| WDS: | B1871 | WDS ID/Discoverer |
| P: | 34.710 | Orbital period (years) |
| a: | 0.172 | Semi-major axis (arcseconds) |
| i: | 80.5 | Inclination (degrees) |
| Ω: | 103.0 | Longitude of ascending node (degrees) |
| T: | 1974.100 | Epoch of periastron passage (year) |
| e: | 0.001 | Eccentricity |
| ω: | 183.0 | Longitude of periastron (degrees) |
| Start-Year: | 2007.645 | Year |
| End-Year: | 2042.355 | Year |
| Epoch: | 2026.5 | Besselian Epoch |
Further data from the WDS Sixth Catalog of Orbits for B1871 |
||
| Position: | 175354.77-344509.8 | Epoch-2000 right ascension and declination |
| WDS-ID: | 17539-3445 | WDS designation |
| Discoverer Code: | B1871 | Discover designation and components |
| ADS number: | . | Aitken Double Star catalog |
| HD number: | 162724 | HD catalog number |
| Hipparcos number: | 87616 | Hipparcos catalog number |
| V1: | 6.5 | Magnitude of the primary |
| V2: | 7.3 | Magnitude of the secondary |
| Equinox: | 2000 | Equinox |
| Date: | Date of last observation | |
| Orbit grade: | 5 | Orbit grade, ranging from : 1 = Definitive 2 = Good 3 = Reliable 4 = Preliminary 5 = Indeterminate |
| Flags: | n | Flags |
| Ephemerides: | Ephemerides | |
| Code: | Zas2009 | 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 0.171 104.07 -------------------------- 2007.64 0.170 281.48 2007.74 0.170 281.66 2007.84 0.171 281.83 2007.94 0.171 282.01 2008.04 0.171 282.18 2008.14 0.171 282.35 2008.24 0.172 282.53 2008.34 0.172 282.70 2008.44 0.172 282.87 2008.54 0.172 283.04 2008.64 0.172 283.21 2008.74 0.172 283.38 2008.84 0.172 283.56 2008.94 0.171 283.73 2009.04 0.171 283.90 2009.14 0.171 284.07 2009.24 0.170 284.25 2009.34 0.170 284.42 2009.44 0.169 284.60 2009.54 0.169 284.78 2009.64 0.168 284.95 2009.74 0.168 285.13 2009.84 0.167 285.31 2009.94 0.166 285.50 2010.04 0.165 285.68 2010.14 0.165 285.87 2010.24 0.164 286.05 2010.34 0.163 286.24 2010.44 0.162 286.44 2010.54 0.161 286.63 2010.64 0.160 286.83 2010.74 0.158 287.03 2010.84 0.157 287.23 2010.94 0.156 287.44 2011.04 0.155 287.65 2011.14 0.153 287.86 2011.24 0.152 288.08 2011.34 0.150 288.30 2011.44 0.149 288.53 2011.54 0.147 288.76 2011.64 0.146 288.99 2011.74 0.144 289.23 2011.84 0.142 289.48 2011.94 0.141 289.73 2012.04 0.139 289.99 2012.14 0.137 290.26 2012.24 0.135 290.53 2012.34 0.133 290.81 2012.44 0.131 291.10 2012.54 0.129 291.40 2012.64 0.127 291.70 2012.74 0.125 292.02 2012.84 0.123 292.35 2012.94 0.121 292.69 2013.04 0.119 293.04 2013.14 0.117 293.40 2013.24 0.115 293.78 2013.34 0.112 294.17 2013.44 0.110 294.58 2013.54 0.108 295.01 2013.64 0.105 295.46 2013.74 0.103 295.92 2013.84 0.101 296.41 2013.94 0.098 296.93 2014.04 0.096 297.46 2014.14 0.093 298.03 2014.24 0.091 298.63 2014.34 0.088 299.27 2014.44 0.086 299.94 2014.54 0.083 300.65 2014.64 0.081 301.41 2014.74 0.078 302.21 2014.84 0.075 303.07 2014.94 0.073 304.00 2015.04 0.070 304.99 2015.14 0.068 306.06 2015.24 0.065 307.21 2015.34 0.062 308.46 2015.44 0.060 309.82 2015.54 0.057 311.30 2015.64 0.055 312.92 2015.74 0.052 314.70 2015.84 0.050 316.65 2015.94 0.047 318.80 2016.04 0.045 321.19 2016.14 0.043 323.83 2016.24 0.040 326.77 2016.34 0.038 330.04 2016.44 0.036 333.68 2016.54 0.035 337.71 2016.64 0.033 342.17 2016.74 0.031 347.07 2016.84 0.030 352.40 2016.94 0.029 358.11 2017.04 0.029 4.13 2017.14 0.028 10.35 2017.24 0.028 16.63 2017.34 0.029 22.82 2017.44 0.029 28.80 2017.54 0.030 34.45 2017.64 0.032 39.71 2017.74 0.033 44.54 2017.84 0.035 48.94 2017.94 0.037 52.91 2018.04 0.039 56.48 2018.14 0.041 59.70 2018.24 0.043 62.59 2018.34 0.045 65.19 2018.44 0.048 67.53 2018.54 0.050 69.65 2018.64 0.053 71.58 2018.74 0.055 73.33 2018.84 0.058 74.92 2018.94 0.060 76.38 2019.04 0.063 77.72 2019.14 0.065 78.95 2019.24 0.068 80.10 2019.34 0.071 81.15 2019.44 0.073 82.13 2019.54 0.076 83.05 2019.64 0.078 83.90 2019.74 0.081 84.70 2019.84 0.083 85.45 2019.94 0.086 86.15 2020.04 0.089 86.82 2020.14 0.091 87.44 2020.24 0.094 88.04 2020.34 0.096 88.60 2020.44 0.099 89.14 2020.54 0.101 89.65 2020.64 0.103 90.13 2020.74 0.106 90.59 2020.84 0.108 91.04 2020.94 0.110 91.46 2021.04 0.113 91.87 2021.14 0.115 92.26 2021.24 0.117 92.63 2021.34 0.119 93.00 2021.44 0.122 93.35 2021.54 0.124 93.68 2021.64 0.126 94.01 2021.74 0.128 94.32 2021.84 0.130 94.63 2021.94 0.132 94.92 2022.04 0.134 95.21 2022.14 0.136 95.49 2022.24 0.138 95.76 2022.34 0.139 96.03 2022.44 0.141 96.28 2022.54 0.143 96.53 2022.64 0.144 96.78 2022.74 0.146 97.02 2022.84 0.148 97.25 2022.94 0.149 97.48 2023.04 0.151 97.71 2023.14 0.152 97.93 2023.24 0.154 98.15 2023.34 0.155 98.36 2023.44 0.156 98.57 2023.54 0.158 98.77 2023.64 0.159 98.98 2023.74 0.160 99.18 2023.84 0.161 99.37 2023.94 0.162 99.57 2024.04 0.163 99.76 2024.14 0.164 99.95 2024.24 0.165 100.13 2024.34 0.166 100.32 2024.44 0.167 100.50 2024.54 0.167 100.68 2024.64 0.168 100.86 2024.74 0.169 101.04 2024.84 0.169 101.22 2024.94 0.170 101.40 2025.04 0.170 101.57 2025.14 0.171 101.75 2025.24 0.171 101.92 2025.34 0.171 102.09 2025.44 0.172 102.26 2025.54 0.172 102.44 2025.64 0.172 102.61 2025.74 0.172 102.78 2025.84 0.172 102.95 2025.94 0.172 103.12 2026.04 0.172 103.29 2026.14 0.172 103.46 2026.24 0.172 103.63 2026.34 0.172 103.80 2026.44 0.171 103.98 2026.54 0.171 104.15 2026.64 0.171 104.32 2026.74 0.170 104.50 2026.84 0.170 104.67 2026.94 0.169 104.85 2027.04 0.168 105.03 2027.14 0.168 105.21 2027.24 0.167 105.39 2027.34 0.166 105.57 2027.44 0.165 105.75 2027.54 0.165 105.94 2027.64 0.164 106.13 2027.74 0.163 106.32 2027.84 0.162 106.51 2027.94 0.161 106.71 2028.04 0.159 106.90 2028.14 0.158 107.10 2028.24 0.157 107.31 2028.34 0.156 107.51 2028.44 0.154 107.73 2028.54 0.153 107.94 2028.64 0.152 108.16 2028.74 0.150 108.38 2028.84 0.149 108.61 2028.94 0.147 108.84 2029.04 0.145 109.07 2029.14 0.144 109.32 2029.24 0.142 109.56 2029.34 0.140 109.82 2029.44 0.139 110.08 2029.54 0.137 110.35 2029.64 0.135 110.62 2029.74 0.133 110.90 2029.84 0.131 111.19 2029.94 0.129 111.49 2030.04 0.127 111.80 2030.14 0.125 112.12 2030.24 0.123 112.45 2030.34 0.121 112.79 2030.44 0.119 113.14 2030.54 0.116 113.51 2030.64 0.114 113.89 2030.74 0.112 114.29 2030.84 0.110 114.70 2030.94 0.107 115.13 2031.04 0.105 115.59 2031.14 0.102 116.06 2031.24 0.100 116.55 2031.34 0.098 117.07 2031.44 0.095 117.62 2031.54 0.093 118.19 2031.64 0.090 118.80 2031.74 0.088 119.44 2031.84 0.085 120.12 2031.94 0.082 120.84 2032.04 0.080 121.61 2032.14 0.077 122.43 2032.24 0.075 123.30 2032.34 0.072 124.24 2032.44 0.070 125.25 2032.54 0.067 126.34 2032.64 0.064 127.51 2032.74 0.062 128.79 2032.84 0.059 130.17 2032.94 0.057 131.68 2033.04 0.054 133.33 2033.14 0.052 135.15 2033.24 0.049 137.14 2033.34 0.047 139.35 2033.44 0.044 141.79 2033.54 0.042 144.50 2033.64 0.040 147.51 2033.74 0.038 150.86 2033.84 0.036 154.58 2033.94 0.034 158.71 2034.04 0.033 163.27 2034.14 0.031 168.27 2034.24 0.030 173.68 2034.34 0.029 179.47 2034.44 0.029 185.55 2034.54 0.028 191.79 2034.64 0.028 198.06 2034.74 0.029 204.21 2034.84 0.030 210.13 2034.94 0.031 215.69 2035.04 0.032 220.86 2035.14 0.034 225.59 2035.24 0.035 229.88 2035.34 0.037 233.76 2035.44 0.039 237.25 2035.54 0.041 240.39 2035.64 0.044 243.21 2035.74 0.046 245.75 2035.84 0.048 248.05 2035.94 0.051 250.12 2036.04 0.053 252.00 2036.14 0.056 253.71 2036.24 0.058 255.28 2036.34 0.061 256.71 2036.44 0.063 258.02 2036.54 0.066 259.24 2036.64 0.069 260.36 2036.74 0.071 261.39 2036.84 0.074 262.36 2036.94 0.076 263.26 2037.04 0.079 264.10 2037.14 0.081 264.89 2037.24 0.084 265.63 2037.34 0.087 266.32 2037.44 0.089 266.98 2037.54 0.092 267.60 2037.64 0.094 268.19 2037.74 0.097 268.74 2037.84 0.099 269.27 2037.94 0.101 269.78 2038.04 0.104 270.26 2038.14 0.106 270.71 2038.24 0.109 271.15 2038.34 0.111 271.57 2038.44 0.113 271.98 2038.54 0.115 272.36 2038.64 0.118 272.74 2038.74 0.120 273.10 2038.84 0.122 273.44 2038.94 0.124 273.78 2039.04 0.126 274.10 2039.14 0.128 274.41 2039.24 0.130 274.72 2039.34 0.132 275.01 2039.44 0.134 275.30 2039.54 0.136 275.57 2039.64 0.138 275.84 2039.74 0.140 276.11 2039.84 0.141 276.36 2039.94 0.143 276.61 2040.04 0.145 276.86 2040.14 0.146 277.10 2040.24 0.148 277.33 2040.34 0.150 277.56 2040.44 0.151 277.78 2040.54 0.152 278.00 2040.64 0.154 278.22 2040.74 0.155 278.43 2040.84 0.156 278.64 2040.94 0.158 278.84 2041.04 0.159 279.05 2041.14 0.160 279.25 2041.24 0.161 279.44 2041.34 0.162 279.64 2041.44 0.163 279.83 2041.54 0.164 280.02 2041.64 0.165 280.20 2041.74 0.166 280.39 2041.84 0.167 280.57 2041.94 0.167 280.75 2042.04 0.168 280.93 2042.14 0.169 281.11 2042.24 0.169 281.29 2042.34 0.170 281.47
| Double Star Calculator: | Version 1.2 ($Rev: 2397 $) |
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| Report created: |
2026-06-25 17:44:20 |