Double Star Calculator - Orbit

Orbital Elements for B342

WDS:	B342	WDS ID/Discoverer
P:	1236.000	Orbital period (years)
a:	1.38	Semi-major axis (arcseconds)
i:	73.0	Inclination (degrees)
Ω:	103.0	Longitude of ascending node (degrees)
T:	2016.000	Epoch of periastron passage (year)
e:	0.68	Eccentricity
ω:	38.0	Longitude of periastron (degrees)
Start-Year:	1407.0	Year
End-Year:	2643.0	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for B342
Position:	172925.62-383101.0	Epoch-2000 right ascension and declination
WDS-ID:	17294-3831	WDS designation
Discoverer Code:	B342	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	158156	HD catalog number
Hipparcos number:	85589	Hipparcos catalog number
V1:	6.82	Magnitude of the primary
V2:	7.57	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2008	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:	Hrt2013c	Reference

Double Star Orbit for B342

WDS 6th Orbit including measures of B342

-- 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 B342

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.258   129.38
--------------------------
1407.00    1.858   296.17
1417.00    1.840   296.52
1427.00    1.821   296.88
1437.00    1.801   297.24
1447.00    1.780   297.61
1457.00    1.759   297.99
1467.00    1.736   298.38
1477.00    1.712   298.78
1487.00    1.688   299.19
1497.00    1.662   299.61
1507.00    1.636   300.05
1517.00    1.609   300.50
1527.00    1.581   300.97
1537.00    1.552   301.45
1547.00    1.523   301.96
1557.00    1.492   302.48
1567.00    1.461   303.03
1577.00    1.429   303.60
1587.00    1.396   304.19
1597.00    1.363   304.82
1607.00    1.328   305.47
1617.00    1.293   306.17
1627.00    1.257   306.90
1637.00    1.221   307.67
1647.00    1.184   308.49
1657.00    1.146   309.37
1667.00    1.107   310.31
1677.00    1.068   311.31
1687.00    1.028   312.40
1697.00    0.987   313.57
1707.00    0.947   314.84
1717.00    0.905   316.23
1727.00    0.863   317.75
1737.00    0.821   319.43
1747.00    0.779   321.28
1757.00    0.737   323.35
1767.00    0.695   325.68
1777.00    0.653   328.30
1787.00    0.612   331.27
1797.00    0.571   334.68
1807.00    0.532   338.59
1817.00    0.495   343.10
1827.00    0.461   348.32
1837.00    0.429   354.34
1847.00    0.402     1.24
1857.00    0.381     9.02
1867.00    0.366    17.56
1877.00    0.359    26.64
1887.00    0.359    35.89
1897.00    0.367    44.93
1907.00    0.382    53.41
1917.00    0.402    61.16
1927.00    0.426    68.11
1937.00    0.451    74.30
1947.00    0.476    79.83
1957.00    0.498    84.85
1967.00    0.513    89.49
1977.00    0.519    93.93
1987.00    0.511    98.39
1997.00    0.482   103.19
2007.00    0.427   108.91
2017.00    0.348   116.82
2027.00    0.253   130.30
2037.00    0.170   158.91
2047.00    0.162   207.36
2057.00    0.241   239.22
2067.00    0.348   253.50
2077.00    0.457   260.98
2087.00    0.563   265.59
2097.00    0.664   268.76
2107.00    0.760   271.11
2117.00    0.849   272.95
2127.00    0.933   274.45
2137.00    1.012   275.71
2147.00    1.086   276.79
2157.00    1.156   277.73
2167.00    1.221   278.58
2177.00    1.283   279.34
2187.00    1.340   280.03
2197.00    1.395   280.66
2207.00    1.446   281.25
2217.00    1.494   281.80
2227.00    1.539   282.32
2237.00    1.582   282.81
2247.00    1.622   283.27
2257.00    1.659   283.71
2267.00    1.694   284.14
2277.00    1.727   284.54
2287.00    1.757   284.93
2297.00    1.786   285.31
2307.00    1.812   285.68
2317.00    1.837   286.04
2327.00    1.859   286.39
2337.00    1.880   286.73
2347.00    1.899   287.06
2357.00    1.917   287.38
2367.00    1.933   287.71
2377.00    1.947   288.02
2387.00    1.960   288.33
2397.00    1.971   288.64
2407.00    1.981   288.95
2417.00    1.989   289.25
2427.00    1.996   289.55
2437.00    2.002   289.84
2447.00    2.006   290.14
2457.00    2.009   290.44
2467.00    2.011   290.73
2477.00    2.012   291.02
2487.00    2.011   291.32
2497.00    2.009   291.61
2507.00    2.006   291.91
2517.00    2.002   292.20
2527.00    1.997   292.50
2537.00    1.990   292.80
2547.00    1.983   293.10
2557.00    1.974   293.40
2567.00    1.965   293.71
2577.00    1.954   294.02
2587.00    1.942   294.33
2597.00    1.930   294.65
2607.00    1.916   294.97
2617.00    1.901   295.30
2627.00    1.886   295.63
2637.00    1.869   295.97

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 17:39:08