Double Star Calculator - Orbit

Orbital Elements for HDS1499

WDS:	HDS1499	WDS ID/Discoverer
P:	20.440	Orbital period (years)
a:	0.0815	Semi-major axis (arcseconds)
i:	36.4	Inclination (degrees)
Ω:	130.1	Longitude of ascending node (degrees)
T:	2022.053	Epoch of periastron passage (year)
e:	0.782	Eccentricity
ω:	132.9	Longitude of periastron (degrees)
Start-Year:	2014.78	Year
End-Year:	2035.22	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HDS1499
Position:	102532.95-650358.6	Epoch-2000 right ascension and declination
WDS-ID:	10255-6504	WDS designation
Discoverer Code:	HDS1499	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	307760	HD catalog number
Hipparcos number:	51031	Hipparcos catalog number
V1:	9.81	Magnitude of the primary
V2:	11.39	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:	Tok2024c	Reference

Double Star Orbit for HDS1499

WDS 6th Orbit including measures of HDS1499

-- 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 HDS1499

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.092    63.41
--------------------------
2014.78    0.128    99.32
2014.88    0.128    99.68
2014.98    0.127   100.04
2015.08    0.127   100.40
2015.18    0.126   100.77
2015.28    0.126   101.14
2015.38    0.125   101.51
2015.48    0.125   101.89
2015.58    0.124   102.26
2015.68    0.124   102.64
2015.78    0.123   103.03
2015.88    0.123   103.42
2015.98    0.122   103.81
2016.08    0.121   104.21
2016.18    0.121   104.61
2016.28    0.120   105.01
2016.38    0.119   105.42
2016.48    0.119   105.84
2016.58    0.118   106.26
2016.68    0.117   106.68
2016.78    0.116   107.11
2016.88    0.115   107.55
2016.98    0.114   108.00
2017.08    0.113   108.45
2017.18    0.113   108.91
2017.28    0.112   109.38
2017.38    0.111   109.85
2017.48    0.110   110.34
2017.58    0.109   110.83
2017.68    0.107   111.33
2017.78    0.106   111.85
2017.88    0.105   112.37
2017.98    0.104   112.91
2018.08    0.103   113.46
2018.18    0.101   114.02
2018.28    0.100   114.60
2018.38    0.099   115.19
2018.48    0.097   115.80
2018.58    0.096   116.43
2018.68    0.095   117.08
2018.78    0.093   117.74
2018.88    0.092   118.43
2018.98    0.090   119.14
2019.08    0.088   119.88
2019.18    0.087   120.65
2019.28    0.085   121.44
2019.38    0.083   122.28
2019.48    0.081   123.14
2019.58    0.079   124.05
2019.68    0.077   125.01
2019.78    0.075   126.01
2019.88    0.073   127.07
2019.98    0.071   128.19
2020.08    0.069   129.39
2020.18    0.067   130.66
2020.28    0.064   132.03
2020.38    0.062   133.51
2020.48    0.059   135.11
2020.58    0.057   136.85
2020.68    0.054   138.77
2020.78    0.051   140.90
2020.88    0.048   143.29
2020.98    0.045   146.00
2021.08    0.042   149.12
2021.18    0.038   152.76
2021.28    0.035   157.11
2021.38    0.031   162.42
2021.48    0.028   169.12
2021.58    0.024   177.82
2021.68    0.021   189.54
2021.78    0.018   205.58
2021.88    0.016   226.84
2021.98    0.015   251.59
2022.08    0.016   275.24
2022.18    0.018   294.77
2022.28    0.021   310.20
2022.38    0.023   322.56
2022.48    0.025   332.70
2022.58    0.027   341.22
2022.68    0.029   348.51
2022.78    0.032   354.83
2022.88    0.034     0.37
2022.98    0.036     5.27
2023.08    0.038     9.65
2023.18    0.040    13.58
2023.28    0.042    17.14
2023.38    0.044    20.38
2023.48    0.045    23.34
2023.58    0.047    26.06
2023.68    0.049    28.58
2023.78    0.051    30.91
2023.88    0.053    33.07
2023.98    0.055    35.10
2024.08    0.057    36.99
2024.18    0.058    38.77
2024.28    0.060    40.45
2024.38    0.062    42.03
2024.48    0.063    43.53
2024.58    0.065    44.96
2024.68    0.067    46.31
2024.78    0.068    47.60
2024.88    0.070    48.83
2024.98    0.071    50.00
2025.08    0.073    51.13
2025.18    0.074    52.21
2025.28    0.076    53.25
2025.38    0.077    54.24
2025.48    0.079    55.21
2025.58    0.080    56.13
2025.68    0.082    57.03
2025.78    0.083    57.90
2025.88    0.084    58.73
2025.98    0.086    59.55
2026.08    0.087    60.33
2026.18    0.088    61.10
2026.28    0.090    61.84
2026.38    0.091    62.56
2026.48    0.092    63.27
2026.58    0.093    63.95
2026.68    0.094    64.62
2026.78    0.095    65.27
2026.88    0.097    65.91
2026.98    0.098    66.53
2027.08    0.099    67.14
2027.18    0.100    67.73
2027.28    0.101    68.32
2027.38    0.102    68.89
2027.48    0.103    69.45
2027.58    0.104    69.99
2027.68    0.105    70.53
2027.78    0.106    71.06
2027.88    0.107    71.58
2027.98    0.108    72.09
2028.08    0.109    72.59
2028.18    0.110    73.08
2028.28    0.110    73.57
2028.38    0.111    74.04
2028.48    0.112    74.51
2028.58    0.113    74.98
2028.68    0.114    75.44
2028.78    0.114    75.89
2028.88    0.115    76.33
2028.98    0.116    76.77
2029.08    0.117    77.20
2029.18    0.117    77.63
2029.28    0.118    78.06
2029.38    0.119    78.47
2029.48    0.119    78.89
2029.58    0.120    79.30
2029.68    0.121    79.70
2029.78    0.121    80.10
2029.88    0.122    80.50
2029.98    0.122    80.89
2030.08    0.123    81.28
2030.18    0.124    81.67
2030.28    0.124    82.05
2030.38    0.125    82.43
2030.48    0.125    82.81
2030.58    0.125    83.19
2030.68    0.126    83.56
2030.78    0.126    83.93
2030.88    0.127    84.29
2030.98    0.127    84.66
2031.08    0.128    85.02
2031.18    0.128    85.38
2031.28    0.128    85.74
2031.38    0.129    86.09
2031.48    0.129    86.45
2031.58    0.129    86.80
2031.68    0.129    87.15
2031.78    0.130    87.50
2031.88    0.130    87.85
2031.98    0.130    88.19
2032.08    0.130    88.54
2032.18    0.131    88.88
2032.28    0.131    89.23
2032.38    0.131    89.57
2032.48    0.131    89.91
2032.58    0.131    90.25
2032.68    0.131    90.59
2032.78    0.131    90.93
2032.88    0.132    91.27
2032.98    0.132    91.61
2033.08    0.132    91.95
2033.18    0.132    92.29
2033.28    0.132    92.63
2033.38    0.132    92.97
2033.48    0.132    93.30
2033.58    0.132    93.64
2033.68    0.131    93.98
2033.78    0.131    94.32
2033.88    0.131    94.66
2033.98    0.131    95.00
2034.08    0.131    95.35
2034.18    0.131    95.69
2034.28    0.131    96.03
2034.38    0.130    96.37
2034.48    0.130    96.72
2034.58    0.130    97.07
2034.68    0.130    97.41
2034.78    0.129    97.76
2034.88    0.129    98.11
2034.98    0.129    98.47
2035.08    0.129    98.82
2035.18    0.128    99.18

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 16:27:36