Double Star Calculator - Orbit

Orbital Elements for HDS633

WDS:	HDS633	WDS ID/Discoverer
P:	11.834	Orbital period (years)
a:	0.1429	Semi-major axis (arcseconds)
i:	56.0	Inclination (degrees)
Ω:	167.6	Longitude of ascending node (degrees)
T:	2018.190	Epoch of periastron passage (year)
e:	0.913	Eccentricity
ω:	157.9	Longitude of periastron (degrees)
Start-Year:	2019.083	Year
End-Year:	2030.917	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HDS633
Position:	045355.55-203220.1	Epoch-2000 right ascension and declination
WDS-ID:	04539-2032	WDS designation
Discoverer Code:	HDS633	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	.	HD catalog number
Hipparcos number:	22772	Hipparcos catalog number
V1:	10.78	Magnitude of the primary
V2:	11.15	Magnitude of the secondary
Equinox:		Equinox
Date:		Date of last observation
Orbit grade:	3	Orbit grade, ranging from : 1 = Definitive 2 = Good 3 = Reliable 4 = Preliminary 5 = Indeterminate
Flags:		Flags
Ephemerides:		Ephemerides
Code:	Tok2020e	Reference

Double Star Orbit for HDS633

WDS 6th Orbit including measures of HDS633

-- 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 HDS633

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.239   160.05
--------------------------
2019.08    0.089   132.59
2019.18    0.097   134.24
2019.28    0.104   135.64
2019.38    0.111   136.86
2019.48    0.118   137.94
2019.58    0.125   138.90
2019.68    0.131   139.77
2019.78    0.137   140.55
2019.88    0.143   141.27
2019.98    0.149   141.94
2020.08    0.154   142.56
2020.18    0.160   143.13
2020.28    0.165   143.67
2020.38    0.169   144.18
2020.48    0.174   144.66
2020.58    0.179   145.12
2020.68    0.183   145.55
2020.78    0.187   145.96
2020.88    0.192   146.35
2020.98    0.196   146.73
2021.08    0.199   147.10
2021.18    0.203   147.45
2021.28    0.207   147.78
2021.38    0.210   148.11
2021.48    0.213   148.43
2021.58    0.216   148.73
2021.68    0.220   149.03
2021.78    0.222   149.32
2021.88    0.225   149.61
2021.98    0.228   149.88
2022.08    0.231   150.15
2022.18    0.233   150.42
2022.28    0.235   150.67
2022.38    0.238   150.93
2022.48    0.240   151.18
2022.58    0.242   151.42
2022.68    0.244   151.66
2022.78    0.245   151.90
2022.88    0.247   152.13
2022.98    0.249   152.36
2023.08    0.250   152.59
2023.18    0.252   152.81
2023.28    0.253   153.04
2023.38    0.254   153.26
2023.48    0.255   153.48
2023.58    0.256   153.69
2023.68    0.257   153.91
2023.78    0.258   154.12
2023.88    0.259   154.33
2023.98    0.259   154.55
2024.08    0.260   154.76
2024.18    0.260   154.97
2024.28    0.260   155.18
2024.38    0.260   155.38
2024.48    0.261   155.59
2024.58    0.261   155.80
2024.68    0.260   156.01
2024.78    0.260   156.22
2024.88    0.260   156.43
2024.98    0.259   156.64
2025.08    0.259   156.85
2025.18    0.258   157.06
2025.28    0.257   157.28
2025.38    0.257   157.49
2025.48    0.256   157.71
2025.58    0.254   157.93
2025.68    0.253   158.15
2025.78    0.252   158.37
2025.88    0.251   158.59
2025.98    0.249   158.82
2026.08    0.247   159.05
2026.18    0.246   159.28
2026.28    0.244   159.52
2026.38    0.242   159.76
2026.48    0.239   160.00
2026.58    0.237   160.25
2026.68    0.235   160.51
2026.78    0.232   160.77
2026.88    0.229   161.03
2026.98    0.227   161.31
2027.08    0.224   161.59
2027.18    0.220   161.87
2027.28    0.217   162.17
2027.38    0.214   162.48
2027.48    0.210   162.79
2027.58    0.206   163.12
2027.68    0.202   163.46
2027.78    0.198   163.81
2027.88    0.194   164.18
2027.98    0.189   164.57
2028.08    0.184   164.98
2028.18    0.179   165.41
2028.28    0.174   165.86
2028.38    0.168   166.35
2028.48    0.162   166.87
2028.58    0.156   167.42
2028.68    0.150   168.03
2028.78    0.143   168.69
2028.88    0.136   169.42
2028.98    0.128   170.23
2029.08    0.120   171.15
2029.18    0.112   172.21
2029.28    0.102   173.45
2029.38    0.092   174.95
2029.48    0.082   176.83
2029.58    0.070   179.31
2029.68    0.057   182.87
2029.78    0.042   188.79
2029.88    0.025   202.32
2029.98    0.009   277.07
2030.08    0.014    21.42
2030.18    0.020    75.30
2030.28    0.029   100.01
2030.38    0.040   112.02
2030.48    0.050   119.08
2030.58    0.060   123.79
2030.68    0.069   127.21
2030.78    0.078   129.85
2030.88    0.086   131.96

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 15:31:31