| WDS: | HDS56AB | WDS ID/Discoverer |
| P: | 27.800 | Orbital period (years) |
| a: | 0.224 | Semi-major axis (arcseconds) |
| i: | 162.0 | Inclination (degrees) |
| Ω: | 112.0 | Longitude of ascending node (degrees) |
| T: | 2026.940 | Epoch of periastron passage (year) |
| e: | 0.463 | Eccentricity |
| ω: | 14.0 | Longitude of periastron (degrees) |
| Start-Year: | 2011.1 | Year |
| End-Year: | 2038.9 | Year |
| Epoch: | 2026.5 | Besselian Epoch |
Further data from the WDS Sixth Catalog of Orbits for HDS56AB |
||
| Position: | 002508.74+480251.0 | Epoch-2000 right ascension and declination |
| WDS-ID: | 00251+4803 | WDS designation |
| Discoverer Code: | HDS56AB | Discover designation and components |
| ADS number: | . | Aitken Double Star catalog |
| HD number: | 2057 | HD catalog number |
| Hipparcos number: | 1987 | Hipparcos catalog number |
| V1: | 7.72 | Magnitude of the primary |
| V2: | 10.63 | Magnitude of the secondary |
| Equinox: | 2000 | Equinox |
| Date: | 2022 | Date of last observation |
| Orbit grade: | 2 | Orbit grade, ranging from : 1 = Definitive 2 = Good 3 = Reliable 4 = Preliminary 5 = Indeterminate |
| Flags: | n | Flags |
| Ephemerides: | Ephemerides | |
| Code: | Mit2024 | Reference |
-- Image from the USNO WDS 6th Orbit Catalog (see Acknowledgements) --
| Green plus signs: | Visual (micrometric) measures |
| Violet asterisks: | Photographic measures |
| Blue symbols: | Various interferometric techniques |
| Dot-dash line: | Indicates the line of nodes |
Year Sep[“] PA[°] --------------------------------------------- 2026.50 0.122 115.18 -------------------------- 2011.10 0.323 288.67 2011.20 0.323 288.15 2011.30 0.324 287.63 2011.40 0.324 287.11 2011.50 0.325 286.59 2011.60 0.325 286.07 2011.70 0.325 285.55 2011.80 0.326 285.03 2011.90 0.326 284.51 2012.00 0.326 284.00 2012.10 0.326 283.48 2012.20 0.326 282.97 2012.30 0.327 282.46 2012.40 0.327 281.94 2012.50 0.327 281.43 2012.60 0.327 280.92 2012.70 0.327 280.40 2012.80 0.327 279.89 2012.90 0.327 279.38 2013.00 0.327 278.87 2013.10 0.327 278.35 2013.20 0.327 277.84 2013.30 0.327 277.33 2013.40 0.326 276.81 2013.50 0.326 276.30 2013.60 0.326 275.78 2013.70 0.326 275.27 2013.80 0.325 274.75 2013.90 0.325 274.23 2014.00 0.325 273.71 2014.10 0.325 273.19 2014.20 0.324 272.67 2014.30 0.324 272.15 2014.40 0.323 271.63 2014.50 0.323 271.10 2014.60 0.322 270.58 2014.70 0.322 270.05 2014.80 0.321 269.52 2014.90 0.321 268.99 2015.00 0.320 268.46 2015.10 0.320 267.92 2015.20 0.319 267.38 2015.30 0.318 266.85 2015.40 0.318 266.30 2015.50 0.317 265.76 2015.60 0.316 265.21 2015.70 0.315 264.66 2015.80 0.315 264.11 2015.90 0.314 263.56 2016.00 0.313 263.00 2016.10 0.312 262.44 2016.20 0.311 261.87 2016.30 0.310 261.31 2016.40 0.309 260.74 2016.50 0.308 260.16 2016.60 0.307 259.58 2016.70 0.306 259.00 2016.80 0.305 258.42 2016.90 0.304 257.83 2017.00 0.303 257.23 2017.10 0.302 256.63 2017.20 0.301 256.03 2017.30 0.299 255.42 2017.40 0.298 254.81 2017.50 0.297 254.19 2017.60 0.296 253.57 2017.70 0.294 252.94 2017.80 0.293 252.30 2017.90 0.292 251.66 2018.00 0.290 251.01 2018.10 0.289 250.36 2018.20 0.288 249.70 2018.30 0.286 249.04 2018.40 0.285 248.36 2018.50 0.283 247.68 2018.60 0.282 247.00 2018.70 0.280 246.30 2018.80 0.278 245.60 2018.90 0.277 244.89 2019.00 0.275 244.17 2019.10 0.273 243.44 2019.20 0.272 242.70 2019.30 0.270 241.96 2019.40 0.268 241.20 2019.50 0.266 240.43 2019.60 0.265 239.66 2019.70 0.263 238.87 2019.80 0.261 238.07 2019.90 0.259 237.26 2020.00 0.257 236.44 2020.10 0.255 235.61 2020.20 0.253 234.76 2020.30 0.251 233.90 2020.40 0.249 233.03 2020.50 0.247 232.14 2020.60 0.245 231.24 2020.70 0.243 230.32 2020.80 0.241 229.39 2020.90 0.239 228.44 2021.00 0.237 227.47 2021.10 0.235 226.49 2021.20 0.233 225.48 2021.30 0.230 224.46 2021.40 0.228 223.42 2021.50 0.226 222.36 2021.60 0.224 221.28 2021.70 0.221 220.17 2021.80 0.219 219.04 2021.90 0.217 217.89 2022.00 0.215 216.71 2022.10 0.212 215.51 2022.20 0.210 214.28 2022.30 0.207 213.02 2022.40 0.205 211.73 2022.50 0.203 210.42 2022.60 0.200 209.07 2022.70 0.198 207.69 2022.80 0.195 206.27 2022.90 0.193 204.82 2023.00 0.191 203.33 2023.10 0.188 201.80 2023.20 0.186 200.24 2023.30 0.183 198.63 2023.40 0.181 196.98 2023.50 0.178 195.28 2023.60 0.176 193.53 2023.70 0.174 191.74 2023.80 0.171 189.90 2023.90 0.169 188.00 2024.00 0.166 186.05 2024.10 0.164 184.04 2024.20 0.162 181.97 2024.30 0.159 179.85 2024.40 0.157 177.66 2024.50 0.155 175.40 2024.60 0.153 173.08 2024.70 0.150 170.69 2024.80 0.148 168.23 2024.90 0.146 165.70 2025.00 0.144 163.10 2025.10 0.142 160.42 2025.20 0.140 157.67 2025.30 0.138 154.84 2025.40 0.136 151.93 2025.50 0.135 148.95 2025.60 0.133 145.89 2025.70 0.131 142.75 2025.80 0.130 139.54 2025.90 0.128 136.25 2026.00 0.127 132.90 2026.10 0.126 129.48 2026.20 0.125 125.99 2026.30 0.124 122.44 2026.40 0.123 118.84 2026.50 0.122 115.18 2026.60 0.121 111.48 2026.70 0.121 107.74 2026.80 0.120 103.97 2026.90 0.120 100.18 2027.00 0.120 96.37 2027.10 0.120 92.56 2027.20 0.120 88.75 2027.30 0.120 84.95 2027.40 0.121 81.16 2027.50 0.121 77.41 2027.60 0.122 73.69 2027.70 0.123 70.02 2027.80 0.123 66.40 2027.90 0.125 62.84 2028.00 0.126 59.34 2028.10 0.127 55.92 2028.20 0.129 52.57 2028.30 0.130 49.30 2028.40 0.132 46.11 2028.50 0.134 43.00 2028.60 0.136 39.98 2028.70 0.138 37.05 2028.80 0.140 34.20 2028.90 0.142 31.44 2029.00 0.144 28.76 2029.10 0.146 26.17 2029.20 0.149 23.66 2029.30 0.151 21.22 2029.40 0.154 18.87 2029.50 0.156 16.59 2029.60 0.159 14.39 2029.70 0.161 12.25 2029.80 0.164 10.18 2029.90 0.167 8.18 2030.00 0.169 6.24 2030.10 0.172 4.36 2030.20 0.175 2.54 2030.30 0.177 0.77 2030.40 0.180 359.06 2030.50 0.183 357.39 2030.60 0.185 355.78 2030.70 0.188 354.21 2030.80 0.191 352.68 2030.90 0.194 351.20 2031.00 0.196 349.76 2031.10 0.199 348.35 2031.20 0.201 346.98 2031.30 0.204 345.65 2031.40 0.207 344.35 2031.50 0.209 343.09 2031.60 0.212 341.85 2031.70 0.214 340.65 2031.80 0.217 339.47 2031.90 0.219 338.32 2032.00 0.222 337.19 2032.10 0.224 336.09 2032.20 0.227 335.01 2032.30 0.229 333.96 2032.40 0.232 332.93 2032.50 0.234 331.92 2032.60 0.236 330.92 2032.70 0.238 329.95 2032.80 0.241 329.00 2032.90 0.243 328.06 2033.00 0.245 327.14 2033.10 0.247 326.24 2033.20 0.250 325.35 2033.30 0.252 324.48 2033.40 0.254 323.62 2033.50 0.256 322.78 2033.60 0.258 321.95 2033.70 0.260 321.13 2033.80 0.262 320.32 2033.90 0.264 319.53 2034.00 0.266 318.75 2034.10 0.268 317.98 2034.20 0.269 317.22 2034.30 0.271 316.47 2034.40 0.273 315.73 2034.50 0.275 315.00 2034.60 0.276 314.28 2034.70 0.278 313.56 2034.80 0.280 312.86 2034.90 0.282 312.17 2035.00 0.283 311.48 2035.10 0.285 310.80 2035.20 0.286 310.13 2035.30 0.288 309.46 2035.40 0.289 308.80 2035.50 0.291 308.15 2035.60 0.292 307.51 2035.70 0.294 306.87 2035.80 0.295 306.24 2035.90 0.296 305.61 2036.00 0.298 304.99 2036.10 0.299 304.37 2036.20 0.300 303.76 2036.30 0.301 303.16 2036.40 0.303 302.56 2036.50 0.304 301.96 2036.60 0.305 301.37 2036.70 0.306 300.78 2036.80 0.307 300.20 2036.90 0.308 299.62 2037.00 0.309 299.04 2037.10 0.310 298.47 2037.20 0.311 297.90 2037.30 0.312 297.34 2037.40 0.313 296.78 2037.50 0.314 296.22 2037.60 0.315 295.66 2037.70 0.315 295.11 2037.80 0.316 294.56 2037.90 0.317 294.02 2038.00 0.318 293.47 2038.10 0.318 292.93 2038.20 0.319 292.39 2038.30 0.320 291.86 2038.40 0.320 291.32 2038.50 0.321 290.79 2038.60 0.321 290.26 2038.70 0.322 289.73 2038.80 0.323 289.20 2038.90 0.323 288.67
| Double Star Calculator: | Version 1.2 ($Rev: 2397 $) |
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| Report created: |
2026-06-25 14:39:11 |