Double Star Calculator - Orbit

Orbital Elements for HDS2751

WDS:	HDS2751	WDS ID/Discoverer
P:	20.610	Orbital period (years)
a:	0.119	Semi-major axis (arcseconds)
i:	33.6	Inclination (degrees)
Ω:	157.4	Longitude of ascending node (degrees)
T:	2019.520	Epoch of periastron passage (year)
e:	0.6	Eccentricity
ω:	67.0	Longitude of periastron (degrees)
Start-Year:	2014.695	Year
End-Year:	2035.305	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HDS2751
Position:	192402.50-531934.1	Epoch-2000 right ascension and declination
WDS-ID:	19240-5320	WDS designation
Discoverer Code:	HDS2751	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	181650	HD catalog number
Hipparcos number:	95360	Hipparcos catalog number
V1:	9.01	Magnitude of the primary
V2:	10.02	Magnitude of the secondary
Equinox:		Equinox
Date:	2018	Date of last observation
Orbit grade:	4	Orbit grade, ranging from : 1 = Definitive 2 = Good 3 = Reliable 4 = Preliminary 5 = Indeterminate
Flags:		Flags
Ephemerides:		Ephemerides
Code:	Tok2019c	Reference

Double Star Orbit for HDS2751

WDS 6th Orbit including measures of HDS2751

-- 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 HDS2751

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.160    20.03
--------------------------
2014.69    0.126    81.85
2014.79    0.125    82.90
2014.89    0.123    83.97
2014.99    0.122    85.07
2015.09    0.121    86.18
2015.19    0.120    87.32
2015.29    0.119    88.48
2015.39    0.117    89.66
2015.49    0.116    90.87
2015.59    0.115    92.11
2015.69    0.113    93.37
2015.79    0.112    94.67
2015.89    0.111    96.00
2015.99    0.109    97.36
2016.09    0.108    98.75
2016.19    0.107   100.19
2016.29    0.105   101.66
2016.39    0.104   103.17
2016.49    0.102   104.73
2016.59    0.101   106.34
2016.69    0.099   107.99
2016.79    0.097   109.70
2016.89    0.096   111.46
2016.99    0.094   113.29
2017.09    0.093   115.18
2017.19    0.091   117.14
2017.29    0.089   119.18
2017.39    0.087   121.30
2017.49    0.085   123.51
2017.59    0.084   125.82
2017.69    0.082   128.23
2017.79    0.080   130.76
2017.89    0.078   133.43
2017.99    0.076   136.23
2018.09    0.073   139.20
2018.19    0.071   142.35
2018.29    0.069   145.71
2018.39    0.067   149.29
2018.49    0.064   153.14
2018.59    0.062   157.30
2018.69    0.059   161.80
2018.79    0.057   166.71
2018.89    0.054   172.10
2018.99    0.051   178.02
2019.09    0.049   184.57
2019.19    0.047   191.81
2019.29    0.044   199.80
2019.39    0.043   208.54
2019.49    0.041   217.95
2019.59    0.040   227.87
2019.69    0.040   238.00
2019.79    0.041   248.02
2019.89    0.042   257.59
2019.99    0.044   266.49
2020.09    0.046   274.59
2020.19    0.049   281.86
2020.29    0.052   288.34
2020.39    0.055   294.10
2020.49    0.058   299.24
2020.59    0.062   303.83
2020.69    0.065   307.96
2020.79    0.068   311.68
2020.89    0.071   315.07
2020.99    0.075   318.16
2021.09    0.078   321.00
2021.19    0.081   323.63
2021.29    0.084   326.06
2021.39    0.087   328.33
2021.49    0.090   330.45
2021.59    0.092   332.45
2021.69    0.095   334.33
2021.79    0.098   336.11
2021.89    0.100   337.80
2021.99    0.103   339.40
2022.09    0.105   340.93
2022.19    0.107   342.40
2022.29    0.109   343.80
2022.39    0.112   345.15
2022.49    0.114   346.45
2022.59    0.116   347.70
2022.69    0.118   348.91
2022.79    0.120   350.08
2022.89    0.122   351.21
2022.99    0.123   352.31
2023.09    0.125   353.38
2023.19    0.127   354.42
2023.29    0.128   355.43
2023.39    0.130   356.41
2023.49    0.132   357.38
2023.59    0.133   358.32
2023.69    0.135   359.24
2023.79    0.136     0.14
2023.89    0.137     1.02
2023.99    0.139     1.88
2024.09    0.140     2.73
2024.19    0.141     3.57
2024.29    0.142     4.39
2024.39    0.144     5.19
2024.49    0.145     5.98
2024.59    0.146     6.77
2024.69    0.147     7.53
2024.79    0.148     8.29
2024.89    0.149     9.04
2024.99    0.150     9.78
2025.09    0.151    10.51
2025.19    0.152    11.23
2025.29    0.152    11.94
2025.39    0.153    12.65
2025.49    0.154    13.35
2025.59    0.155    14.04
2025.69    0.156    14.72
2025.79    0.156    15.40
2025.89    0.157    16.07
2025.99    0.158    16.74
2026.09    0.158    17.40
2026.19    0.159    18.06
2026.29    0.159    18.71
2026.39    0.160    19.36
2026.49    0.160    20.00
2026.59    0.161    20.64
2026.69    0.161    21.28
2026.79    0.162    21.91
2026.89    0.162    22.54
2026.99    0.162    23.16
2027.09    0.163    23.79
2027.19    0.163    24.41
2027.29    0.163    25.03
2027.39    0.164    25.64
2027.49    0.164    26.26
2027.59    0.164    26.87
2027.69    0.164    27.48
2027.79    0.165    28.09
2027.89    0.165    28.70
2027.99    0.165    29.30
2028.09    0.165    29.91
2028.19    0.165    30.52
2028.29    0.165    31.12
2028.39    0.165    31.72
2028.49    0.165    32.33
2028.59    0.165    32.93
2028.69    0.165    33.53
2028.79    0.165    34.14
2028.89    0.165    34.74
2028.99    0.165    35.35
2029.09    0.165    35.95
2029.19    0.165    36.56
2029.29    0.165    37.16
2029.39    0.165    37.77
2029.49    0.165    38.38
2029.59    0.164    38.99
2029.69    0.164    39.60
2029.79    0.164    40.21
2029.89    0.164    40.83
2029.99    0.163    41.44
2030.09    0.163    42.06
2030.19    0.163    42.68
2030.29    0.163    43.30
2030.39    0.162    43.93
2030.49    0.162    44.56
2030.59    0.162    45.19
2030.69    0.161    45.82
2030.79    0.161    46.46
2030.89    0.160    47.09
2030.99    0.160    47.74
2031.09    0.159    48.38
2031.19    0.159    49.03
2031.29    0.159    49.69
2031.39    0.158    50.35
2031.49    0.157    51.01
2031.59    0.157    51.68
2031.69    0.156    52.35
2031.79    0.156    53.02
2031.89    0.155    53.70
2031.99    0.155    54.39
2032.09    0.154    55.08
2032.19    0.153    55.78
2032.29    0.153    56.48
2032.39    0.152    57.19
2032.49    0.151    57.91
2032.59    0.151    58.63
2032.69    0.150    59.36
2032.79    0.149    60.09
2032.89    0.149    60.84
2032.99    0.148    61.59
2033.09    0.147    62.35
2033.19    0.146    63.11
2033.29    0.145    63.89
2033.39    0.145    64.67
2033.49    0.144    65.46
2033.59    0.143    66.27
2033.69    0.142    67.08
2033.79    0.141    67.90
2033.89    0.140    68.73
2033.99    0.139    69.58
2034.09    0.138    70.43
2034.19    0.137    71.30
2034.29    0.136    72.18
2034.39    0.135    73.07
2034.49    0.134    73.97
2034.59    0.133    74.89
2034.69    0.132    75.82
2034.79    0.131    76.77
2034.89    0.130    77.73
2034.99    0.129    78.71
2035.09    0.128    79.71
2035.19    0.127    80.72
2035.29    0.126    81.75

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 18:03:49