Double Star Calculator - Orbit

Orbital Elements for BU1250
WDS: BU1250 WDS ID/Discoverer
P: 2028.857 Orbital period (years)
a: 7.80753 Semi-major axis (arcseconds)
i: 76.924 Inclination (degrees)
Ω: 23.435 Longitude of ascending node (degrees)
T: 1724.617 Epoch of periastron passage (year)
e: 0.78277 Eccentricity
ω: 306.129 Longitude of periastron (degrees)
Start-Year: 1010.57175 Year
End-Year: 3039.42825 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for BU1250
Position: 172449.67+304424.0 Epoch-2000 right ascension and declination
WDS-ID: 17248+3044 WDS designation
Discoverer Code: BU1250 Discover designation and components
ADS number: 10540 Aitken Double Star catalog
HD number: . HD catalog number
Hipparcos number: . Hipparcos catalog number
V1: 10.83 Magnitude of the primary
V2: 11.13 Magnitude of the secondary
Equinox: Equinox
Date: 2015 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: Izm2019 Reference

Double Star Orbit for BU1250



WDS 6th Orbit including measures of BU1250

-- 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 BU1250
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    1.989   123.75
--------------------------
1010.57    9.772   191.53
1020.57    9.785   191.68
1030.57    9.796   191.84
1040.57    9.805   192.00
1050.57    9.812   192.16
1060.57    9.817   192.32
1070.57    9.820   192.48
1080.57    9.821   192.63
1090.57    9.820   192.79
1100.57    9.816   192.95
1110.57    9.811   193.11
1120.57    9.802   193.27
1130.57    9.792   193.43
1140.57    9.779   193.58
1150.57    9.764   193.74
1160.57    9.747   193.90
1170.57    9.726   194.06
1180.57    9.704   194.23
1190.57    9.678   194.39
1200.57    9.650   194.55
1210.57    9.620   194.72
1220.57    9.586   194.88
1230.57    9.549   195.05
1240.57    9.510   195.21
1250.57    9.467   195.38
1260.57    9.422   195.55
1270.57    9.373   195.73
1280.57    9.321   195.90
1290.57    9.266   196.08
1300.57    9.207   196.26
1310.57    9.144   196.44
1320.57    9.078   196.62
1330.57    9.008   196.81
1340.57    8.934   197.00
1350.57    8.856   197.19
1360.57    8.773   197.38
1370.57    8.687   197.58
1380.57    8.595   197.79
1390.57    8.499   198.00
1400.57    8.399   198.21
1410.57    8.293   198.43
1420.57    8.181   198.65
1430.57    8.065   198.88
1440.57    7.942   199.12
1450.57    7.813   199.37
1460.57    7.678   199.62
1470.57    7.536   199.88
1480.57    7.387   200.16
1490.57    7.231   200.44
1500.57    7.067   200.74
1510.57    6.894   201.05
1520.57    6.712   201.38
1530.57    6.521   201.73
1540.57    6.319   202.10
1550.57    6.107   202.49
1560.57    5.883   202.92
1570.57    5.646   203.38
1580.57    5.394   203.88
1590.57    5.128   204.43
1600.57    4.845   205.04
1610.57    4.544   205.73
1620.57    4.222   206.52
1630.57    3.877   207.45
1640.57    3.507   208.57
1650.57    3.108   209.97
1660.57    2.678   211.79
1670.57    2.212   214.36
1680.57    1.710   218.37
1690.57    1.178   225.91
1700.57    0.654   245.93
1710.57    0.435   313.44
1720.57    0.841   359.22
1730.57    1.338    12.66
1740.57    1.753    19.08
1750.57    2.057    23.26
1760.57    2.261    26.51
1770.57    2.389    29.32
1780.57    2.460    31.90
1790.57    2.490    34.38
1800.57    2.491    36.83
1810.57    2.469    39.31
1820.57    2.432    41.84
1830.57    2.384    44.46
1840.57    2.328    47.21
1850.57    2.267    50.09
1860.57    2.203    53.14
1870.57    2.139    56.37
1880.57    2.076    59.80
1890.57    2.016    63.44
1900.57    1.960    67.30
1910.57    1.909    71.37
1920.57    1.866    75.65
1930.57    1.830    80.11
1940.57    1.803    84.73
1950.57    1.786    89.47
1960.57    1.779    94.27
1970.57    1.782    99.08
1980.57    1.797   103.84
1990.57    1.821   108.49
2000.57    1.856   113.00
2010.57    1.900   117.32
2020.57    1.954   121.43
2030.57    2.015   125.30
2040.57    2.083   128.93
2050.57    2.158   132.32
2060.57    2.239   135.47
2070.57    2.324   138.40
2080.57    2.414   141.12
2090.57    2.508   143.63
2100.57    2.605   145.97
2110.57    2.704   148.13
2120.57    2.806   150.13
2130.57    2.910   152.00
2140.57    3.015   153.74
2150.57    3.122   155.35
2160.57    3.230   156.86
2170.57    3.339   158.27
2180.57    3.449   159.60
2190.57    3.558   160.84
2200.57    3.669   162.00
2210.57    3.779   163.10
2220.57    3.890   164.14
2230.57    4.000   165.12
2240.57    4.111   166.04
2250.57    4.221   166.92
2260.57    4.331   167.75
2270.57    4.440   168.55
2280.57    4.550   169.30
2290.57    4.658   170.02
2300.57    4.766   170.70
2310.57    4.874   171.36
2320.57    4.981   171.99
2330.57    5.087   172.59
2340.57    5.192   173.17
2350.57    5.297   173.72
2360.57    5.401   174.25
2370.57    5.504   174.76
2380.57    5.607   175.26
2390.57    5.708   175.73
2400.57    5.809   176.19
2410.57    5.909   176.64
2420.57    6.008   177.06
2430.57    6.106   177.48
2440.57    6.203   177.88
2450.57    6.299   178.27
2460.57    6.394   178.65
2470.57    6.488   179.02
2480.57    6.581   179.37
2490.57    6.673   179.72
2500.57    6.764   180.06
2510.57    6.854   180.39
2520.57    6.942   180.71
2530.57    7.030   181.02
2540.57    7.117   181.32
2550.57    7.202   181.62
2560.57    7.287   181.91
2570.57    7.370   182.19
2580.57    7.452   182.47
2590.57    7.533   182.74
2600.57    7.613   183.01
2610.57    7.692   183.27
2620.57    7.769   183.52
2630.57    7.845   183.77
2640.57    7.920   184.02
2650.57    7.994   184.26
2660.57    8.067   184.49
2670.57    8.138   184.73
2680.57    8.208   184.95
2690.57    8.277   185.18
2700.57    8.344   185.40
2710.57    8.411   185.62
2720.57    8.475   185.83
2730.57    8.539   186.04
2740.57    8.601   186.25
2750.57    8.662   186.45
2760.57    8.722   186.65
2770.57    8.780   186.85
2780.57    8.837   187.05
2790.57    8.892   187.24
2800.57    8.946   187.43
2810.57    8.999   187.62
2820.57    9.050   187.81
2830.57    9.099   187.99
2840.57    9.148   188.18
2850.57    9.194   188.36
2860.57    9.239   188.54
2870.57    9.283   188.72
2880.57    9.325   188.89
2890.57    9.366   189.07
2900.57    9.405   189.24
2910.57    9.442   189.41
2920.57    9.478   189.58
2930.57    9.512   189.75
2940.57    9.545   189.92
2950.57    9.575   190.08
2960.57    9.605   190.25
2970.57    9.632   190.41
2980.57    9.658   190.58
2990.57    9.682   190.74
3000.57    9.704   190.90
3010.57    9.724   191.06
3020.57    9.743   191.22
3030.57    9.759   191.38






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 17:38:23



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