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Double Star Calculator - Orbital Elements
- Revision:
$Rev: 1216 $
- Report created:
2025-07-11 19:31:12
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
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
Image from the USNO WDS 6th Orbit Catalog (see Acknowledgements)
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
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 .
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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