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

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 18:32:09

Orbital Elements for STF1954AB
WDS: STF1954AB WDS ID/Discoverer
P: 1150.104 Orbital period (years)
a: 6.37793 Semi-major axis (arcseconds)
i: 101.216 Inclination (degrees)
Ω: 162.085 Longitude of ascending node (degrees)
T: 2138.944 Epoch of periastron passage (year)
e: 0.68349 Eccentricity
ω: 80.433 Longitude of periastron (degrees)
Start-Year: 1450.0 Year
End-Year: 2600.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for STF1954AB
Position: 153448.14+103220.0 Epoch-2000 right ascension and declination
WDS-ID: 15348+1032 WDS designation
Discoverer Code: STF1954AB Discover designation and components
ADS number: 9701 Aitken Double Star catalog
HD number: 138917 HD catalog number
Hipparcos number: 76276 Hipparcos catalog number
V1: 4.17 Magnitude of the primary
V2: 5.16 Magnitude of the secondary
Equinox: Equinox
Date: 2015 Date of last observation
Orbit grade: 4 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: n Flags

Double Star Orbit for STF1954AB



WDS 6th Orbit including measures of STF1954AB

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


Ephemeris of STF1954AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     4.025    171.0
-------------------------
1450.0     3.892    312.5
1460.0     3.788    311.3
1470.0     3.684    310.0
1480.0     3.579    308.6
1490.0     3.474    307.2
1500.0     3.369    305.6
1510.0     3.264    304.0
1520.0     3.161    302.2
1530.0     3.058    300.4
1540.0     2.957    298.4
1550.0     2.858    296.2
1560.0     2.762    293.9
1570.0     2.668    291.5
1580.0     2.578    288.8
1590.0     2.493    286.0
1600.0     2.412    283.0
1610.0     2.337    279.8
1620.0     2.268    276.4
1630.0     2.206    272.8
1640.0     2.152    269.0
1650.0     2.106    265.0
1660.0     2.070    260.8
1670.0     2.044    256.6
1680.0     2.028    252.2
1690.0     2.022    247.8
1700.0     2.027    243.4
1710.0     2.043    239.0
1720.0     2.069    234.7
1730.0     2.104    230.6
1740.0     2.149    226.6
1750.0     2.202    222.7
1760.0     2.262    219.1
1770.0     2.330    215.7
1780.0     2.403    212.4
1790.0     2.481    209.4
1800.0     2.564    206.6
1810.0     2.650    203.9
1820.0     2.739    201.4
1830.0     2.830    199.1
1840.0     2.923    196.9
1850.0     3.016    194.8
1860.0     3.109    192.9
1870.0     3.202    191.1
1880.0     3.294    189.4
1890.0     3.384    187.8
1900.0     3.472    186.2
1910.0     3.557    184.8
1920.0     3.639    183.4
1930.0     3.716    182.0
1940.0     3.787    180.7
1950.0     3.853    179.5
1960.0     3.912    178.3
1970.0     3.962    177.1
1980.0     4.003    176.0
1990.0     4.034    174.9
2000.0     4.051    173.8
2010.0     4.054    172.7
2020.0     4.040    171.6
2030.0     4.006    170.5
2040.0     3.947    169.3
2050.0     3.861    168.1
2060.0     3.740    166.9
2070.0     3.578    165.5
2080.0     3.365    164.0
2090.0     3.089    162.3
2100.0     2.734    160.2
2110.0     2.286    157.3
2120.0     1.731    152.8
2130.0     1.081    143.2
2140.0     0.464    104.9
2150.0     0.671     18.0
2160.0     1.346    357.8
2170.0     1.990    351.1
2180.0     2.555    347.6
2190.0     3.040    345.3
2200.0     3.454    343.6
2210.0     3.808    342.2
2220.0     4.109    341.0
2230.0     4.367    340.0
2240.0     4.586    339.1
2250.0     4.774    338.3
2260.0     4.933    337.5
2270.0     5.068    336.8
2280.0     5.181    336.1
2290.0     5.274    335.5
2300.0     5.350    334.8
2310.0     5.411    334.2
2320.0     5.457    333.6
2330.0     5.491    333.0
2340.0     5.513    332.4
2350.0     5.524    331.8
2360.0     5.526    331.2
2370.0     5.518    330.6
2380.0     5.502    330.0
2390.0     5.479    329.4
2400.0     5.448    328.8
2410.0     5.410    328.2
2420.0     5.367    327.6
2430.0     5.317    326.9
2440.0     5.262    326.3
2450.0     5.202    325.6
2460.0     5.138    325.0
2470.0     5.069    324.3
2480.0     4.996    323.5
2490.0     4.919    322.8
2500.0     4.838    322.1
2510.0     4.755    321.3
2520.0     4.668    320.5
2530.0     4.579    319.6
2540.0     4.487    318.7
2550.0     4.392    317.8
2560.0     4.296    316.8
2570.0     4.197    315.8
2580.0     4.097    314.8
2590.0     3.996    313.7






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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