☰Double Star Calculator - Results

WARNING: Invalid or missing GAIA IDs

-- Image of STF-2084-taken with Equinox 120/900 APO --


WDS record for STF 2084
wds_id                       : 16413+3136
discoverer_code              : STF
discoverer_number            : 2084
discoverer_components        : 
date_first                   : 1826
date_last                    : 2023
num_of_obs                   : 863
pa_first                     : 23
pa_last                      : 88
sep_first                    : 0.9
sep_last                     : 1.5
mag_primary                  : 2.95
mag_secondary                : 5.4
spectral_type                : G1IV
primary_proper_motion_RA     : -463
primary_proper_motion_DEC    : 345
secondary_proper_motion_RA   : 
secondary_proper_motion_DEC  : 
dm_number                    : +31 2884
notes                        : NO
precise_coordinate           : 164117.16+313609.8
                             : 16:41:17.16 +31:36:09.8

WDS Notes:
----------
N: Notes found in WDSNOT MEMO of WDS
O: Orbit described in WDSNOT MEMO and has entry in Orbit Catalog


Orbital Elements for STF 2084
WDS: STF 2084 WDS ID/Discoverer
P: 34.464 Orbital period (years)
a: 1.32834 Semi-major axis (arcseconds)
i: 131.6 Inclination (degrees)
Ω: 50.601 Longitude of ascending node (degrees)
T: 1933.352 Epoch of periastron passage (year)
e: 0.46342 Eccentricity
ω: 113.177 Argument of periastron (degrees)
Start-Year: 2007.768 Year
End-Year: 2042.232 Year
Epoch: 2016.0 Besselian Epoch
 
Further data from the WDS Sixth Catalog of Orbits for STF 2084
Position: 164117.16+313609.8 Epoch-2000 right ascension and declination
WDS-ID: 16413+3136 WDS designation
Discoverer Code: STF 2084 Discover designation and components
ADS number: 10157 Aitken Double Star catalog
HD number: 150680 HD catalog number
Hipparcos number: 81693 Hipparcos catalog number
V1: 2.95 Magnitude of the primary
V2: 5.40 Magnitude of the secondary
Equinox: Equinox
Date: 2015 Date of last observation
Orbit grade: 1 Orbit grade, ranging from :
1 = Definitive
2 = Good
3 = Reliable
4 = Preliminary
5 = Indeterminate
8 = Interferometric
9 = Astrometric
Flags: n Flags
Ephemerides: Ephemerides
Code: Izm2019 Reference

Double Star Orbit for STF 2084



WDS 6th Orbit including measures of STF 2084

-- Image from the USNO WDS 6th Orbit Catalog (see Acknowledgements) --


Legend:
Green plus signs:Visual (micrometric) measures
Violet asterisks:Photographic measures
Blue symbols:Various interferometric techniques
Dot-dash line:Indicates the line of nodes

Ephemeris of STF 2084
Click to expand/collapse ephemeris: 
Year       Sep[“]   PA[°]
---------------------------------------------
2016.00    1.265   129.11
--------------------------
2007.70    1.068   197.59
2007.80    1.071   196.64
2007.90    1.073   195.70
2008.00    1.075   194.76
2008.10    1.078   193.82
2008.20    1.080   192.89
2008.30    1.082   191.96
2008.40    1.084   191.04
2008.50    1.085   190.12
2008.60    1.087   189.20
2008.70    1.089   188.28
2008.80    1.091   187.37
2008.90    1.092   186.46
2009.00    1.094   185.55
2009.10    1.095   184.65
2009.20    1.097   183.74
2009.30    1.098   182.84
2009.40    1.100   181.95
2009.50    1.101   181.05
2009.60    1.103   180.16
2009.70    1.104   179.27
2009.80    1.106   178.38
2009.90    1.107   177.49
2010.00    1.108   176.61
2010.10    1.110   175.73
2010.20    1.111   174.85
2010.30    1.113   173.97
2010.40    1.114   173.10
2010.50    1.116   172.23
2010.60    1.117   171.36
2010.70    1.119   170.49
2010.80    1.120   169.62
2010.90    1.122   168.76
2011.00    1.124   167.90
2011.10    1.125   167.04
2011.20    1.127   166.19
2011.30    1.129   165.34
2011.40    1.131   164.49
2011.50    1.132   163.64
2011.60    1.134   162.79
2011.70    1.136   161.95
2011.80    1.138   161.11
2011.90    1.140   160.28
2012.00    1.142   159.45
2012.10    1.144   158.62
2012.20    1.146   157.79
2012.30    1.149   156.97
2012.40    1.151   156.15
2012.50    1.153   155.33
2012.60    1.156   154.51
2012.70    1.158   153.70
2012.80    1.160   152.90
2012.90    1.163   152.09
2013.00    1.166   151.29
2013.10    1.168   150.50
2013.20    1.171   149.70
2013.30    1.174   148.92
2013.40    1.176   148.13
2013.50    1.179   147.35
2013.60    1.182   146.57
2013.70    1.185   145.80
2013.80    1.188   145.03
2013.90    1.191   144.26
2014.00    1.194   143.50
2014.10    1.197   142.74
2014.20    1.200   141.98
2014.30    1.204   141.23
2014.40    1.207   140.49
2014.50    1.210   139.75
2014.60    1.214   139.01
2014.70    1.217   138.27
2014.80    1.221   137.54
2014.90    1.224   136.82
2015.00    1.228   136.10
2015.10    1.231   135.38
2015.20    1.235   134.67
2015.30    1.239   133.96
2015.40    1.242   133.25
2015.50    1.246   132.55
2015.60    1.250   131.86
2015.70    1.254   131.16
2015.80    1.258   130.48
2015.90    1.262   129.79
2016.00    1.265   129.11
2016.10    1.269   128.44
2016.20    1.273   127.77
2016.30    1.277   127.10
2016.40    1.281   126.44
2016.50    1.286   125.78
2016.60    1.290   125.13
2016.70    1.294   124.48
2016.80    1.298   123.83
2016.90    1.302   123.19
2017.00    1.306   122.55
2017.10    1.310   121.92
2017.20    1.314   121.29
2017.30    1.319   120.66
2017.40    1.323   120.04
2017.50    1.327   119.42
2017.60    1.331   118.81
2017.70    1.336   118.20
2017.80    1.340   117.59
2017.90    1.344   116.99
2018.00    1.348   116.39
2018.10    1.353   115.80
2018.20    1.357   115.21
2018.30    1.361   114.62
2018.40    1.365   114.04
2018.50    1.370   113.46
2018.60    1.374   112.88
2018.70    1.378   112.31
2018.80    1.382   111.74
2018.90    1.386   111.17
2019.00    1.391   110.61
2019.10    1.395   110.05
2019.20    1.399   109.49
2019.30    1.403   108.94
2019.40    1.407   108.39
2019.50    1.411   107.85
2019.60    1.415   107.30
2019.70    1.419   106.76
2019.80    1.423   106.23
2019.90    1.427   105.69
2020.00    1.431   105.16
2020.10    1.435   104.64
2020.20    1.439   104.11
2020.30    1.443   103.59
2020.40    1.447   103.07
2020.50    1.451   102.55
2020.60    1.455   102.04
2020.70    1.458   101.53
2020.80    1.462   101.02
2020.90    1.466   100.51
2021.00    1.469   100.01
2021.10    1.473    99.51
2021.20    1.476    99.01
2021.30    1.480    98.51
2021.40    1.483    98.02
2021.50    1.487    97.53
2021.60    1.490    97.04
2021.70    1.493    96.55
2021.80    1.496    96.06
2021.90    1.499    95.58
2022.00    1.503    95.10
2022.10    1.506    94.62
2022.20    1.508    94.14
2022.30    1.511    93.67
2022.40    1.514    93.19
2022.50    1.517    92.72
2022.60    1.520    92.25
2022.70    1.522    91.78
2022.80    1.525    91.32
2022.90    1.527    90.85
2023.00    1.530    90.39
2023.10    1.532    89.92
2023.20    1.534    89.46
2023.30    1.536    89.00
2023.40    1.538    88.54
2023.50    1.540    88.08
2023.60    1.542    87.63
2023.70    1.544    87.17
2023.80    1.546    86.72
2023.90    1.547    86.27
2024.00    1.549    85.81
2024.10    1.550    85.36
2024.20    1.552    84.91
2024.30    1.553    84.46
2024.40    1.554    84.01
2024.50    1.555    83.56
2024.60    1.556    83.12
2024.70    1.557    82.67
2024.80    1.558    82.22
2024.90    1.558    81.77
2025.00    1.559    81.33
2025.10    1.559    80.88
2025.20    1.559    80.44
2025.30    1.560    79.99
2025.40    1.560    79.54
2025.50    1.560    79.10
2025.60    1.559    78.65
2025.70    1.559    78.21
2025.80    1.559    77.76
2025.90    1.558    77.31
2026.00    1.557    76.87
2026.10    1.556    76.42
2026.20    1.555    75.97
2026.30    1.554    75.52
2026.40    1.553    75.07
2026.50    1.551    74.62
2026.60    1.550    74.17
2026.70    1.548    73.72
2026.80    1.546    73.27
2026.90    1.544    72.81
2027.00    1.542    72.36
2027.10    1.540    71.90
2027.20    1.537    71.44
2027.30    1.535    70.98
2027.40    1.532    70.52
2027.50    1.529    70.06
2027.60    1.525    69.59
2027.70    1.522    69.13
2027.80    1.519    68.66
2027.90    1.515    68.19
2028.00    1.511    67.71
2028.10    1.507    67.24
2028.20    1.502    66.76
2028.30    1.498    66.28
2028.40    1.493    65.79
2028.50    1.488    65.30
2028.60    1.483    64.81
2028.70    1.478    64.32
2028.80    1.473    63.82
2028.90    1.467    63.32
2029.00    1.461    62.81
2029.10    1.455    62.30
2029.20    1.448    61.79
2029.30    1.442    61.27
2029.40    1.435    60.74
2029.50    1.428    60.21
2029.60    1.420    59.68
2029.70    1.413    59.14
2029.80    1.405    58.59
2029.90    1.397    58.04
2030.00    1.389    57.48
2030.10    1.380    56.91
2030.20    1.371    56.34
2030.30    1.362    55.76
2030.40    1.353    55.17
2030.50    1.343    54.58
2030.60    1.333    53.97
2030.70    1.323    53.36
2030.80    1.312    52.73
2030.90    1.302    52.10
2031.00    1.291    51.45
2031.10    1.279    50.79
2031.20    1.267    50.12
2031.30    1.255    49.44
2031.40    1.243    48.75
2031.50    1.230    48.04
2031.60    1.217    47.32
2031.70    1.204    46.58
2031.80    1.191    45.82
2031.90    1.177    45.05
2032.00    1.162    44.25
2032.10    1.148    43.44
2032.20    1.133    42.61
2032.30    1.117    41.75
2032.40    1.102    40.87
2032.50    1.086    39.96
2032.60    1.070    39.03
2032.70    1.053    38.07
2032.80    1.036    37.07
2032.90    1.019    36.04
2033.00    1.001    34.98
2033.10    0.983    33.88
2033.20    0.965    32.73
2033.30    0.946    31.55
2033.40    0.927    30.31
2033.50    0.908    29.02
2033.60    0.889    27.68
2033.70    0.869    26.27
2033.80    0.849    24.80
2033.90    0.829    23.26
2034.00    0.809    21.64
2034.10    0.788    19.94
2034.20    0.768    18.15
2034.30    0.747    16.26
2034.40    0.727    14.26
2034.50    0.706    12.15
2034.60    0.686     9.91
2034.70    0.666     7.53
2034.80    0.646     5.01
2034.90    0.627     2.34
2035.00    0.608   359.49
2035.10    0.590   356.47
2035.20    0.573   353.27
2035.30    0.557   349.87
2035.40    0.542   346.28
2035.50    0.528   342.49
2035.60    0.516   338.51
2035.70    0.506   334.36
2035.80    0.497   330.05
2035.90    0.491   325.60
2036.00    0.486   321.04
2036.10    0.484   316.43
2036.20    0.483   311.78
2036.30    0.485   307.15
2036.40    0.489   302.58
2036.50    0.495   298.11
2036.60    0.503   293.75
2036.70    0.513   289.55
2036.80    0.524   285.52
2036.90    0.537   281.66
2037.00    0.551   277.99
2037.10    0.565   274.50
2037.20    0.581   271.20
2037.30    0.597   268.07
2037.40    0.614   265.11
2037.50    0.630   262.31
2037.60    0.648   259.65
2037.70    0.665   257.13
2037.80    0.682   254.74
2037.90    0.699   252.46
2038.00    0.716   250.30
2038.10    0.732   248.23
2038.20    0.748   246.25
2038.30    0.764   244.35
2038.40    0.780   242.53
2038.50    0.795   240.78
2038.60    0.809   239.10
2038.70    0.823   237.47
2038.80    0.837   235.89
2038.90    0.850   234.37
2039.00    0.863   232.89
2039.10    0.875   231.46
2039.20    0.887   230.06
2039.30    0.898   228.70
2039.40    0.909   227.37
2039.50    0.919   226.07
2039.60    0.929   224.80
2039.70    0.938   223.55
2039.80    0.947   222.33
2039.90    0.956   221.14
2040.00    0.964   219.96
2040.10    0.972   218.80
2040.20    0.979   217.66
2040.30    0.986   216.54
2040.40    0.993   215.43
2040.50    0.999   214.34
2040.60    1.005   213.26
2040.70    1.011   212.19
2040.80    1.016   211.14
2040.90    1.022   210.09
2041.00    1.026   209.06
2041.10    1.031   208.03
2041.20    1.036   207.02
2041.30    1.040   206.01
2041.40    1.044   205.01
2041.50    1.047   204.02
2041.60    1.051   203.03
2041.70    1.054   202.06
2041.80    1.058   201.08
2041.90    1.061   200.12
2042.00    1.064   199.16
2042.10    1.066   198.20
2042.20    1.069   197.25
2042.30    1.071   196.30




    Observation Date:  

Disclaimer
This result is provided without warranty. For all terms, see the Full Disclaimer. Copyright (C) 2026. Unless otherwise noted, all output generated by the Double Star Calculator including orbit diagrams, ephemerides, and analytical reports is licensed under CC BY 4.0.


Acknowledgements
The Double Star Calculator makes use of data from the European Space Agency (ESA) mission Gaia, processed by the Gaia Data Processing and Analysis Consortium (DPAC). Funding for the DPAC has been provided by national institutions, in particular the institutions participating in the Gaia Multilateral Agreement. Additionally, it incorporates data from the Washington Double Star Catalog, maintained at the U.S. Naval Observatory, and makes use of the Aladin Sky Atlas developed at CDS, Strasbourg Observatory, France. This research has made use of the SIMBAD database, operated at CDS, Strasbourg, France.


Report Information
Double Star Calculator:   Version 1.2 ($Rev: 2591 $)
Report created:   2026-09-09 08:37:33 +0200


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