| WDS: | A2554 | WDS ID/Discoverer |
| P: | 44.430 | Orbital period (years) |
| a: | 0.2102 | Semi-major axis (arcseconds) |
| i: | 161.4 | Inclination (degrees) |
| Ω: | 311.8 | Longitude of ascending node (degrees) |
| T: | 2021.750 | Epoch of periastron passage (year) |
| e: | 0.4859 | Eccentricity |
| ω: | 0.8 | Longitude of periastron (degrees) |
| Start-Year: | 2002.785 | Year |
| End-Year: | 2047.215 | Year |
| Epoch: | 2026.5 | Besselian Epoch |
Further data from the WDS Sixth Catalog of Orbits for A2554 |
||
| Position: | 085351.95+014928.0 | Epoch-2000 right ascension and declination |
| WDS-ID: | 08539+0149 | WDS designation |
| Discoverer Code: | A2554 | Discover designation and components |
| ADS number: | 7074 | Aitken Double Star catalog |
| HD number: | 76050 | HD catalog number |
| Hipparcos number: | 43676 | Hipparcos catalog number |
| V1: | 7.44 | Magnitude of the primary |
| V2: | 9.64 | Magnitude of the secondary |
| Equinox: | Equinox | |
| Date: | 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: | Msn2023 | 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 0.156 218.04 -------------------------- 2002.79 0.307 121.04 2002.88 0.306 120.73 2002.98 0.306 120.41 2003.08 0.306 120.09 2003.18 0.305 119.78 2003.28 0.305 119.46 2003.38 0.305 119.14 2003.48 0.304 118.82 2003.58 0.304 118.50 2003.68 0.303 118.18 2003.78 0.303 117.85 2003.88 0.303 117.53 2003.98 0.302 117.21 2004.08 0.302 116.88 2004.18 0.301 116.55 2004.28 0.301 116.23 2004.38 0.300 115.90 2004.48 0.300 115.57 2004.58 0.299 115.24 2004.68 0.299 114.91 2004.78 0.298 114.57 2004.88 0.297 114.24 2004.98 0.297 113.90 2005.08 0.296 113.56 2005.18 0.296 113.23 2005.28 0.295 112.89 2005.38 0.295 112.55 2005.48 0.294 112.20 2005.58 0.293 111.86 2005.68 0.293 111.51 2005.78 0.292 111.17 2005.88 0.291 110.82 2005.98 0.291 110.47 2006.08 0.290 110.12 2006.18 0.289 109.76 2006.28 0.289 109.41 2006.38 0.288 109.05 2006.48 0.287 108.69 2006.58 0.287 108.33 2006.68 0.286 107.97 2006.78 0.285 107.61 2006.88 0.284 107.24 2006.98 0.283 106.87 2007.08 0.283 106.50 2007.18 0.282 106.13 2007.28 0.281 105.76 2007.38 0.280 105.38 2007.48 0.279 105.00 2007.58 0.279 104.62 2007.68 0.278 104.24 2007.78 0.277 103.85 2007.88 0.276 103.46 2007.98 0.275 103.07 2008.08 0.274 102.68 2008.18 0.273 102.29 2008.28 0.272 101.89 2008.38 0.272 101.49 2008.48 0.271 101.08 2008.58 0.270 100.68 2008.68 0.269 100.27 2008.78 0.268 99.86 2008.88 0.267 99.44 2008.98 0.266 99.02 2009.08 0.265 98.60 2009.18 0.264 98.18 2009.28 0.263 97.75 2009.38 0.262 97.32 2009.48 0.261 96.88 2009.58 0.260 96.44 2009.68 0.259 96.00 2009.78 0.258 95.56 2009.88 0.256 95.11 2009.98 0.255 94.66 2010.08 0.254 94.20 2010.18 0.253 93.74 2010.28 0.252 93.27 2010.38 0.251 92.80 2010.48 0.250 92.33 2010.58 0.249 91.85 2010.68 0.247 91.37 2010.78 0.246 90.88 2010.88 0.245 90.39 2010.98 0.244 89.90 2011.08 0.243 89.39 2011.18 0.241 88.89 2011.28 0.240 88.38 2011.38 0.239 87.86 2011.48 0.238 87.34 2011.58 0.236 86.81 2011.68 0.235 86.28 2011.78 0.234 85.74 2011.88 0.233 85.19 2011.98 0.231 84.64 2012.08 0.230 84.08 2012.18 0.229 83.52 2012.28 0.227 82.95 2012.38 0.226 82.37 2012.48 0.225 81.78 2012.58 0.223 81.19 2012.68 0.222 80.59 2012.78 0.220 79.99 2012.88 0.219 79.37 2012.98 0.218 78.75 2013.08 0.216 78.12 2013.18 0.215 77.48 2013.28 0.213 76.84 2013.38 0.212 76.18 2013.48 0.211 75.52 2013.58 0.209 74.84 2013.68 0.208 74.16 2013.78 0.206 73.47 2013.88 0.205 72.76 2013.98 0.203 72.05 2014.08 0.202 71.32 2014.18 0.200 70.59 2014.28 0.199 69.84 2014.38 0.197 69.09 2014.48 0.196 68.32 2014.58 0.194 67.54 2014.68 0.192 66.74 2014.78 0.191 65.93 2014.88 0.189 65.11 2014.98 0.188 64.28 2015.08 0.186 63.43 2015.18 0.185 62.57 2015.28 0.183 61.69 2015.38 0.182 60.80 2015.48 0.180 59.89 2015.58 0.178 58.97 2015.68 0.177 58.03 2015.78 0.175 57.07 2015.88 0.174 56.10 2015.98 0.172 55.11 2016.08 0.170 54.09 2016.18 0.169 53.06 2016.28 0.167 52.01 2016.38 0.166 50.94 2016.48 0.164 49.85 2016.58 0.162 48.74 2016.68 0.161 47.60 2016.78 0.159 46.44 2016.88 0.158 45.26 2016.98 0.156 44.06 2017.08 0.155 42.83 2017.18 0.153 41.57 2017.28 0.151 40.29 2017.38 0.150 38.98 2017.48 0.148 37.65 2017.58 0.147 36.29 2017.68 0.145 34.90 2017.78 0.144 33.47 2017.88 0.142 32.02 2017.98 0.141 30.54 2018.08 0.139 29.03 2018.18 0.138 27.48 2018.28 0.136 25.91 2018.38 0.135 24.30 2018.48 0.134 22.65 2018.58 0.132 20.97 2018.68 0.131 19.26 2018.78 0.130 17.51 2018.88 0.128 15.73 2018.98 0.127 13.91 2019.08 0.126 12.05 2019.18 0.125 10.16 2019.28 0.123 8.23 2019.38 0.122 6.26 2019.48 0.121 4.26 2019.58 0.120 2.22 2019.68 0.119 0.15 2019.78 0.118 358.04 2019.88 0.117 355.89 2019.98 0.116 353.71 2020.08 0.115 351.50 2020.18 0.115 349.25 2020.28 0.114 346.98 2020.38 0.113 344.67 2020.48 0.112 342.33 2020.58 0.112 339.97 2020.68 0.111 337.58 2020.78 0.111 335.17 2020.88 0.110 332.73 2020.98 0.110 330.28 2021.08 0.109 327.80 2021.18 0.109 325.31 2021.28 0.109 322.81 2021.38 0.108 320.29 2021.48 0.108 317.76 2021.58 0.108 315.23 2021.68 0.108 312.69 2021.78 0.108 310.15 2021.88 0.108 307.61 2021.98 0.108 305.08 2022.08 0.108 302.55 2022.18 0.109 300.03 2022.28 0.109 297.51 2022.38 0.109 295.01 2022.48 0.109 292.53 2022.58 0.110 290.06 2022.68 0.110 287.62 2022.78 0.111 285.19 2022.88 0.111 282.79 2022.98 0.112 280.41 2023.08 0.113 278.06 2023.18 0.113 275.74 2023.28 0.114 273.45 2023.38 0.115 271.18 2023.48 0.116 268.95 2023.58 0.117 266.76 2023.68 0.118 264.60 2023.78 0.119 262.47 2023.88 0.120 260.38 2023.98 0.121 258.32 2024.08 0.122 256.31 2024.18 0.123 254.32 2024.28 0.124 252.38 2024.38 0.125 250.47 2024.48 0.126 248.60 2024.58 0.128 246.76 2024.68 0.129 244.96 2024.78 0.130 243.20 2024.88 0.132 241.47 2024.98 0.133 239.78 2025.08 0.134 238.12 2025.18 0.136 236.50 2025.28 0.137 234.91 2025.38 0.139 233.35 2025.48 0.140 231.83 2025.58 0.142 230.33 2025.68 0.143 228.87 2025.78 0.145 227.44 2025.88 0.146 226.04 2025.98 0.148 224.67 2026.08 0.149 223.32 2026.18 0.151 222.01 2026.28 0.152 220.72 2026.38 0.154 219.46 2026.48 0.156 218.22 2026.58 0.157 217.01 2026.68 0.159 215.82 2026.78 0.160 214.66 2026.88 0.162 213.52 2026.98 0.164 212.40 2027.08 0.165 211.30 2027.18 0.167 210.22 2027.28 0.168 209.17 2027.38 0.170 208.13 2027.48 0.172 207.12 2027.58 0.173 206.12 2027.68 0.175 205.14 2027.78 0.176 204.18 2027.88 0.178 203.24 2027.98 0.180 202.31 2028.08 0.181 201.40 2028.18 0.183 200.50 2028.28 0.184 199.62 2028.38 0.186 198.76 2028.48 0.188 197.91 2028.58 0.189 197.07 2028.68 0.191 196.25 2028.78 0.192 195.44 2028.88 0.194 194.65 2028.98 0.195 193.86 2029.08 0.197 193.09 2029.18 0.198 192.33 2029.28 0.200 191.59 2029.38 0.201 190.85 2029.48 0.203 190.12 2029.58 0.204 189.41 2029.68 0.206 188.71 2029.78 0.207 188.01 2029.88 0.209 187.33 2029.98 0.210 186.65 2030.08 0.212 185.99 2030.18 0.213 185.33 2030.28 0.215 184.68 2030.38 0.216 184.04 2030.48 0.218 183.41 2030.58 0.219 182.79 2030.68 0.220 182.18 2030.78 0.222 181.57 2030.88 0.223 180.97 2030.98 0.224 180.38 2031.08 0.226 179.79 2031.18 0.227 179.21 2031.28 0.229 178.64 2031.38 0.230 178.08 2031.48 0.231 177.52 2031.58 0.233 176.97 2031.68 0.234 176.42 2031.78 0.235 175.88 2031.88 0.236 175.35 2031.98 0.238 174.82 2032.08 0.239 174.30 2032.18 0.240 173.78 2032.28 0.241 173.27 2032.38 0.243 172.76 2032.48 0.244 172.26 2032.58 0.245 171.77 2032.68 0.246 171.28 2032.78 0.247 170.79 2032.88 0.249 170.31 2032.98 0.250 169.83 2033.08 0.251 169.36 2033.18 0.252 168.89 2033.28 0.253 168.42 2033.38 0.254 167.96 2033.48 0.255 167.50 2033.58 0.256 167.05 2033.68 0.258 166.60 2033.78 0.259 166.16 2033.88 0.260 165.72 2033.98 0.261 165.28 2034.08 0.262 164.84 2034.18 0.263 164.41 2034.28 0.264 163.98 2034.38 0.265 163.56 2034.48 0.266 163.14 2034.58 0.267 162.72 2034.68 0.268 162.31 2034.78 0.269 161.89 2034.88 0.270 161.49 2034.98 0.271 161.08 2035.08 0.272 160.68 2035.18 0.273 160.28 2035.28 0.273 159.88 2035.38 0.274 159.48 2035.48 0.275 159.09 2035.58 0.276 158.70 2035.68 0.277 158.31 2035.78 0.278 157.93 2035.88 0.279 157.54 2035.98 0.280 157.16 2036.08 0.280 156.78 2036.18 0.281 156.41 2036.28 0.282 156.03 2036.38 0.283 155.66 2036.48 0.284 155.29 2036.58 0.284 154.93 2036.68 0.285 154.56 2036.78 0.286 154.20 2036.88 0.287 153.83 2036.98 0.287 153.47 2037.08 0.288 153.12 2037.18 0.289 152.76 2037.28 0.289 152.40 2037.38 0.290 152.05 2037.48 0.291 151.70 2037.58 0.291 151.35 2037.68 0.292 151.00 2037.78 0.293 150.65 2037.88 0.293 150.31 2037.98 0.294 149.97 2038.08 0.295 149.62 2038.18 0.295 149.28 2038.28 0.296 148.94 2038.38 0.296 148.60 2038.48 0.297 148.27 2038.58 0.298 147.93 2038.68 0.298 147.60 2038.78 0.299 147.26 2038.88 0.299 146.93 2038.98 0.300 146.60 2039.08 0.300 146.27 2039.18 0.301 145.94 2039.28 0.301 145.62 2039.38 0.302 145.29 2039.48 0.302 144.96 2039.58 0.303 144.64 2039.68 0.303 144.32 2039.78 0.303 143.99 2039.88 0.304 143.67 2039.98 0.304 143.35 2040.08 0.305 143.03 2040.18 0.305 142.71 2040.28 0.305 142.40 2040.38 0.306 142.08 2040.48 0.306 141.76 2040.58 0.307 141.44 2040.68 0.307 141.13 2040.78 0.307 140.82 2040.88 0.308 140.50 2040.98 0.308 140.19 2041.08 0.308 139.88 2041.18 0.308 139.56 2041.28 0.309 139.25 2041.38 0.309 138.94 2041.48 0.309 138.63 2041.58 0.309 138.32 2041.68 0.310 138.01 2041.78 0.310 137.70 2041.88 0.310 137.39 2041.98 0.310 137.09 2042.08 0.311 136.78 2042.18 0.311 136.47 2042.28 0.311 136.16 2042.38 0.311 135.86 2042.48 0.311 135.55 2042.58 0.311 135.25 2042.68 0.312 134.94 2042.78 0.312 134.63 2042.88 0.312 134.33 2042.98 0.312 134.02 2043.08 0.312 133.72 2043.18 0.312 133.41 2043.28 0.312 133.11 2043.38 0.312 132.81 2043.48 0.312 132.50 2043.58 0.312 132.20 2043.68 0.312 131.89 2043.78 0.312 131.59 2043.88 0.312 131.28 2043.98 0.312 130.98 2044.08 0.312 130.68 2044.18 0.312 130.37 2044.28 0.312 130.07 2044.38 0.312 129.76 2044.48 0.312 129.46 2044.58 0.312 129.16 2044.68 0.312 128.85 2044.78 0.312 128.55 2044.88 0.312 128.24 2044.98 0.312 127.94 2045.08 0.312 127.63 2045.18 0.312 127.33 2045.28 0.311 127.02 2045.38 0.311 126.71 2045.48 0.311 126.41 2045.58 0.311 126.10 2045.68 0.311 125.80 2045.78 0.311 125.49 2045.88 0.310 125.18 2045.98 0.310 124.87 2046.08 0.310 124.56 2046.18 0.310 124.26 2046.28 0.310 123.95 2046.38 0.309 123.64 2046.48 0.309 123.33 2046.58 0.309 123.01 2046.68 0.308 122.70 2046.78 0.308 122.39 2046.88 0.308 122.08 2046.98 0.308 121.77 2047.08 0.307 121.45 2047.18 0.307 121.14
| Double Star Calculator: | Version 1.2 ($Rev: 2397 $) |
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| Report created: |
2026-06-25 16:12:09 |