Content-Type: text/html; charset=UTF-8 Double Star Calculator - Orbital Elements

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 19:39:38

Orbital Elements for STF2979
WDS: STF2979 WDS ID/Discoverer
P: 2470.561 Orbital period (years)
a: 5.58854 Semi-major axis (arcseconds)
i: 77.441 Inclination (degrees)
Ω: 64.682 Longitude of ascending node (degrees)
T: 2206.224 Epoch of periastron passage (year)
e: 0.87206 Eccentricity
ω: 270.253 Longitude of periastron (degrees)
Start-Year: 790.0 Year
End-Year: 3260.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for STF2979
Position: 230747.88+394746.8 Epoch-2000 right ascension and declination
WDS-ID: 23078+3947 WDS designation
Discoverer Code: STF2979 Discover designation and components
ADS number: 16527 Aitken Double Star catalog
HD number: 218453 HD catalog number
Hipparcos number: 114214 Hipparcos catalog number
V1: 7.92 Magnitude of the primary
V2: 9.99 Magnitude of the secondary
Equinox: Equinox
Date: 2015 Date of last observation
Orbit grade: 5 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: Flags

Double Star Orbit for STF2979



WDS 6th Orbit including measures of STF2979

Image from the USNO WDS 6th Orbit Catalog (see Acknowledgements)


Ephemeris of STF2979
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     2.751    229.2
-------------------------
790.0      2.324    139.1
800.0      2.318    140.0
810.0      2.313    140.9
820.0      2.308    141.8
830.0      2.303    142.7
840.0      2.298    143.7
850.0      2.294    144.6
860.0      2.291    145.5
870.0      2.288    146.4
880.0      2.285    147.4
890.0      2.282    148.3
900.0      2.280    149.2
910.0      2.278    150.1
920.0      2.277    151.1
930.0      2.276    152.0
940.0      2.275    152.9
950.0      2.275    153.9
960.0      2.275    154.8
970.0      2.275    155.8
980.0      2.276    156.7
990.0      2.277    157.6
1000.0     2.279    158.6
1010.0     2.281    159.5
1020.0     2.283    160.4
1030.0     2.286    161.3
1040.0     2.289    162.3
1050.0     2.293    163.2
1060.0     2.297    164.1
1070.0     2.301    165.0
1080.0     2.306    165.9
1090.0     2.311    166.9
1100.0     2.316    167.8
1110.0     2.321    168.7
1120.0     2.327    169.6
1130.0     2.334    170.4
1140.0     2.340    171.3
1150.0     2.347    172.2
1160.0     2.354    173.1
1170.0     2.362    174.0
1180.0     2.370    174.8
1190.0     2.378    175.7
1200.0     2.386    176.5
1210.0     2.395    177.4
1220.0     2.404    178.2
1230.0     2.413    179.1
1240.0     2.423    179.9
1250.0     2.432    180.7
1260.0     2.442    181.5
1270.0     2.453    182.3
1280.0     2.463    183.1
1290.0     2.474    183.9
1300.0     2.484    184.7
1310.0     2.495    185.5
1320.0     2.506    186.3
1330.0     2.518    187.0
1340.0     2.529    187.8
1350.0     2.541    188.6
1360.0     2.552    189.3
1370.0     2.564    190.0
1380.0     2.576    190.8
1390.0     2.588    191.5
1400.0     2.600    192.2
1410.0     2.612    192.9
1420.0     2.625    193.6
1430.0     2.637    194.3
1440.0     2.649    195.0
1450.0     2.662    195.7
1460.0     2.674    196.4
1470.0     2.687    197.1
1480.0     2.699    197.7
1490.0     2.711    198.4
1500.0     2.724    199.1
1510.0     2.736    199.7
1520.0     2.748    200.4
1530.0     2.760    201.0
1540.0     2.772    201.6
1550.0     2.784    202.3
1560.0     2.796    202.9
1570.0     2.808    203.5
1580.0     2.820    204.1
1590.0     2.831    204.7
1600.0     2.842    205.3
1610.0     2.853    205.9
1620.0     2.864    206.5
1630.0     2.875    207.1
1640.0     2.885    207.7
1650.0     2.895    208.3
1660.0     2.905    208.8
1670.0     2.914    209.4
1680.0     2.923    210.0
1690.0     2.932    210.5
1700.0     2.940    211.1
1710.0     2.948    211.7
1720.0     2.956    212.2
1730.0     2.963    212.8
1740.0     2.970    213.3
1750.0     2.976    213.9
1760.0     2.982    214.4
1770.0     2.987    215.0
1780.0     2.991    215.5
1790.0     2.995    216.0
1800.0     2.998    216.6
1810.0     3.000    217.1
1820.0     3.002    217.7
1830.0     3.003    218.2
1840.0     3.003    218.7
1850.0     3.002    219.3
1860.0     3.000    219.8
1870.0     2.997    220.3
1880.0     2.993    220.9
1890.0     2.988    221.4
1900.0     2.981    222.0
1910.0     2.974    222.5
1920.0     2.965    223.1
1930.0     2.954    223.6
1940.0     2.942    224.2
1950.0     2.928    224.7
1960.0     2.912    225.3
1970.0     2.894    225.9
1980.0     2.874    226.5
1990.0     2.852    227.1
2000.0     2.827    227.7
2010.0     2.799    228.3
2020.0     2.768    228.9
2030.0     2.733    229.5
2040.0     2.695    230.2
2050.0     2.653    230.9
2060.0     2.606    231.6
2070.0     2.554    232.3
2080.0     2.495    233.1
2090.0     2.430    233.9
2100.0     2.356    234.7
2110.0     2.273    235.6
2120.0     2.179    236.6
2130.0     2.071    237.6
2140.0     1.946    238.8
2150.0     1.800    240.2
2160.0     1.625    241.9
2170.0     1.411    244.0
2180.0     1.143    247.0
2190.0     0.797    252.2
2200.0     0.360    268.7
2210.0     0.257     28.4
2220.0     0.702     55.2
2230.0     1.069     61.6
2240.0     1.351     64.9
2250.0     1.574     67.1
2260.0     1.755     68.9
2270.0     1.906     70.3
2280.0     2.033     71.6
2290.0     2.143     72.7
2300.0     2.238     73.7
2310.0     2.322     74.6
2320.0     2.396     75.5
2330.0     2.461     76.3
2340.0     2.520     77.1
2350.0     2.572     77.8
2360.0     2.618     78.6
2370.0     2.660     79.3
2380.0     2.698     79.9
2390.0     2.732     80.6
2400.0     2.762     81.2
2410.0     2.790     81.9
2420.0     2.814     82.5
2430.0     2.836     83.1
2440.0     2.855     83.7
2450.0     2.873     84.3
2460.0     2.888     84.9
2470.0     2.901     85.4
2480.0     2.913     86.0
2490.0     2.923     86.6
2500.0     2.932     87.1
2510.0     2.939     87.7
2520.0     2.945     88.3
2530.0     2.949     88.8
2540.0     2.953     89.4
2550.0     2.955     89.9
2560.0     2.957     90.5
2570.0     2.957     91.0
2580.0     2.957     91.6
2590.0     2.955     92.1
2600.0     2.953     92.7
2610.0     2.951     93.3
2620.0     2.947     93.8
2630.0     2.943     94.4
2640.0     2.938     94.9
2650.0     2.933     95.5
2660.0     2.927     96.1
2670.0     2.921     96.6
2680.0     2.914     97.2
2690.0     2.906     97.8
2700.0     2.898     98.3
2710.0     2.890     98.9
2720.0     2.882     99.5
2730.0     2.873    100.1
2740.0     2.864    100.7
2750.0     2.854    101.3
2760.0     2.844    101.9
2770.0     2.834    102.5
2780.0     2.824    103.1
2790.0     2.813    103.7
2800.0     2.802    104.3
2810.0     2.791    104.9
2820.0     2.780    105.5
2830.0     2.769    106.2
2840.0     2.757    106.8
2850.0     2.746    107.4
2860.0     2.734    108.1
2870.0     2.722    108.7
2880.0     2.710    109.4
2890.0     2.699    110.1
2900.0     2.687    110.7
2910.0     2.675    111.4
2920.0     2.662    112.1
2930.0     2.650    112.8
2940.0     2.638    113.5
2950.0     2.626    114.2
2960.0     2.614    114.9
2970.0     2.602    115.6
2980.0     2.591    116.3
2990.0     2.579    117.0
3000.0     2.567    117.7
3010.0     2.555    118.5
3020.0     2.544    119.2
3030.0     2.532    120.0
3040.0     2.521    120.7
3050.0     2.510    121.5
3060.0     2.499    122.3
3070.0     2.488    123.1
3080.0     2.477    123.8
3090.0     2.467    124.6
3100.0     2.456    125.4
3110.0     2.446    126.2
3120.0     2.436    127.1
3130.0     2.427    127.9
3140.0     2.417    128.7
3150.0     2.408    129.5
3160.0     2.399    130.4
3170.0     2.390    131.2
3180.0     2.382    132.1
3190.0     2.373    132.9
3200.0     2.365    133.8
3210.0     2.358    134.7
3220.0     2.350    135.5
3230.0     2.343    136.4
3240.0     2.337    137.3
3250.0     2.330    138.2






Disclaimer
This result is provided without warranty. For all terms, see the Full Disclaimer. Copyright (C) 2025. The Double Star Calculator and the results generated are licensed under CC BY-NC-SA 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.


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