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

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 19:08:54

Orbital Elements for STF2603
WDS: STF2603 WDS ID/Discoverer
P: 2753.326 Orbital period (years)
a: 8.01058 Semi-major axis (arcseconds)
i: 70.932 Inclination (degrees)
Ω: 128.309 Longitude of ascending node (degrees)
T: 1598.565 Epoch of periastron passage (year)
e: 0.83937 Eccentricity
ω: 111.258 Longitude of periastron (degrees)
Start-Year: 649.0 Year
End-Year: 3401.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for STF2603
Position: 194810.35+701604.5 Epoch-2000 right ascension and declination
WDS-ID: 19482+7016 WDS designation
Discoverer Code: STF2603 Discover designation and components
ADS number: 13007 Aitken Double Star catalog
HD number: 188119 HD catalog number
Hipparcos number: 97433 Hipparcos catalog number
V1: 4.01 Magnitude of the primary
V2: 6.87 Magnitude of the secondary
Equinox: Equinox
Date: 2012 Date of last observation
Orbit grade: 5 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: n Flags

Double Star Orbit for STF2603



WDS 6th Orbit including measures of STF2603

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


Ephemeris of STF2603
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     3.210     22.3
-------------------------
649.0      8.015     99.4
659.0      8.027     99.7
669.0      8.038     99.9
679.0      8.049    100.1
689.0      8.058    100.4
699.0      8.067    100.6
709.0      8.075    100.8
719.0      8.083    101.0
729.0      8.089    101.3
739.0      8.095    101.5
749.0      8.100    101.7
759.0      8.105    102.0
769.0      8.108    102.2
779.0      8.111    102.4
789.0      8.112    102.6
799.0      8.113    102.9
809.0      8.113    103.1
819.0      8.112    103.3
829.0      8.111    103.5
839.0      8.108    103.8
849.0      8.104    104.0
859.0      8.100    104.2
869.0      8.094    104.4
879.0      8.088    104.7
889.0      8.080    104.9
899.0      8.071    105.1
909.0      8.062    105.4
919.0      8.051    105.6
929.0      8.039    105.8
939.0      8.026    106.0
949.0      8.012    106.3
959.0      7.997    106.5
969.0      7.981    106.7
979.0      7.963    107.0
989.0      7.944    107.2
999.0      7.924    107.5
1009.0     7.902    107.7
1019.0     7.880    107.9
1029.0     7.855    108.2
1039.0     7.830    108.4
1049.0     7.803    108.7
1059.0     7.774    108.9
1069.0     7.744    109.1
1079.0     7.713    109.4
1089.0     7.679    109.6
1099.0     7.645    109.9
1109.0     7.608    110.2
1119.0     7.570    110.4
1129.0     7.530    110.7
1139.0     7.488    110.9
1149.0     7.444    111.2
1159.0     7.398    111.5
1169.0     7.351    111.8
1179.0     7.301    112.0
1189.0     7.248    112.3
1199.0     7.194    112.6
1209.0     7.137    112.9
1219.0     7.078    113.2
1229.0     7.017    113.5
1239.0     6.952    113.8
1249.0     6.885    114.1
1259.0     6.815    114.4
1269.0     6.743    114.7
1279.0     6.667    115.1
1289.0     6.587    115.4
1299.0     6.505    115.8
1309.0     6.418    116.1
1319.0     6.328    116.5
1329.0     6.234    116.9
1339.0     6.136    117.3
1349.0     6.033    117.7
1359.0     5.926    118.1
1369.0     5.813    118.5
1379.0     5.695    119.0
1389.0     5.572    119.4
1399.0     5.442    119.9
1409.0     5.306    120.4
1419.0     5.162    121.0
1429.0     5.010    121.6
1439.0     4.850    122.2
1449.0     4.681    122.8
1459.0     4.502    123.5
1469.0     4.311    124.3
1479.0     4.107    125.1
1489.0     3.889    126.1
1499.0     3.654    127.1
1509.0     3.401    128.3
1519.0     3.127    129.7
1529.0     2.828    131.4
1539.0     2.499    133.5
1549.0     2.135    136.3
1559.0     1.732    140.3
1569.0     1.287    146.9
1579.0     0.815    161.1
1589.0     0.450    205.4
1599.0     0.627    270.0
1609.0     1.065    292.4
1619.0     1.461    301.9
1629.0     1.774    307.6
1639.0     2.015    311.8
1649.0     2.200    315.1
1659.0     2.345    318.0
1669.0     2.459    320.6
1679.0     2.550    322.9
1689.0     2.623    325.2
1699.0     2.683    327.3
1709.0     2.732    329.3
1719.0     2.772    331.3
1729.0     2.805    333.2
1739.0     2.832    335.1
1749.0     2.855    336.9
1759.0     2.874    338.7
1769.0     2.890    340.5
1779.0     2.903    342.3
1789.0     2.915    344.1
1799.0     2.925    345.8
1809.0     2.935    347.5
1819.0     2.943    349.3
1829.0     2.951    351.0
1839.0     2.959    352.7
1849.0     2.967    354.4
1859.0     2.975    356.1
1869.0     2.983    357.8
1879.0     2.991    359.4
1889.0     3.001      1.1
1899.0     3.010      2.7
1909.0     3.021      4.4
1919.0     3.032      6.0
1929.0     3.044      7.6
1939.0     3.057      9.2
1949.0     3.071     10.8
1959.0     3.086     12.4
1969.0     3.102     13.9
1979.0     3.118     15.5
1989.0     3.136     17.0
1999.0     3.155     18.5
2009.0     3.175     20.0
2019.0     3.196     21.5
2029.0     3.219     22.9
2039.0     3.242     24.3
2049.0     3.266     25.7
2059.0     3.291     27.1
2069.0     3.317     28.5
2079.0     3.344     29.8
2089.0     3.373     31.2
2099.0     3.402     32.5
2109.0     3.431     33.7
2119.0     3.462     35.0
2129.0     3.494     36.2
2139.0     3.526     37.4
2149.0     3.560     38.6
2159.0     3.594     39.8
2169.0     3.628     40.9
2179.0     3.664     42.0
2189.0     3.700     43.1
2199.0     3.737     44.2
2209.0     3.774     45.3
2219.0     3.812     46.3
2229.0     3.851     47.3
2239.0     3.890     48.3
2249.0     3.929     49.3
2259.0     3.969     50.2
2269.0     4.010     51.2
2279.0     4.051     52.1
2289.0     4.092     53.0
2299.0     4.134     53.9
2309.0     4.176     54.7
2319.0     4.218     55.6
2329.0     4.261     56.4
2339.0     4.304     57.2
2349.0     4.347     58.0
2359.0     4.391     58.8
2369.0     4.434     59.6
2379.0     4.478     60.3
2389.0     4.522     61.1
2399.0     4.567     61.8
2409.0     4.611     62.5
2419.0     4.656     63.2
2429.0     4.700     63.9
2439.0     4.745     64.5
2449.0     4.790     65.2
2459.0     4.835     65.8
2469.0     4.880     66.5
2479.0     4.925     67.1
2489.0     4.970     67.7
2499.0     5.015     68.3
2509.0     5.060     68.9
2519.0     5.105     69.5
2529.0     5.150     70.0
2539.0     5.195     70.6
2549.0     5.240     71.1
2559.0     5.284     71.7
2569.0     5.329     72.2
2579.0     5.374     72.7
2589.0     5.418     73.2
2599.0     5.463     73.7
2609.0     5.507     74.2
2619.0     5.551     74.7
2629.0     5.595     75.2
2639.0     5.639     75.7
2649.0     5.683     76.1
2659.0     5.727     76.6
2669.0     5.770     77.0
2679.0     5.813     77.5
2689.0     5.856     77.9
2699.0     5.899     78.3
2709.0     5.942     78.8
2719.0     5.984     79.2
2729.0     6.026     79.6
2739.0     6.068     80.0
2749.0     6.110     80.4
2759.0     6.151     80.8
2769.0     6.193     81.2
2779.0     6.234     81.6
2789.0     6.274     82.0
2799.0     6.315     82.3
2809.0     6.355     82.7
2819.0     6.395     83.1
2829.0     6.434     83.4
2839.0     6.474     83.8
2849.0     6.513     84.2
2859.0     6.551     84.5
2869.0     6.590     84.8
2879.0     6.628     85.2
2889.0     6.665     85.5
2899.0     6.703     85.9
2909.0     6.740     86.2
2919.0     6.776     86.5
2929.0     6.813     86.8
2939.0     6.849     87.2
2949.0     6.884     87.5
2959.0     6.920     87.8
2969.0     6.954     88.1
2979.0     6.989     88.4
2989.0     7.023     88.7
2999.0     7.057     89.0
3009.0     7.090     89.3
3019.0     7.123     89.6
3029.0     7.155     89.9
3039.0     7.188     90.2
3049.0     7.219     90.5
3059.0     7.250     90.8
3069.0     7.281     91.0
3079.0     7.312     91.3
3089.0     7.341     91.6
3099.0     7.371     91.9
3109.0     7.400     92.1
3119.0     7.428     92.4
3129.0     7.457     92.7
3139.0     7.484     92.9
3149.0     7.511     93.2
3159.0     7.538     93.5
3169.0     7.564     93.7
3179.0     7.590     94.0
3189.0     7.615     94.3
3199.0     7.639     94.5
3209.0     7.663     94.8
3219.0     7.687     95.0
3229.0     7.710     95.3
3239.0     7.732     95.5
3249.0     7.754     95.8
3259.0     7.776     96.0
3269.0     7.796     96.3
3279.0     7.817     96.5
3289.0     7.836     96.7
3299.0     7.855     97.0
3309.0     7.874     97.2
3319.0     7.892     97.5
3329.0     7.909     97.7
3339.0     7.925     97.9
3349.0     7.941     98.2
3359.0     7.957     98.4
3369.0     7.971     98.7
3379.0     7.985     98.9
3389.0     7.999     99.1
3399.0     8.011     99.4






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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