143	Semi-major axis (arcseconds)
i:	135.1	Inclination (degrees)
Ω:	302.5	Longitude of ascending node (degrees)
T:	2010.540	Epoch of periastron passage (year)
e:	0.165	Eccentricity
ω:	9.9	Longitude of periastron (degrees)
Start-Year:	2018.235	Year
End-Year:	2031.765	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for CHR258
Position:	115600.24+352026.1	Epoch-2000 right ascension and declination
WDS-ID:	11560+3520	WDS designation
Discoverer Code:	CHR258	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	103613	HD catalog number
Hipparcos number:	58184	Hipparcos catalog number
V1:	7.0	Magnitude of the primary
V2:	9.1	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2007	Date of last observation
Orbit grade:	3	Orbit grade, ranging from : 1 = Definitive 2 = Good 3 = Reliable 4 = Preliminary 5 = Indeterminate
Flags:	n	Flags
Ephemerides:		Ephemerides
Code:	Grf2013d	Reference

Double Star Orbit for CHR258

WDS 6th Orbit including measures of CHR258

-- 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 CHR258

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.097   208.32
--------------------------
2018.23    0.156   101.86
2018.33    0.154   100.28
2018.43    0.152    98.66
2018.53    0.151    97.00
2018.63    0.149    95.30
2018.73    0.147    93.56
2018.83    0.145    91.76
2018.93    0.142    89.92
2019.03    0.140    88.02
2019.13    0.138    86.06
2019.23    0.136    84.03
2019.33    0.133    81.93
2019.43    0.131    79.76
2019.53    0.129    77.51
2019.63    0.126    75.18
2019.73    0.124    72.75
2019.83    0.122    70.24
2019.93    0.120    67.63
2020.03    0.117    64.92
2020.13    0.115    62.10
2020.23    0.113    59.18
2020.33    0.111    56.16
2020.43    0.109    53.02
2020.53    0.108    49.79
2020.63    0.106    46.45
2020.73    0.105    43.02
2020.83    0.103    39.49
2020.93    0.102    35.89
2021.03    0.101    32.22
2021.13    0.101    28.49
2021.23    0.100    24.73
2021.33    0.100    20.94
2021.43    0.100    17.13
2021.53    0.100    13.34
2021.63    0.101     9.56
2021.73    0.101     5.82
2021.83    0.102     2.12
2021.93    0.103   358.49
2022.03    0.104   354.91
2022.13    0.105   351.42
2022.23    0.106   347.99
2022.33    0.107   344.65
2022.43    0.109   341.39
2022.53    0.110   338.20
2022.63    0.111   335.10
2022.73    0.113   332.06
2022.83    0.114   329.09
2022.93    0.115   326.19
2023.03    0.116   323.34
2023.13    0.117   320.54
2023.23    0.118   317.79
2023.33    0.119   315.07
2023.43    0.119   312.38
2023.53    0.120   309.71
2023.63    0.120   307.05
2023.73    0.120   304.40
2023.83    0.120   301.75
2023.93    0.119   299.08
2024.03    0.119   296.40
2024.13    0.118   293.69
2024.23    0.117   290.94
2024.33    0.116   288.15
2024.43    0.115   285.30
2024.53    0.114   282.40
2024.63    0.112   279.42
2024.73    0.111   276.36
2024.83    0.109   273.22
2024.93    0.108   269.99
2025.03    0.106   266.65
2025.13    0.104   263.21
2025.23    0.103   259.66
2025.33    0.101   256.01
2025.43    0.100   252.24
2025.53    0.098   248.37
2025.63    0.097   244.40
2025.73    0.096   240.34
2025.83    0.096   236.21
2025.93    0.095   232.02
2026.03    0.095   227.80
2026.13    0.095   223.56
2026.23    0.095   219.32
2026.33    0.095   215.12
2026.43    0.096   210.97
2026.53    0.097   206.90
2026.63    0.098   202.92
2026.73    0.100   199.04
2026.83    0.101   195.29
2026.93    0.103   191.66
2027.03    0.105   188.17
2027.13    0.108   184.82
2027.23    0.110   181.60
2027.33    0.112   178.51
2027.43    0.115   175.56
2027.53    0.117   172.73
2027.63    0.120   170.03
2027.73    0.122   167.44
2027.83    0.125   164.95
2027.93    0.128   162.57
2028.03    0.130   160.29
2028.13    0.133   158.09
2028.23    0.135   155.98
2028.33    0.138   153.94
2028.43    0.140   151.97
2028.53    0.143   150.07
2028.63    0.145   148.23
2028.73    0.147   146.45
2028.83    0.149   144.71
2028.93    0.151   143.02
2029.03    0.153   141.38
2029.13    0.155   139.77
2029.23    0.156   138.20
2029.33    0.158   136.66
2029.43    0.159   135.14
2029.53    0.161   133.66
2029.63    0.162   132.19
2029.73    0.163   130.75
2029.83    0.164   129.32
2029.93    0.164   127.91
2030.03    0.165   126.50
2030.13    0.166   125.11
2030.23    0.166   123.73
2030.33    0.166   122.35
2030.43    0.166   120.97
2030.53    0.166   119.60
2030.63    0.166   118.22
2030.73    0.166   116.84
2030.83    0.165   115.45
2030.93    0.165   114.06
2031.03    0.164   112.65
2031.13    0.163   111.24
2031.23    0.162   109.80
2031.33    0.161   108.35
2031.43    0.160   106.88
2031.53    0.159   105.39
2031.63    0.158   103.88
2031.73    0.156   102.33

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 16:42:41