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

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 19:38:02

Orbital Elements for STF2957AB
WDS: STF2957AB WDS ID/Discoverer
P: 2068.524 Orbital period (years)
a: 9.21287 Semi-major axis (arcseconds)
i: 91.378 Inclination (degrees)
Ω: 47.402 Longitude of ascending node (degrees)
T: 1697.005 Epoch of periastron passage (year)
e: 0.78625 Eccentricity
ω: 97.335 Longitude of periastron (degrees)
Start-Year: 991.0 Year
End-Year: 3059.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for STF2957AB
Position: 225623.64+172708.6 Epoch-2000 right ascension and declination
WDS-ID: 22564+1727 WDS designation
Discoverer Code: STF2957AB Discover designation and components
ADS number: 16379 Aitken Double Star catalog
HD number: 216863 HD catalog number
Hipparcos number: 113280 Hipparcos catalog number
V1: 9.20 Magnitude of the primary
V2: 10.88 Magnitude of the secondary
Equinox: Equinox
Date: 2008 Date of last observation
Orbit grade: 5 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: n Flags

Double Star Orbit for STF2957AB



WDS 6th Orbit including measures of STF2957AB

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


Ephemeris of STF2957AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     4.389    224.4
-------------------------
991.0      4.981     51.4
1001.0     5.055     51.3
1011.0     5.129     51.2
1021.0     5.201     51.2
1031.0     5.272     51.1
1041.0     5.342     51.0
1051.0     5.411     50.9
1061.0     5.479     50.8
1071.0     5.545     50.8
1081.0     5.610     50.7
1091.0     5.674     50.6
1101.0     5.737     50.6
1111.0     5.798     50.5
1121.0     5.858     50.4
1131.0     5.916     50.4
1141.0     5.973     50.3
1151.0     6.028     50.3
1161.0     6.082     50.2
1171.0     6.134     50.1
1181.0     6.184     50.1
1191.0     6.232     50.0
1201.0     6.278     50.0
1211.0     6.323     49.9
1221.0     6.365     49.9
1231.0     6.406     49.8
1241.0     6.444     49.7
1251.0     6.480     49.7
1261.0     6.513     49.6
1271.0     6.544     49.6
1281.0     6.573     49.5
1291.0     6.599     49.5
1301.0     6.622     49.4
1311.0     6.642     49.4
1321.0     6.659     49.3
1331.0     6.673     49.3
1341.0     6.684     49.2
1351.0     6.691     49.2
1361.0     6.695     49.1
1371.0     6.694     49.1
1381.0     6.690     49.0
1391.0     6.681     49.0
1401.0     6.668     48.9
1411.0     6.650     48.9
1421.0     6.627     48.8
1431.0     6.599     48.8
1441.0     6.564     48.7
1451.0     6.524     48.7
1461.0     6.477     48.6
1471.0     6.423     48.6
1481.0     6.361     48.5
1491.0     6.291     48.5
1501.0     6.212     48.4
1511.0     6.124     48.4
1521.0     6.025     48.3
1531.0     5.914     48.2
1541.0     5.791     48.2
1551.0     5.653     48.1
1561.0     5.499     48.0
1571.0     5.328     48.0
1581.0     5.136     47.9
1591.0     4.922     47.8
1601.0     4.681     47.7
1611.0     4.409     47.6
1621.0     4.101     47.5
1631.0     3.750     47.3
1641.0     3.348     47.2
1651.0     2.885     46.9
1661.0     2.348     46.6
1671.0     1.726     46.1
1681.0     1.015     44.8
1691.0     0.237     35.8
1701.0     0.571    232.0
1711.0     1.321    229.1
1721.0     1.972    228.3
1731.0     2.515    227.8
1741.0     2.959    227.5
1751.0     3.322    227.3
1761.0     3.620    227.1
1771.0     3.866    227.0
1781.0     4.069    226.8
1791.0     4.236    226.7
1801.0     4.375    226.6
1811.0     4.490    226.5
1821.0     4.583    226.4
1831.0     4.659    226.3
1841.0     4.719    226.2
1851.0     4.766    226.1
1861.0     4.800    226.0
1871.0     4.824    225.9
1881.0     4.839    225.8
1891.0     4.844    225.7
1901.0     4.843    225.6
1911.0     4.834    225.5
1921.0     4.819    225.4
1931.0     4.798    225.3
1941.0     4.771    225.2
1951.0     4.740    225.1
1961.0     4.704    225.0
1971.0     4.664    224.9
1981.0     4.621    224.8
1991.0     4.573    224.7
2001.0     4.523    224.6
2011.0     4.469    224.5
2021.0     4.412    224.4
2031.0     4.353    224.3
2041.0     4.291    224.2
2051.0     4.227    224.1
2061.0     4.161    223.9
2071.0     4.092    223.8
2081.0     4.022    223.7
2091.0     3.950    223.5
2101.0     3.876    223.4
2111.0     3.800    223.2
2121.0     3.723    223.1
2131.0     3.644    222.9
2141.0     3.565    222.8
2151.0     3.483    222.6
2161.0     3.401    222.4
2171.0     3.318    222.2
2181.0     3.233    222.0
2191.0     3.147    221.8
2201.0     3.061    221.5
2211.0     2.974    221.3
2221.0     2.885    221.0
2231.0     2.796    220.8
2241.0     2.707    220.5
2251.0     2.616    220.2
2261.0     2.525    219.8
2271.0     2.434    219.5
2281.0     2.342    219.1
2291.0     2.249    218.7
2301.0     2.156    218.2
2311.0     2.063    217.7
2321.0     1.969    217.2
2331.0     1.876    216.6
2341.0     1.782    215.9
2351.0     1.687    215.2
2361.0     1.593    214.4
2371.0     1.499    213.5
2381.0     1.405    212.4
2391.0     1.311    211.2
2401.0     1.217    209.9
2411.0     1.124    208.3
2421.0     1.032    206.4
2431.0     0.941    204.1
2441.0     0.852    201.4
2451.0     0.765    198.0
2461.0     0.681    193.8
2471.0     0.601    188.4
2481.0     0.529    181.5
2491.0     0.466    172.5
2501.0     0.418    161.2
2511.0     0.390    147.6
2521.0     0.386    132.8
2531.0     0.407    118.7
2541.0     0.450    106.6
2551.0     0.509     97.0
2561.0     0.579     89.5
2571.0     0.657     83.7
2581.0     0.740     79.2
2591.0     0.826     75.6
2601.0     0.915     72.7
2611.0     1.006     70.3
2621.0     1.097     68.3
2631.0     1.190     66.6
2641.0     1.284     65.2
2651.0     1.378     64.0
2661.0     1.472     62.9
2671.0     1.567     61.9
2681.0     1.662     61.1
2691.0     1.756     60.3
2701.0     1.851     59.7
2711.0     1.946     59.1
2721.0     2.040     58.5
2731.0     2.135     58.0
2741.0     2.229     57.5
2751.0     2.323     57.1
2761.0     2.417     56.7
2771.0     2.510     56.4
2781.0     2.603     56.0
2791.0     2.696     55.7
2801.0     2.789     55.4
2811.0     2.881     55.1
2821.0     2.972     54.9
2831.0     3.064     54.6
2841.0     3.154     54.4
2851.0     3.245     54.2
2861.0     3.334     54.0
2871.0     3.424     53.8
2881.0     3.512     53.6
2891.0     3.600     53.5
2901.0     3.688     53.3
2911.0     3.775     53.1
2921.0     3.861     53.0
2931.0     3.947     52.8
2941.0     4.032     52.7
2951.0     4.116     52.6
2961.0     4.200     52.4
2971.0     4.283     52.3
2981.0     4.365     52.2
2991.0     4.446     52.1
3001.0     4.527     52.0
3011.0     4.607     51.9
3021.0     4.686     51.8
3031.0     4.764     51.7
3041.0     4.841     51.6
3051.0     4.917     51.5






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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