Double Star Calculator - Orbit

Orbital Elements for VSP38

WDS:	VSP38	WDS ID/Discoverer
P:	14.500	Orbital period (years)
a:	0.069	Semi-major axis (arcseconds)
i:	32.0	Inclination (degrees)
Ω:	1.0	Longitude of ascending node (degrees)
T:	2020.300	Epoch of periastron passage (year)
e:	0.33	Eccentricity
ω:	337.0	Longitude of periastron (degrees)
Start-Year:	2017.75	Year
End-Year:	2032.25	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for VSP38
Position:	132157.13-511656.1	Epoch-2000 right ascension and declination
WDS-ID:	13220-5117	WDS designation
Discoverer Code:	VSP38	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	116038	HD catalog number
Hipparcos number:	65219	Hipparcos catalog number
V1:	7.1	Magnitude of the primary
V2:	7.7	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2019	Date of last observation
Orbit grade:	5	Orbit grade, ranging from : 1 = Definitive 2 = Good 3 = Reliable 4 = Preliminary 5 = Indeterminate
Flags:		Flags
Ephemerides:		Ephemerides
Code:	VSP2022b	Reference

Double Star Orbit for VSP38

WDS 6th Orbit including measures of VSP38

-- 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 VSP38

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.086   148.37
--------------------------
2017.75    0.059   231.90
2017.85    0.058   234.66
2017.95    0.057   237.55
2018.05    0.055   240.58
2018.15    0.054   243.76
2018.25    0.053   247.09
2018.35    0.051   250.58
2018.45    0.050   254.24
2018.55    0.049   258.08
2018.65    0.048   262.08
2018.75    0.047   266.25
2018.85    0.046   270.60
2018.95    0.045   275.09
2019.05    0.045   279.74
2019.15    0.044   284.51
2019.25    0.044   289.39
2019.35    0.044   294.35
2019.45    0.043   299.37
2019.55    0.043   304.42
2019.65    0.043   309.49
2019.75    0.043   314.53
2019.85    0.044   319.54
2019.95    0.044   324.48
2020.05    0.044   329.36
2020.15    0.045   334.16
2020.25    0.045   338.88
2020.35    0.045   343.50
2020.45    0.046   348.04
2020.55    0.046   352.49
2020.65    0.047   356.86
2020.75    0.047     1.15
2020.85    0.048     5.37
2020.95    0.048     9.51
2021.05    0.048    13.60
2021.15    0.049    17.62
2021.25    0.049    21.59
2021.35    0.049    25.50
2021.45    0.050    29.37
2021.55    0.050    33.18
2021.65    0.050    36.94
2021.75    0.051    40.65
2021.85    0.051    44.31
2021.95    0.051    47.92
2022.05    0.052    51.47
2022.15    0.052    54.96
2022.25    0.053    58.39
2022.35    0.053    61.76
2022.45    0.054    65.07
2022.55    0.054    68.30
2022.65    0.055    71.47
2022.75    0.056    74.57
2022.85    0.056    77.59
2022.95    0.057    80.55
2023.05    0.058    83.43
2023.15    0.058    86.23
2023.25    0.059    88.96
2023.35    0.060    91.62
2023.45    0.061    94.21
2023.55    0.062    96.73
2023.65    0.063    99.18
2023.75    0.063   101.56
2023.85    0.064   103.87
2023.95    0.065   106.12
2024.05    0.066   108.31
2024.15    0.067   110.44
2024.25    0.068   112.52
2024.35    0.069   114.53
2024.45    0.070   116.50
2024.55    0.071   118.41
2024.65    0.072   120.28
2024.75    0.073   122.10
2024.85    0.073   123.87
2024.95    0.074   125.60
2025.05    0.075   127.29
2025.15    0.076   128.95
2025.25    0.077   130.56
2025.35    0.078   132.15
2025.45    0.079   133.69
2025.55    0.079   135.21
2025.65    0.080   136.70
2025.75    0.081   138.16
2025.85    0.082   139.60
2025.95    0.082   141.01
2026.05    0.083   142.39
2026.15    0.084   143.76
2026.25    0.084   145.10
2026.35    0.085   146.42
2026.45    0.085   147.73
2026.55    0.086   149.02
2026.65    0.086   150.29
2026.75    0.087   151.55
2026.85    0.087   152.79
2026.95    0.088   154.02
2027.05    0.088   155.24
2027.15    0.089   156.45
2027.25    0.089   157.65
2027.35    0.089   158.84
2027.45    0.090   160.03
2027.55    0.090   161.20
2027.65    0.090   162.37
2027.75    0.090   163.54
2027.85    0.090   164.70
2027.95    0.090   165.86
2028.05    0.090   167.02
2028.15    0.090   168.18
2028.25    0.090   169.33
2028.35    0.090   170.49
2028.45    0.090   171.65
2028.55    0.090   172.81
2028.65    0.090   173.97
2028.75    0.090   175.14
2028.85    0.090   176.32
2028.95    0.089   177.50
2029.05    0.089   178.69
2029.15    0.089   179.89
2029.25    0.088   181.10
2029.35    0.088   182.32
2029.45    0.087   183.55
2029.55    0.087   184.80
2029.65    0.086   186.06
2029.75    0.086   187.34
2029.85    0.085   188.64
2029.95    0.084   189.95
2030.05    0.084   191.29
2030.15    0.083   192.65
2030.25    0.082   194.04
2030.35    0.081   195.46
2030.45    0.080   196.90
2030.55    0.080   198.38
2030.65    0.079   199.89
2030.75    0.078   201.44
2030.85    0.077   203.03
2030.95    0.076   204.67
2031.05    0.074   206.35
2031.15    0.073   208.08
2031.25    0.072   209.87
2031.35    0.071   211.72
2031.45    0.070   213.63
2031.55    0.069   215.61
2031.65    0.067   217.66
2031.75    0.066   219.80
2031.85    0.065   222.02
2031.95    0.063   224.33
2032.05    0.062   226.75
2032.15    0.061   229.27

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 16:55:31