Double Star Calculator - Orbit

Orbital Elements for CHR17

WDS:	CHR17	WDS ID/Discoverer
P:	13.930	Orbital period (years)
a:	0.15	Semi-major axis (arcseconds)
i:	45.4	Inclination (degrees)
Ω:	125.3	Longitude of ascending node (degrees)
T:	1995.870	Epoch of periastron passage (year)
e:	0.6	Eccentricity
ω:	297.9	Longitude of periastron (degrees)
Start-Year:	2018.035	Year
End-Year:	2031.965	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for CHR17
Position:	043358.48+150949.3	Epoch-2000 right ascension and declination
WDS-ID:	04340+1510	WDS designation
Discoverer Code:	CHR17	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	285931	HD catalog number
Hipparcos number:	21280	Hipparcos catalog number
V1:	8.93	Magnitude of the primary
V2:	10.20	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2001	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:	Cve2008d	Reference

Double Star Orbit for CHR17

WDS 6th Orbit including measures of CHR17

-- 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 CHR17

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.125   195.48
--------------------------
2018.04    0.194   263.69
2018.13    0.194   264.55
2018.23    0.195   265.41
2018.33    0.195   266.27
2018.43    0.195   267.13
2018.53    0.195   268.00
2018.63    0.195   268.86
2018.73    0.195   269.72
2018.83    0.194   270.58
2018.93    0.194   271.45
2019.03    0.194   272.32
2019.13    0.193   273.19
2019.23    0.193   274.07
2019.33    0.192   274.95
2019.43    0.191   275.84
2019.53    0.191   276.73
2019.63    0.190   277.64
2019.73    0.189   278.55
2019.83    0.188   279.47
2019.93    0.187   280.40
2020.03    0.185   281.35
2020.13    0.184   282.31
2020.23    0.182   283.28
2020.33    0.181   284.27
2020.43    0.179   285.28
2020.53    0.177   286.31
2020.63    0.175   287.36
2020.73    0.173   288.44
2020.83    0.171   289.54
2020.93    0.168   290.68
2021.03    0.166   291.85
2021.13    0.163   293.05
2021.23    0.160   294.30
2021.33    0.157   295.60
2021.43    0.154   296.95
2021.53    0.151   298.35
2021.63    0.147   299.83
2021.73    0.143   301.38
2021.83    0.139   303.02
2021.93    0.135   304.76
2022.03    0.130   306.62
2022.13    0.125   308.62
2022.23    0.120   310.78
2022.33    0.115   313.14
2022.43    0.109   315.73
2022.53    0.103   318.62
2022.63    0.097   321.86
2022.73    0.091   325.56
2022.83    0.084   329.85
2022.93    0.077   334.90
2023.03    0.070   340.97
2023.13    0.063   348.42
2023.23    0.056   357.69
2023.33    0.050     9.30
2023.43    0.046    23.53
2023.53    0.044    39.97
2023.63    0.044    57.11
2023.73    0.047    73.07
2023.83    0.051    86.74
2023.93    0.057    98.03
2024.03    0.062   107.35
2024.13    0.067   115.16
2024.23    0.072   121.86
2024.33    0.077   127.73
2024.43    0.081   132.98
2024.53    0.085   137.75
2024.63    0.088   142.14
2024.73    0.091   146.22
2024.83    0.094   150.06
2024.93    0.096   153.68
2025.03    0.099   157.13
2025.13    0.101   160.42
2025.23    0.103   163.57
2025.33    0.105   166.60
2025.43    0.107   169.52
2025.53    0.109   172.34
2025.63    0.110   175.06
2025.73    0.112   177.70
2025.83    0.114   180.25
2025.93    0.116   182.73
2026.03    0.117   185.14
2026.13    0.119   187.48
2026.23    0.121   189.75
2026.33    0.122   191.96
2026.43    0.124   194.11
2026.53    0.126   196.20
2026.63    0.127   198.24
2026.73    0.129   200.22
2026.83    0.131   202.16
2026.93    0.133   204.04
2027.03    0.134   205.88
2027.13    0.136   207.67
2027.23    0.138   209.42
2027.33    0.139   211.12
2027.43    0.141   212.79
2027.53    0.143   214.41
2027.63    0.144   216.00
2027.73    0.146   217.56
2027.83    0.148   219.07
2027.93    0.149   220.56
2028.03    0.151   222.01
2028.13    0.152   223.43
2028.23    0.154   224.82
2028.33    0.156   226.18
2028.43    0.157   227.51
2028.53    0.159   228.82
2028.63    0.160   230.10
2028.73    0.162   231.36
2028.83    0.163   232.60
2028.93    0.165   233.81
2029.03    0.166   235.00
2029.13    0.168   236.17
2029.23    0.169   237.32
2029.33    0.171   238.45
2029.43    0.172   239.56
2029.53    0.173   240.65
2029.63    0.175   241.73
2029.73    0.176   242.80
2029.83    0.177   243.84
2029.93    0.178   244.88
2030.03    0.180   245.89
2030.13    0.181   246.90
2030.23    0.182   247.89
2030.33    0.183   248.88
2030.43    0.184   249.85
2030.53    0.185   250.80
2030.63    0.186   251.75
2030.73    0.187   252.69
2030.83    0.188   253.62
2030.93    0.189   254.55
2031.03    0.189   255.46
2031.13    0.190   256.37
2031.23    0.191   257.27
2031.33    0.191   258.16
2031.43    0.192   259.05
2031.53    0.193   259.93
2031.63    0.193   260.81
2031.73    0.193   261.69
2031.83    0.194   262.56
2031.93    0.194   263.43

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 15:26:23