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

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 18:25:39

Orbital Elements for STF1878
WDS: STF1878 WDS ID/Discoverer
P: 1555.025 Orbital period (years)
a: 7.5181 Semi-major axis (arcseconds)
i: 99.47 Inclination (degrees)
Ω: 127.92 Longitude of ascending node (degrees)
T: 2134.477 Epoch of periastron passage (year)
e: 0.66919 Eccentricity
ω: 250.047 Longitude of periastron (degrees)
Start-Year: 1248.0 Year
End-Year: 2802.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for STF1878
Position: 144203.25+611542.9 Epoch-2000 right ascension and declination
WDS-ID: 14421+6116 WDS designation
Discoverer Code: STF1878 Discover designation and components
ADS number: 9357 Aitken Double Star catalog
HD number: 129798 HD catalog number
Hipparcos number: 71876 Hipparcos catalog number
V1: 6.33 Magnitude of the primary
V2: 9.16 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: n Flags

Double Star Orbit for STF1878



WDS 6th Orbit including measures of STF1878

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


Ephemeris of STF1878
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     4.116    313.8
-------------------------
1248.0     5.857    109.8
1258.0     5.759    109.4
1268.0     5.658    108.9
1278.0     5.556    108.4
1288.0     5.452    107.8
1298.0     5.347    107.3
1308.0     5.241    106.7
1318.0     5.133    106.1
1328.0     5.024    105.5
1338.0     4.914    104.9
1348.0     4.802    104.2
1358.0     4.690    103.5
1368.0     4.577    102.7
1378.0     4.463    101.9
1388.0     4.348    101.1
1398.0     4.233    100.2
1408.0     4.117     99.3
1418.0     4.001     98.4
1428.0     3.885     97.3
1438.0     3.769     96.2
1448.0     3.652     95.1
1458.0     3.537     93.8
1468.0     3.421     92.5
1478.0     3.306     91.1
1488.0     3.193     89.6
1498.0     3.080     88.0
1508.0     2.969     86.2
1518.0     2.860     84.3
1528.0     2.753     82.3
1538.0     2.648     80.1
1548.0     2.547     77.7
1558.0     2.450     75.2
1568.0     2.356     72.4
1578.0     2.268     69.4
1588.0     2.186     66.2
1598.0     2.110     62.7
1608.0     2.041     59.0
1618.0     1.981     55.0
1628.0     1.930     50.8
1638.0     1.889     46.4
1648.0     1.858     41.9
1658.0     1.839     37.2
1668.0     1.831     32.4
1678.0     1.835     27.7
1688.0     1.851     22.9
1698.0     1.878     18.3
1708.0     1.916     13.9
1718.0     1.963      9.6
1728.0     2.020      5.6
1738.0     2.085      1.8
1748.0     2.157    358.2
1758.0     2.236    354.9
1768.0     2.320    351.8
1778.0     2.409    349.0
1788.0     2.501    346.3
1798.0     2.597    343.8
1808.0     2.695    341.6
1818.0     2.794    339.4
1828.0     2.895    337.5
1838.0     2.996    335.6
1848.0     3.097    333.9
1858.0     3.198    332.3
1868.0     3.297    330.8
1878.0     3.394    329.3
1888.0     3.490    328.0
1898.0     3.582    326.7
1908.0     3.671    325.5
1918.0     3.755    324.3
1928.0     3.834    323.2
1938.0     3.908    322.1
1948.0     3.975    321.1
1958.0     4.034    320.1
1968.0     4.084    319.1
1978.0     4.123    318.2
1988.0     4.151    317.3
1998.0     4.165    316.3
2008.0     4.163    315.4
2018.0     4.143    314.5
2028.0     4.100    313.5
2038.0     4.033    312.6
2048.0     3.935    311.6
2058.0     3.803    310.5
2068.0     3.628    309.3
2078.0     3.404    308.1
2088.0     3.122    306.6
2098.0     2.774    304.7
2108.0     2.353    302.3
2118.0     1.859    298.6
2128.0     1.304    292.1
2138.0     0.737    275.3
2148.0     0.422    212.3
2158.0     0.821    159.2
2168.0     1.402    145.2
2178.0     1.976    139.4
2188.0     2.514    136.2
2198.0     3.011    134.1
2208.0     3.466    132.6
2218.0     3.881    131.4
2228.0     4.258    130.4
2238.0     4.603    129.6
2248.0     4.917    128.9
2258.0     5.203    128.3
2268.0     5.464    127.7
2278.0     5.702    127.2
2288.0     5.920    126.8
2298.0     6.119    126.3
2308.0     6.300    125.9
2318.0     6.465    125.5
2328.0     6.616    125.1
2338.0     6.752    124.8
2348.0     6.876    124.4
2358.0     6.988    124.1
2368.0     7.088    123.8
2378.0     7.179    123.5
2388.0     7.259    123.2
2398.0     7.330    122.8
2408.0     7.393    122.6
2418.0     7.447    122.3
2428.0     7.493    122.0
2438.0     7.532    121.7
2448.0     7.564    121.4
2458.0     7.590    121.1
2468.0     7.609    120.9
2478.0     7.621    120.6
2488.0     7.629    120.3
2498.0     7.630    120.0
2508.0     7.626    119.8
2518.0     7.617    119.5
2528.0     7.604    119.2
2538.0     7.585    118.9
2548.0     7.562    118.6
2558.0     7.535    118.4
2568.0     7.503    118.1
2578.0     7.468    117.8
2588.0     7.429    117.5
2598.0     7.386    117.2
2608.0     7.339    116.9
2618.0     7.289    116.6
2628.0     7.235    116.3
2638.0     7.178    116.0
2648.0     7.118    115.7
2658.0     7.055    115.4
2668.0     6.990    115.1
2678.0     6.921    114.7
2688.0     6.849    114.4
2698.0     6.775    114.0
2708.0     6.699    113.7
2718.0     6.619    113.3
2728.0     6.538    113.0
2738.0     6.454    112.6
2748.0     6.368    112.2
2758.0     6.280    111.8
2768.0     6.189    111.4
2778.0     6.097    111.0
2788.0     6.003    110.5
2798.0     5.907    110.1






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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