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

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 19:21:07

Orbital Elements for STT437AB
WDS: STT437AB WDS ID/Discoverer
P: 1218.096 Orbital period (years)
a: 3.65733 Semi-major axis (arcseconds)
i: 103.165 Inclination (degrees)
Ω: 7.623 Longitude of ascending node (degrees)
T: 2180.047 Epoch of periastron passage (year)
e: 0.50075 Eccentricity
ω: 65.074 Longitude of periastron (degrees)
Start-Year: 1416.0 Year
End-Year: 2634.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for STT437AB
Position: 212050.12+322710.2 Epoch-2000 right ascension and declination
WDS-ID: 21208+3227 WDS designation
Discoverer Code: STT437AB Discover designation and components
ADS number: 14889 Aitken Double Star catalog
HD number: 203358 HD catalog number
Hipparcos number: 105390 Hipparcos catalog number
V1: 7.15 Magnitude of the primary
V2: 7.42 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: Flags

Double Star Orbit for STT437AB



WDS 6th Orbit including measures of STT437AB

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


Ephemeris of STT437AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     2.463     18.2
-------------------------
1416.0     3.676    174.0
1426.0     3.622    173.4
1436.0     3.565    172.8
1446.0     3.505    172.1
1456.0     3.442    171.5
1466.0     3.377    170.8
1476.0     3.310    170.1
1486.0     3.241    169.4
1496.0     3.169    168.6
1506.0     3.095    167.8
1516.0     3.019    167.0
1526.0     2.942    166.1
1536.0     2.863    165.2
1546.0     2.783    164.2
1556.0     2.701    163.2
1566.0     2.618    162.1
1576.0     2.534    160.9
1586.0     2.449    159.7
1596.0     2.364    158.3
1606.0     2.278    156.9
1616.0     2.191    155.3
1626.0     2.105    153.6
1636.0     2.019    151.8
1646.0     1.934    149.8
1656.0     1.850    147.6
1666.0     1.767    145.2
1676.0     1.686    142.6
1686.0     1.607    139.7
1696.0     1.532    136.6
1706.0     1.460    133.1
1716.0     1.393    129.2
1726.0     1.332    125.0
1736.0     1.277    120.4
1746.0     1.230    115.5
1756.0     1.192    110.2
1766.0     1.163    104.5
1776.0     1.145     98.7
1786.0     1.138     92.7
1796.0     1.143     86.7
1806.0     1.159     80.8
1816.0     1.185     75.1
1826.0     1.221     69.7
1836.0     1.265     64.7
1846.0     1.317     60.0
1856.0     1.376     55.7
1866.0     1.440     51.7
1876.0     1.508     48.1
1886.0     1.579     44.9
1896.0     1.652     41.9
1906.0     1.727     39.2
1916.0     1.803     36.7
1926.0     1.878     34.3
1936.0     1.953     32.2
1946.0     2.026     30.3
1956.0     2.096     28.4
1966.0     2.164     26.7
1976.0     2.228     25.1
1986.0     2.288     23.6
1996.0     2.343     22.1
2006.0     2.391     20.7
2016.0     2.432     19.4
2026.0     2.466     18.1
2036.0     2.489     16.8
2046.0     2.503     15.6
2056.0     2.504     14.3
2066.0     2.491     13.1
2076.0     2.463     11.8
2086.0     2.417     10.5
2096.0     2.352      9.1
2106.0     2.265      7.7
2116.0     2.155      6.1
2126.0     2.019      4.3
2136.0     1.856      2.2
2146.0     1.665    359.7
2156.0     1.450    356.5
2166.0     1.212    352.0
2176.0     0.960    345.4
2186.0     0.710    333.9
2196.0     0.502    311.5
2206.0     0.432    272.8
2216.0     0.560    238.7
2226.0     0.791    220.9
2236.0     1.050    211.5
2246.0     1.311    205.8
2256.0     1.565    202.0
2266.0     1.807    199.3
2276.0     2.034    197.2
2286.0     2.247    195.4
2296.0     2.445    194.0
2306.0     2.628    192.8
2316.0     2.797    191.8
2326.0     2.952    190.8
2336.0     3.094    190.0
2346.0     3.224    189.2
2356.0     3.342    188.5
2366.0     3.449    187.8
2376.0     3.545    187.1
2386.0     3.631    186.5
2396.0     3.708    186.0
2406.0     3.777    185.4
2416.0     3.836    184.9
2426.0     3.888    184.3
2436.0     3.932    183.8
2446.0     3.969    183.3
2456.0     3.999    182.8
2466.0     4.023    182.4
2476.0     4.041    181.9
2486.0     4.052    181.4
2496.0     4.058    180.9
2506.0     4.058    180.5
2516.0     4.054    180.0
2526.0     4.044    179.5
2536.0     4.030    179.0
2546.0     4.011    178.6
2556.0     3.988    178.1
2566.0     3.960    177.6
2576.0     3.929    177.1
2586.0     3.894    176.6
2596.0     3.855    176.0
2606.0     3.813    175.5
2616.0     3.767    175.0
2626.0     3.718    174.4






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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