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

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 19:31:12

Orbital Elements for STF2863AB
WDS: STF2863AB WDS ID/Discoverer
P: 2501.305 Orbital period (years)
a: 9.33308 Semi-major axis (arcseconds)
i: 116.242 Inclination (degrees)
Ω: 112.047 Longitude of ascending node (degrees)
T: 1681.870 Epoch of periastron passage (year)
e: 0.74899 Eccentricity
ω: 76.324 Longitude of periastron (degrees)
Start-Year: 775.0 Year
End-Year: 3275.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for STF2863AB
Position: 220347.45+643740.7 Epoch-2000 right ascension and declination
WDS-ID: 22038+6438 WDS designation
Discoverer Code: STF2863AB Discover designation and components
ADS number: 15600 Aitken Double Star catalog
HD number: 209790 HD catalog number
Hipparcos number: 108917 Hipparcos catalog number
V1: 4.45 Magnitude of the primary
V2: 6.40 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 STF2863AB



WDS 6th Orbit including measures of STF2863AB

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


Ephemeris of STF2863AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     8.142    274.0
-------------------------
775.0      6.863    207.8
785.0      6.833    207.0
795.0      6.803    206.3
805.0      6.774    205.5
815.0      6.745    204.7
825.0      6.716    203.8
835.0      6.688    203.0
845.0      6.660    202.2
855.0      6.632    201.4
865.0      6.605    200.5
875.0      6.578    199.7
885.0      6.552    198.8
895.0      6.526    198.0
905.0      6.501    197.1
915.0      6.475    196.2
925.0      6.451    195.4
935.0      6.427    194.5
945.0      6.403    193.6
955.0      6.380    192.7
965.0      6.357    191.8
975.0      6.335    190.9
985.0      6.313    189.9
995.0      6.291    189.0
1005.0     6.270    188.1
1015.0     6.250    187.2
1025.0     6.230    186.2
1035.0     6.210    185.3
1045.0     6.191    184.3
1055.0     6.172    183.3
1065.0     6.154    182.4
1075.0     6.136    181.4
1085.0     6.118    180.4
1095.0     6.101    179.4
1105.0     6.084    178.4
1115.0     6.068    177.5
1125.0     6.052    176.5
1135.0     6.036    175.4
1145.0     6.021    174.4
1155.0     6.005    173.4
1165.0     5.990    172.4
1175.0     5.976    171.4
1185.0     5.961    170.3
1195.0     5.946    169.3
1205.0     5.932    168.3
1215.0     5.917    167.2
1225.0     5.903    166.2
1235.0     5.889    165.1
1245.0     5.874    164.1
1255.0     5.859    163.0
1265.0     5.844    161.9
1275.0     5.829    160.8
1285.0     5.813    159.7
1295.0     5.796    158.7
1305.0     5.780    157.6
1315.0     5.762    156.5
1325.0     5.743    155.3
1335.0     5.724    154.2
1345.0     5.704    153.1
1355.0     5.682    152.0
1365.0     5.659    150.8
1375.0     5.635    149.7
1385.0     5.609    148.5
1395.0     5.580    147.3
1405.0     5.550    146.2
1415.0     5.518    145.0
1425.0     5.482    143.7
1435.0     5.444    142.5
1445.0     5.402    141.3
1455.0     5.357    140.0
1465.0     5.308    138.7
1475.0     5.254    137.4
1485.0     5.194    136.0
1495.0     5.129    134.7
1505.0     5.058    133.2
1515.0     4.979    131.8
1525.0     4.892    130.3
1535.0     4.795    128.7
1545.0     4.688    127.1
1555.0     4.568    125.4
1565.0     4.435    123.6
1575.0     4.285    121.6
1585.0     4.117    119.5
1595.0     3.928    117.3
1605.0     3.713    114.8
1615.0     3.470    111.9
1625.0     3.194    108.6
1635.0     2.882    104.6
1645.0     2.531     99.6
1655.0     2.145     92.8
1665.0     1.738     83.0
1675.0     1.353     67.3
1685.0     1.088     41.6
1695.0     1.085      9.0
1705.0     1.349    343.1
1715.0     1.744    327.4
1725.0     2.175    317.7
1735.0     2.602    311.2
1745.0     3.009    306.5
1755.0     3.392    302.9
1765.0     3.748    300.1
1775.0     4.081    297.7
1785.0     4.390    295.6
1795.0     4.678    293.8
1805.0     4.947    292.2
1815.0     5.198    290.8
1825.0     5.433    289.5
1835.0     5.654    288.3
1845.0     5.861    287.2
1855.0     6.056    286.2
1865.0     6.239    285.2
1875.0     6.412    284.3
1885.0     6.576    283.4
1895.0     6.731    282.6
1905.0     6.877    281.8
1915.0     7.015    281.0
1925.0     7.147    280.3
1935.0     7.271    279.6
1945.0     7.389    278.9
1955.0     7.501    278.2
1965.0     7.607    277.6
1975.0     7.708    277.0
1985.0     7.804    276.4
1995.0     7.895    275.8
2005.0     7.982    275.2
2015.0     8.064    274.6
2025.0     8.142    274.0
2035.0     8.216    273.5
2045.0     8.287    273.0
2055.0     8.353    272.4
2065.0     8.417    271.9
2075.0     8.477    271.4
2085.0     8.534    270.9
2095.0     8.587    270.4
2105.0     8.638    269.9
2115.0     8.686    269.4
2125.0     8.732    268.9
2135.0     8.774    268.4
2145.0     8.815    268.0
2155.0     8.852    267.5
2165.0     8.888    267.0
2175.0     8.921    266.6
2185.0     8.952    266.1
2195.0     8.981    265.6
2205.0     9.008    265.2
2215.0     9.033    264.7
2225.0     9.056    264.3
2235.0     9.077    263.8
2245.0     9.097    263.4
2255.0     9.114    263.0
2265.0     9.130    262.5
2275.0     9.145    262.1
2285.0     9.157    261.6
2295.0     9.169    261.2
2305.0     9.178    260.8
2315.0     9.186    260.3
2325.0     9.193    259.9
2335.0     9.199    259.5
2345.0     9.203    259.0
2355.0     9.206    258.6
2365.0     9.207    258.2
2375.0     9.208    257.7
2385.0     9.207    257.3
2395.0     9.205    256.9
2405.0     9.202    256.4
2415.0     9.197    256.0
2425.0     9.192    255.6
2435.0     9.185    255.1
2445.0     9.178    254.7
2455.0     9.170    254.2
2465.0     9.160    253.8
2475.0     9.150    253.4
2485.0     9.139    252.9
2495.0     9.126    252.5
2505.0     9.113    252.1
2515.0     9.100    251.6
2525.0     9.085    251.2
2535.0     9.069    250.7
2545.0     9.053    250.3
2555.0     9.036    249.8
2565.0     9.018    249.4
2575.0     9.000    248.9
2585.0     8.980    248.5
2595.0     8.960    248.0
2605.0     8.940    247.5
2615.0     8.919    247.1
2625.0     8.897    246.6
2635.0     8.874    246.2
2645.0     8.851    245.7
2655.0     8.828    245.2
2665.0     8.803    244.7
2675.0     8.779    244.3
2685.0     8.753    243.8
2695.0     8.728    243.3
2705.0     8.701    242.8
2715.0     8.675    242.3
2725.0     8.648    241.9
2735.0     8.620    241.4
2745.0     8.592    240.9
2755.0     8.563    240.4
2765.0     8.534    239.9
2775.0     8.505    239.4
2785.0     8.475    238.8
2795.0     8.446    238.3
2805.0     8.415    237.8
2815.0     8.385    237.3
2825.0     8.354    236.8
2835.0     8.322    236.2
2845.0     8.291    235.7
2855.0     8.259    235.2
2865.0     8.227    234.6
2875.0     8.195    234.1
2885.0     8.162    233.5
2895.0     8.129    233.0
2905.0     8.096    232.4
2915.0     8.063    231.9
2925.0     8.030    231.3
2935.0     7.997    230.7
2945.0     7.963    230.2
2955.0     7.929    229.6
2965.0     7.895    229.0
2975.0     7.862    228.4
2985.0     7.828    227.8
2995.0     7.793    227.2
3005.0     7.759    226.6
3015.0     7.725    226.0
3025.0     7.691    225.4
3035.0     7.657    224.7
3045.0     7.623    224.1
3055.0     7.588    223.5
3065.0     7.554    222.8
3075.0     7.520    222.2
3085.0     7.486    221.5
3095.0     7.452    220.9
3105.0     7.418    220.2
3115.0     7.384    219.5
3125.0     7.351    218.9
3135.0     7.317    218.2
3145.0     7.284    217.5
3155.0     7.250    216.8
3165.0     7.217    216.1
3175.0     7.184    215.4
3185.0     7.151    214.7
3195.0     7.119    213.9
3205.0     7.087    213.2
3215.0     7.054    212.5
3225.0     7.023    211.7
3235.0     6.991    211.0
3245.0     6.960    210.2
3255.0     6.929    209.5
3265.0     6.898    208.7






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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