| WDS: | A551AB | WDS ID/Discoverer |
| P: | 54.400 | Orbital period (years) |
| a: | 0.289 | Semi-major axis (arcseconds) |
| i: | 84.1 | Inclination (degrees) |
| Ω: | 62.6 | Longitude of ascending node (degrees) |
| T: | 2002.130 | Epoch of periastron passage (year) |
| e: | 0.442 | Eccentricity |
| ω: | 34.4 | Longitude of periastron (degrees) |
| Start-Year: | 1997.8 | Year |
| End-Year: | 2052.2 | Year |
| Epoch: | 2026.5 | Besselian Epoch |
Further data from the WDS Sixth Catalog of Orbits for A551AB |
||
| Position: | 082829.16-023101.6 | Epoch-2000 right ascension and declination |
| WDS-ID: | 08285-0231 | WDS designation |
| Discoverer Code: | A551AB | Discover designation and components |
| ADS number: | 6828 | Aitken Double Star catalog |
| HD number: | 71663 | HD catalog number |
| Hipparcos number: | 41564 | Hipparcos catalog number |
| V1: | 7.0 | Magnitude of the primary |
| V2: | 7.1 | Magnitude of the secondary |
| Equinox: | 2000 | Equinox |
| Date: | 2014 | 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: | Doc2017a | 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 0.371 245.51 -------------------------- 1997.80 0.164 58.36 1997.90 0.166 58.54 1998.00 0.167 58.73 1998.10 0.168 58.91 1998.20 0.169 59.09 1998.30 0.170 59.27 1998.40 0.171 59.44 1998.50 0.171 59.62 1998.60 0.172 59.79 1998.70 0.173 59.96 1998.80 0.173 60.13 1998.90 0.174 60.30 1999.00 0.174 60.47 1999.10 0.174 60.64 1999.20 0.174 60.81 1999.30 0.174 60.97 1999.40 0.174 61.14 1999.50 0.174 61.31 1999.60 0.174 61.48 1999.70 0.174 61.65 1999.80 0.174 61.81 1999.90 0.173 61.98 2000.00 0.172 62.15 2000.10 0.172 62.33 2000.20 0.171 62.50 2000.30 0.170 62.68 2000.40 0.169 62.85 2000.50 0.168 63.03 2000.60 0.167 63.22 2000.70 0.165 63.40 2000.80 0.164 63.59 2000.90 0.162 63.78 2001.00 0.160 63.98 2001.10 0.159 64.18 2001.20 0.157 64.38 2001.30 0.155 64.59 2001.40 0.152 64.81 2001.50 0.150 65.03 2001.60 0.148 65.26 2001.70 0.145 65.50 2001.80 0.143 65.74 2001.90 0.140 66.00 2002.00 0.137 66.26 2002.10 0.134 66.54 2002.20 0.131 66.83 2002.30 0.128 67.13 2002.40 0.125 67.45 2002.50 0.122 67.79 2002.60 0.118 68.14 2002.70 0.115 68.52 2002.80 0.111 68.91 2002.90 0.108 69.34 2003.00 0.104 69.80 2003.10 0.100 70.28 2003.20 0.096 70.81 2003.30 0.092 71.39 2003.40 0.088 72.01 2003.50 0.084 72.69 2003.60 0.080 73.44 2003.70 0.076 74.27 2003.80 0.072 75.20 2003.90 0.068 76.23 2004.00 0.064 77.41 2004.10 0.060 78.74 2004.20 0.056 80.28 2004.30 0.051 82.07 2004.40 0.047 84.18 2004.50 0.043 86.68 2004.60 0.039 89.71 2004.70 0.035 93.43 2004.80 0.031 98.05 2004.90 0.028 103.88 2005.00 0.025 111.29 2005.10 0.022 120.66 2005.20 0.020 132.18 2005.30 0.019 145.45 2005.40 0.019 159.32 2005.50 0.021 172.27 2005.60 0.023 183.32 2005.70 0.025 192.23 2005.80 0.029 199.25 2005.90 0.032 204.79 2006.00 0.036 209.18 2006.10 0.040 212.72 2006.20 0.044 215.62 2006.30 0.048 218.02 2006.40 0.052 220.04 2006.50 0.057 221.76 2006.60 0.061 223.24 2006.70 0.065 224.53 2006.80 0.069 225.65 2006.90 0.074 226.65 2007.00 0.078 227.54 2007.10 0.082 228.34 2007.20 0.086 229.05 2007.30 0.091 229.71 2007.40 0.095 230.30 2007.50 0.099 230.84 2007.60 0.103 231.34 2007.70 0.107 231.80 2007.80 0.111 232.23 2007.90 0.115 232.62 2008.00 0.120 232.99 2008.10 0.124 233.34 2008.20 0.128 233.66 2008.30 0.132 233.96 2008.40 0.135 234.25 2008.50 0.139 234.52 2008.60 0.143 234.78 2008.70 0.147 235.02 2008.80 0.151 235.25 2008.90 0.155 235.47 2009.00 0.158 235.67 2009.10 0.162 235.87 2009.20 0.166 236.06 2009.30 0.169 236.24 2009.40 0.173 236.42 2009.50 0.177 236.58 2009.60 0.180 236.74 2009.70 0.184 236.90 2009.80 0.187 237.05 2009.90 0.191 237.19 2010.00 0.194 237.33 2010.10 0.197 237.46 2010.20 0.201 237.59 2010.30 0.204 237.71 2010.40 0.207 237.83 2010.50 0.211 237.95 2010.60 0.214 238.06 2010.70 0.217 238.17 2010.80 0.220 238.28 2010.90 0.223 238.38 2011.00 0.226 238.48 2011.10 0.229 238.58 2011.20 0.232 238.68 2011.30 0.235 238.77 2011.40 0.238 238.86 2011.50 0.241 238.95 2011.60 0.244 239.04 2011.70 0.247 239.12 2011.80 0.249 239.21 2011.90 0.252 239.29 2012.00 0.255 239.37 2012.10 0.258 239.44 2012.20 0.260 239.52 2012.30 0.263 239.59 2012.40 0.265 239.67 2012.50 0.268 239.74 2012.60 0.271 239.81 2012.70 0.273 239.88 2012.80 0.276 239.95 2012.90 0.278 240.01 2013.00 0.280 240.08 2013.10 0.283 240.14 2013.20 0.285 240.21 2013.30 0.287 240.27 2013.40 0.290 240.33 2013.50 0.292 240.39 2013.60 0.294 240.45 2013.70 0.296 240.51 2013.80 0.298 240.56 2013.90 0.301 240.62 2014.00 0.303 240.68 2014.10 0.305 240.73 2014.20 0.307 240.79 2014.30 0.309 240.84 2014.40 0.311 240.89 2014.50 0.313 240.95 2014.60 0.315 241.00 2014.70 0.316 241.05 2014.80 0.318 241.10 2014.90 0.320 241.15 2015.00 0.322 241.20 2015.10 0.324 241.25 2015.20 0.325 241.30 2015.30 0.327 241.34 2015.40 0.329 241.39 2015.50 0.330 241.44 2015.60 0.332 241.49 2015.70 0.334 241.53 2015.80 0.335 241.58 2015.90 0.337 241.62 2016.00 0.338 241.67 2016.10 0.340 241.71 2016.20 0.341 241.76 2016.30 0.343 241.80 2016.40 0.344 241.84 2016.50 0.346 241.88 2016.60 0.347 241.93 2016.70 0.348 241.97 2016.80 0.350 242.01 2016.90 0.351 242.05 2017.00 0.352 242.09 2017.10 0.353 242.14 2017.20 0.355 242.18 2017.30 0.356 242.22 2017.40 0.357 242.26 2017.50 0.358 242.30 2017.60 0.359 242.34 2017.70 0.360 242.38 2017.80 0.361 242.41 2017.90 0.362 242.45 2018.00 0.363 242.49 2018.10 0.364 242.53 2018.20 0.365 242.57 2018.30 0.366 242.61 2018.40 0.367 242.64 2018.50 0.368 242.68 2018.60 0.369 242.72 2018.70 0.370 242.76 2018.80 0.371 242.79 2018.90 0.371 242.83 2019.00 0.372 242.87 2019.10 0.373 242.91 2019.20 0.374 242.94 2019.30 0.374 242.98 2019.40 0.375 243.01 2019.50 0.376 243.05 2019.60 0.376 243.09 2019.70 0.377 243.12 2019.80 0.377 243.16 2019.90 0.378 243.19 2020.00 0.379 243.23 2020.10 0.379 243.27 2020.20 0.380 243.30 2020.30 0.380 243.34 2020.40 0.381 243.37 2020.50 0.381 243.41 2020.60 0.381 243.44 2020.70 0.382 243.48 2020.80 0.382 243.51 2020.90 0.383 243.55 2021.00 0.383 243.58 2021.10 0.383 243.62 2021.20 0.383 243.65 2021.30 0.384 243.69 2021.40 0.384 243.72 2021.50 0.384 243.75 2021.60 0.384 243.79 2021.70 0.385 243.82 2021.80 0.385 243.86 2021.90 0.385 243.89 2022.00 0.385 243.93 2022.10 0.385 243.96 2022.20 0.385 244.00 2022.30 0.385 244.03 2022.40 0.385 244.06 2022.50 0.385 244.10 2022.60 0.385 244.13 2022.70 0.385 244.17 2022.80 0.385 244.20 2022.90 0.385 244.24 2023.00 0.385 244.27 2023.10 0.385 244.30 2023.20 0.385 244.34 2023.30 0.385 244.37 2023.40 0.385 244.41 2023.50 0.385 244.44 2023.60 0.384 244.48 2023.70 0.384 244.51 2023.80 0.384 244.55 2023.90 0.384 244.58 2024.00 0.383 244.61 2024.10 0.383 244.65 2024.20 0.383 244.68 2024.30 0.383 244.72 2024.40 0.382 244.75 2024.50 0.382 244.79 2024.60 0.382 244.82 2024.70 0.381 244.86 2024.80 0.381 244.89 2024.90 0.380 244.93 2025.00 0.380 244.96 2025.10 0.379 245.00 2025.20 0.379 245.04 2025.30 0.378 245.07 2025.40 0.378 245.11 2025.50 0.377 245.14 2025.60 0.377 245.18 2025.70 0.376 245.21 2025.80 0.376 245.25 2025.90 0.375 245.29 2026.00 0.375 245.32 2026.10 0.374 245.36 2026.20 0.373 245.40 2026.30 0.373 245.43 2026.40 0.372 245.47 2026.50 0.371 245.51 2026.60 0.370 245.54 2026.70 0.370 245.58 2026.80 0.369 245.62 2026.90 0.368 245.65 2027.00 0.367 245.69 2027.10 0.367 245.73 2027.20 0.366 245.77 2027.30 0.365 245.81 2027.40 0.364 245.84 2027.50 0.363 245.88 2027.60 0.362 245.92 2027.70 0.362 245.96 2027.80 0.361 246.00 2027.90 0.360 246.04 2028.00 0.359 246.08 2028.10 0.358 246.12 2028.20 0.357 246.16 2028.30 0.356 246.20 2028.40 0.355 246.24 2028.50 0.354 246.28 2028.60 0.353 246.32 2028.70 0.352 246.36 2028.80 0.351 246.40 2028.90 0.350 246.44 2029.00 0.348 246.49 2029.10 0.347 246.53 2029.20 0.346 246.57 2029.30 0.345 246.61 2029.40 0.344 246.66 2029.50 0.343 246.70 2029.60 0.342 246.74 2029.70 0.340 246.79 2029.80 0.339 246.83 2029.90 0.338 246.88 2030.00 0.337 246.92 2030.10 0.335 246.97 2030.20 0.334 247.01 2030.30 0.333 247.06 2030.40 0.331 247.10 2030.50 0.330 247.15 2030.60 0.329 247.20 2030.70 0.327 247.24 2030.80 0.326 247.29 2030.90 0.325 247.34 2031.00 0.323 247.39 2031.10 0.322 247.44 2031.20 0.320 247.49 2031.30 0.319 247.54 2031.40 0.318 247.59 2031.50 0.316 247.64 2031.60 0.315 247.69 2031.70 0.313 247.74 2031.80 0.312 247.79 2031.90 0.310 247.85 2032.00 0.309 247.90 2032.10 0.307 247.95 2032.20 0.305 248.01 2032.30 0.304 248.06 2032.40 0.302 248.12 2032.50 0.301 248.17 2032.60 0.299 248.23 2032.70 0.297 248.29 2032.80 0.296 248.35 2032.90 0.294 248.40 2033.00 0.292 248.46 2033.10 0.291 248.52 2033.20 0.289 248.58 2033.30 0.287 248.64 2033.40 0.286 248.71 2033.50 0.284 248.77 2033.60 0.282 248.83 2033.70 0.280 248.90 2033.80 0.279 248.96 2033.90 0.277 249.03 2034.00 0.275 249.10 2034.10 0.273 249.16 2034.20 0.271 249.23 2034.30 0.270 249.30 2034.40 0.268 249.37 2034.50 0.266 249.44 2034.60 0.264 249.52 2034.70 0.262 249.59 2034.80 0.260 249.67 2034.90 0.258 249.74 2035.00 0.256 249.82 2035.10 0.254 249.90 2035.20 0.252 249.98 2035.30 0.250 250.06 2035.40 0.248 250.14 2035.50 0.246 250.22 2035.60 0.245 250.31 2035.70 0.242 250.39 2035.80 0.240 250.48 2035.90 0.238 250.57 2036.00 0.236 250.66 2036.10 0.234 250.75 2036.20 0.232 250.84 2036.30 0.230 250.94 2036.40 0.228 251.04 2036.50 0.226 251.14 2036.60 0.224 251.24 2036.70 0.222 251.34 2036.80 0.220 251.44 2036.90 0.217 251.55 2037.00 0.215 251.66 2037.10 0.213 251.77 2037.20 0.211 251.88 2037.30 0.209 252.00 2037.40 0.207 252.12 2037.50 0.204 252.24 2037.60 0.202 252.36 2037.70 0.200 252.49 2037.80 0.198 252.62 2037.90 0.195 252.75 2038.00 0.193 252.88 2038.10 0.191 253.02 2038.20 0.189 253.16 2038.30 0.186 253.31 2038.40 0.184 253.46 2038.50 0.182 253.61 2038.60 0.179 253.76 2038.70 0.177 253.93 2038.80 0.175 254.09 2038.90 0.172 254.26 2039.00 0.170 254.43 2039.10 0.168 254.61 2039.20 0.165 254.79 2039.30 0.163 254.98 2039.40 0.161 255.18 2039.50 0.158 255.38 2039.60 0.156 255.59 2039.70 0.153 255.80 2039.80 0.151 256.02 2039.90 0.149 256.25 2040.00 0.146 256.48 2040.10 0.144 256.72 2040.20 0.141 256.97 2040.30 0.139 257.23 2040.40 0.136 257.50 2040.50 0.134 257.78 2040.60 0.131 258.07 2040.70 0.129 258.37 2040.80 0.127 258.68 2040.90 0.124 259.01 2041.00 0.122 259.35 2041.10 0.119 259.70 2041.20 0.117 260.07 2041.30 0.114 260.45 2041.40 0.112 260.85 2041.50 0.109 261.27 2041.60 0.107 261.71 2041.70 0.104 262.16 2041.80 0.102 262.65 2041.90 0.099 263.15 2042.00 0.097 263.69 2042.10 0.094 264.25 2042.20 0.092 264.84 2042.30 0.089 265.46 2042.40 0.087 266.12 2042.50 0.084 266.82 2042.60 0.082 267.57 2042.70 0.079 268.36 2042.80 0.077 269.20 2042.90 0.074 270.09 2043.00 0.072 271.05 2043.10 0.069 272.07 2043.20 0.067 273.17 2043.30 0.065 274.35 2043.40 0.062 275.61 2043.50 0.060 276.98 2043.60 0.058 278.46 2043.70 0.055 280.06 2043.80 0.053 281.79 2043.90 0.051 283.68 2044.00 0.049 285.73 2044.10 0.047 287.96 2044.20 0.045 290.39 2044.30 0.043 293.05 2044.40 0.041 295.94 2044.50 0.039 299.09 2044.60 0.038 302.52 2044.70 0.036 306.22 2044.80 0.035 310.21 2044.90 0.034 314.47 2045.00 0.033 318.99 2045.10 0.032 323.72 2045.20 0.032 328.62 2045.30 0.032 333.62 2045.40 0.032 338.65 2045.50 0.032 343.63 2045.60 0.033 348.50 2045.70 0.033 353.18 2045.80 0.034 357.64 2045.90 0.035 1.83 2046.00 0.037 5.75 2046.10 0.038 9.38 2046.20 0.040 12.74 2046.30 0.042 15.82 2046.40 0.043 18.66 2046.50 0.045 21.26 2046.60 0.047 23.64 2046.70 0.049 25.83 2046.80 0.051 27.84 2046.90 0.054 29.69 2047.00 0.056 31.39 2047.10 0.058 32.96 2047.20 0.060 34.42 2047.30 0.063 35.77 2047.40 0.065 37.02 2047.50 0.067 38.18 2047.60 0.070 39.26 2047.70 0.072 40.28 2047.80 0.075 41.23 2047.90 0.077 42.11 2048.00 0.079 42.95 2048.10 0.082 43.73 2048.20 0.084 44.48 2048.30 0.087 45.17 2048.40 0.089 45.84 2048.50 0.091 46.46 2048.60 0.094 47.06 2048.70 0.096 47.62 2048.80 0.099 48.16 2048.90 0.101 48.67 2049.00 0.103 49.16 2049.10 0.106 49.63 2049.20 0.108 50.08 2049.30 0.110 50.50 2049.40 0.113 50.91 2049.50 0.115 51.31 2049.60 0.117 51.69 2049.70 0.119 52.05 2049.80 0.122 52.40 2049.90 0.124 52.74 2050.00 0.126 53.07 2050.10 0.128 53.38 2050.20 0.130 53.69 2050.30 0.132 53.99 2050.40 0.134 54.27 2050.50 0.136 54.55 2050.60 0.138 54.82 2050.70 0.140 55.08 2050.80 0.142 55.34 2050.90 0.144 55.59 2051.00 0.146 55.83 2051.10 0.148 56.06 2051.20 0.150 56.30 2051.30 0.151 56.52 2051.40 0.153 56.74 2051.50 0.155 56.96 2051.60 0.156 57.17 2051.70 0.158 57.37 2051.80 0.159 57.58 2051.90 0.161 57.78 2052.00 0.162 57.97 2052.10 0.163 58.17
| Double Star Calculator: | Version 1.2 ($Rev: 2397 $) |
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| Report created: |
2026-06-25 16:08:01 |