Double Star Calculator - Orbit

Orbital Elements for BU346
WDS: BU346 WDS ID/Discoverer
P: 2000.000 Orbital period (years)
a: 4.6 Semi-major axis (arcseconds)
i: 75.1 Inclination (degrees)
Ω: 305.0 Longitude of ascending node (degrees)
T: 1368.000 Epoch of periastron passage (year)
e: 0.262 Eccentricity
ω: 157.1 Longitude of periastron (degrees)
Start-Year: 1025.0 Year
End-Year: 3025.0 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for BU346
Position: 144831.71-172024.4 Epoch-2000 right ascension and declination
WDS-ID: 14485-1720 WDS designation
Discoverer Code: BU346 Discover designation and components
ADS number: 9387 Aitken Double Star catalog
HD number: 130412 HD catalog number
Hipparcos number: 72423 Hipparcos catalog number
V1: 7.48 Magnitude of the primary
V2: 7.92 Magnitude of the secondary
Equinox: Equinox
Date: Date of last observation
Orbit grade: 5 Orbit grade, ranging from :
1 = Definitive
2 = Good
3 = Reliable
4 = Preliminary
5 = Indeterminate
Flags: n Flags
Ephemerides: Ephemerides
Code: Tok2025a Reference

Double Star Orbit for BU346



WDS 6th Orbit including measures of BU346

-- 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 BU346
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    2.794   279.07
--------------------------
1025.00    2.053   334.47
1035.00    1.924   336.87
1045.00    1.798   339.60
1055.00    1.673   342.74
1065.00    1.553   346.38
1075.00    1.437   350.62
1085.00    1.329   355.57
1095.00    1.231     1.36
1105.00    1.145     8.08
1115.00    1.076    15.77
1125.00    1.027    24.35
1135.00    1.001    33.58
1145.00    1.001    43.05
1155.00    1.026    52.29
1165.00    1.074    60.89
1175.00    1.143    68.61
1185.00    1.227    75.37
1195.00    1.324    81.19
1205.00    1.430    86.19
1215.00    1.543    90.48
1225.00    1.660    94.17
1235.00    1.780    97.37
1245.00    1.900   100.16
1255.00    2.021   102.62
1265.00    2.141   104.81
1275.00    2.258   106.76
1285.00    2.373   108.52
1295.00    2.484   110.13
1305.00    2.592   111.60
1315.00    2.695   112.95
1325.00    2.792   114.20
1335.00    2.885   115.38
1345.00    2.971   116.48
1355.00    3.051   117.52
1365.00    3.125   118.51
1375.00    3.192   119.46
1385.00    3.252   120.37
1395.00    3.304   121.25
1405.00    3.350   122.10
1415.00    3.388   122.94
1425.00    3.418   123.75
1435.00    3.442   124.55
1445.00    3.457   125.35
1455.00    3.466   126.14
1465.00    3.467   126.92
1475.00    3.461   127.71
1485.00    3.448   128.50
1495.00    3.428   129.30
1505.00    3.401   130.11
1515.00    3.368   130.94
1525.00    3.329   131.78
1535.00    3.284   132.64
1545.00    3.234   133.53
1555.00    3.178   134.45
1565.00    3.117   135.41
1575.00    3.051   136.40
1585.00    2.982   137.44
1595.00    2.908   138.53
1605.00    2.830   139.68
1615.00    2.749   140.89
1625.00    2.665   142.18
1635.00    2.578   143.56
1645.00    2.489   145.03
1655.00    2.399   146.61
1665.00    2.307   148.32
1675.00    2.214   150.17
1685.00    2.120   152.19
1695.00    2.027   154.39
1705.00    1.934   156.80
1715.00    1.843   159.45
1725.00    1.754   162.37
1735.00    1.669   165.60
1745.00    1.587   169.17
1755.00    1.510   173.12
1765.00    1.439   177.47
1775.00    1.377   182.25
1785.00    1.323   187.44
1795.00    1.279   193.04
1805.00    1.248   198.97
1815.00    1.229   205.14
1825.00    1.224   211.44
1835.00    1.232   217.72
1845.00    1.254   223.85
1855.00    1.288   229.71
1865.00    1.335   235.21
1875.00    1.391   240.31
1885.00    1.457   244.98
1895.00    1.530   249.23
1905.00    1.609   253.07
1915.00    1.694   256.54
1925.00    1.783   259.67
1935.00    1.876   262.49
1945.00    1.972   265.05
1955.00    2.070   267.36
1965.00    2.169   269.47
1975.00    2.270   271.39
1985.00    2.371   273.15
1995.00    2.473   274.76
2005.00    2.575   276.24
2015.00    2.677   277.61
2025.00    2.779   278.89
2035.00    2.880   280.07
2045.00    2.981   281.17
2055.00    3.081   282.20
2065.00    3.180   283.16
2075.00    3.278   284.07
2085.00    3.375   284.92
2095.00    3.470   285.73
2105.00    3.565   286.49
2115.00    3.657   287.22
2125.00    3.749   287.91
2135.00    3.839   288.56
2145.00    3.927   289.19
2155.00    4.014   289.79
2165.00    4.099   290.37
2175.00    4.182   290.92
2185.00    4.263   291.45
2195.00    4.342   291.96
2205.00    4.420   292.45
2215.00    4.495   292.93
2225.00    4.569   293.39
2235.00    4.640   293.83
2245.00    4.709   294.26
2255.00    4.777   294.68
2265.00    4.842   295.09
2275.00    4.904   295.49
2285.00    4.965   295.88
2295.00    5.024   296.26
2305.00    5.080   296.63
2315.00    5.133   296.99
2325.00    5.185   297.35
2335.00    5.234   297.69
2345.00    5.281   298.04
2355.00    5.325   298.37
2365.00    5.367   298.70
2375.00    5.406   299.03
2385.00    5.443   299.35
2395.00    5.478   299.67
2405.00    5.510   299.98
2415.00    5.539   300.29
2425.00    5.566   300.60
2435.00    5.590   300.90
2445.00    5.612   301.20
2455.00    5.631   301.50
2465.00    5.647   301.80
2475.00    5.661   302.09
2485.00    5.672   302.39
2495.00    5.680   302.68
2505.00    5.685   302.97
2515.00    5.688   303.27
2525.00    5.688   303.56
2535.00    5.685   303.85
2545.00    5.680   304.14
2555.00    5.671   304.44
2565.00    5.660   304.73
2575.00    5.646   305.03
2585.00    5.629   305.32
2595.00    5.609   305.62
2605.00    5.586   305.92
2615.00    5.561   306.23
2625.00    5.532   306.54
2635.00    5.501   306.85
2645.00    5.466   307.16
2655.00    5.429   307.48
2665.00    5.389   307.80
2675.00    5.345   308.13
2685.00    5.299   308.46
2695.00    5.250   308.80
2705.00    5.197   309.15
2715.00    5.142   309.50
2725.00    5.084   309.87
2735.00    5.022   310.24
2745.00    4.958   310.62
2755.00    4.891   311.00
2765.00    4.821   311.41
2775.00    4.747   311.82
2785.00    4.671   312.24
2795.00    4.592   312.69
2805.00    4.509   313.14
2815.00    4.424   313.62
2825.00    4.336   314.11
2835.00    4.245   314.62
2845.00    4.151   315.16
2855.00    4.054   315.72
2865.00    3.955   316.31
2875.00    3.852   316.93
2885.00    3.747   317.58
2895.00    3.640   318.28
2905.00    3.529   319.01
2915.00    3.416   319.80
2925.00    3.301   320.63
2935.00    3.184   321.53
2945.00    3.064   322.50
2955.00    2.942   323.55
2965.00    2.819   324.69
2975.00    2.694   325.93
2985.00    2.567   327.30
2995.00    2.439   328.81
3005.00    2.311   330.49
3015.00    2.182   332.36






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 17:08:44



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