Double Star Calculator - Orbit

Orbital Elements for RST3950

WDS:	RST3950	WDS ID/Discoverer
P:	26.230	Orbital period (years)
a:	0.157	Semi-major axis (arcseconds)
i:	157.9	Inclination (degrees)
Ω:	88.7	Longitude of ascending node (degrees)
T:	2000.660	Epoch of periastron passage (year)
e:	0.808	Eccentricity
ω:	210.7	Longitude of periastron (degrees)
Start-Year:	2011.885	Year
End-Year:	2038.115	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for RST3950
Position:	162816.06-161243.6	Epoch-2000 right ascension and declination
WDS-ID:	16283-1613	WDS designation
Discoverer Code:	RST3950	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	148394	HD catalog number
Hipparcos number:	80677	Hipparcos catalog number
V1:	7.60	Magnitude of the primary
V2:	8.78	Magnitude of the secondary
Equinox:		Equinox
Date:		Date of last observation
Orbit grade:	3	Orbit grade, ranging from : 1 = Definitive 2 = Good 3 = Reliable 4 = Preliminary 5 = Indeterminate
Flags:	n	Flags
Ephemerides:		Ephemerides
Code:	Tok2024c	Reference

Double Star Orbit for RST3950

WDS 6th Orbit including measures of RST3950

-- 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 RST3950

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.041   303.70
--------------------------
2011.88    0.276    64.40
2011.98    0.276    64.16
2012.08    0.277    63.92
2012.18    0.277    63.68
2012.28    0.277    63.44
2012.38    0.277    63.20
2012.48    0.278    62.96
2012.58    0.278    62.72
2012.68    0.278    62.48
2012.78    0.278    62.24
2012.88    0.278    62.00
2012.98    0.278    61.76
2013.08    0.279    61.52
2013.18    0.279    61.29
2013.28    0.279    61.05
2013.38    0.279    60.81
2013.48    0.279    60.57
2013.58    0.279    60.34
2013.68    0.279    60.10
2013.78    0.279    59.86
2013.88    0.278    59.62
2013.98    0.278    59.38
2014.08    0.278    59.14
2014.18    0.278    58.91
2014.28    0.278    58.67
2014.38    0.278    58.43
2014.48    0.277    58.19
2014.58    0.277    57.95
2014.68    0.277    57.71
2014.78    0.277    57.47
2014.88    0.276    57.22
2014.98    0.276    56.98
2015.08    0.276    56.74
2015.18    0.275    56.50
2015.28    0.275    56.25
2015.38    0.274    56.01
2015.48    0.274    55.76
2015.58    0.274    55.52
2015.68    0.273    55.27
2015.78    0.273    55.02
2015.88    0.272    54.77
2015.98    0.271    54.52
2016.08    0.271    54.27
2016.18    0.270    54.02
2016.28    0.270    53.76
2016.38    0.269    53.51
2016.48    0.268    53.25
2016.58    0.268    53.00
2016.68    0.267    52.74
2016.78    0.266    52.48
2016.88    0.265    52.22
2016.98    0.265    51.95
2017.08    0.264    51.69
2017.18    0.263    51.42
2017.28    0.262    51.15
2017.38    0.261    50.88
2017.48    0.260    50.61
2017.58    0.259    50.34
2017.68    0.258    50.06
2017.78    0.257    49.78
2017.88    0.256    49.50
2017.98    0.255    49.22
2018.08    0.254    48.94
2018.18    0.253    48.65
2018.28    0.252    48.36
2018.38    0.251    48.07
2018.48    0.250    47.78
2018.58    0.249    47.48
2018.68    0.247    47.18
2018.78    0.246    46.87
2018.88    0.245    46.57
2018.98    0.244    46.26
2019.08    0.242    45.95
2019.18    0.241    45.63
2019.28    0.240    45.31
2019.38    0.238    44.99
2019.48    0.237    44.66
2019.58    0.235    44.33
2019.68    0.234    43.99
2019.78    0.232    43.65
2019.88    0.231    43.31
2019.98    0.229    42.96
2020.08    0.228    42.61
2020.18    0.226    42.25
2020.28    0.224    41.88
2020.38    0.223    41.51
2020.48    0.221    41.14
2020.58    0.219    40.76
2020.68    0.218    40.37
2020.78    0.216    39.98
2020.88    0.214    39.58
2020.98    0.212    39.17
2021.08    0.210    38.76
2021.18    0.208    38.33
2021.28    0.206    37.90
2021.38    0.204    37.47
2021.48    0.202    37.02
2021.58    0.200    36.56
2021.68    0.198    36.10
2021.78    0.196    35.62
2021.88    0.194    35.14
2021.98    0.192    34.64
2022.08    0.189    34.13
2022.18    0.187    33.61
2022.28    0.185    33.08
2022.38    0.182    32.53
2022.48    0.180    31.97
2022.58    0.178    31.39
2022.68    0.175    30.79
2022.78    0.173    30.18
2022.88    0.170    29.55
2022.98    0.167    28.91
2023.08    0.165    28.24
2023.18    0.162    27.55
2023.28    0.159    26.83
2023.38    0.157    26.09
2023.48    0.154    25.32
2023.58    0.151    24.53
2023.68    0.148    23.70
2023.78    0.145    22.84
2023.88    0.142    21.94
2023.98    0.139    21.00
2024.08    0.136    20.02
2024.18    0.132    18.99
2024.28    0.129    17.92
2024.38    0.126    16.78
2024.48    0.122    15.58
2024.58    0.119    14.31
2024.68    0.115    12.97
2024.78    0.112    11.54
2024.88    0.108    10.02
2024.98    0.105     8.39
2025.08    0.101     6.63
2025.18    0.097     4.74
2025.28    0.093     2.69
2025.38    0.089     0.46
2025.48    0.085   358.01
2025.58    0.081   355.31
2025.68    0.076   352.31
2025.78    0.072   348.96
2025.88    0.068   345.18
2025.98    0.063   340.88
2026.08    0.059   335.92
2026.18    0.054   330.14
2026.28    0.050   323.33
2026.38    0.045   315.19
2026.48    0.041   305.35
2026.58    0.037   293.34
2026.68    0.034   278.69
2026.78    0.031   261.10
2026.88    0.030   240.94
2026.98    0.030   219.71
2027.08    0.031   199.71
2027.18    0.035   182.66
2027.28    0.039   168.95
2027.38    0.044   158.13
2027.48    0.049   149.54
2027.58    0.054   142.61
2027.68    0.060   136.91
2027.78    0.065   132.14
2027.88    0.070   128.08
2027.98    0.075   124.57
2028.08    0.080   121.50
2028.18    0.085   118.78
2028.28    0.090   116.35
2028.38    0.094   114.15
2028.48    0.099   112.16
2028.58    0.103   110.34
2028.68    0.107   108.67
2028.78    0.111   107.12
2028.88    0.115   105.68
2028.98    0.119   104.34
2029.08    0.123   103.08
2029.18    0.127   101.90
2029.28    0.131   100.78
2029.38    0.134    99.73
2029.48    0.138    98.73
2029.58    0.141    97.78
2029.68    0.144    96.87
2029.78    0.148    96.01
2029.88    0.151    95.18
2029.98    0.154    94.39
2030.08    0.157    93.63
2030.18    0.160    92.89
2030.28    0.163    92.19
2030.38    0.166    91.51
2030.48    0.169    90.85
2030.58    0.172    90.21
2030.68    0.175    89.60
2030.78    0.177    89.00
2030.88    0.180    88.42
2030.98    0.182    87.86
2031.08    0.185    87.31
2031.18    0.187    86.78
2031.28    0.190    86.26
2031.38    0.192    85.75
2031.48    0.195    85.26
2031.58    0.197    84.78
2031.68    0.199    84.30
2031.78    0.201    83.84
2031.88    0.204    83.39
2031.98    0.206    82.95
2032.08    0.208    82.52
2032.18    0.210    82.10
2032.28    0.212    81.68
2032.38    0.214    81.27
2032.48    0.216    80.87
2032.58    0.218    80.48
2032.68    0.220    80.09
2032.78    0.221    79.71
2032.88    0.223    79.34
2032.98    0.225    78.97
2033.08    0.227    78.61
2033.18    0.228    78.25
2033.28    0.230    77.90
2033.38    0.232    77.55
2033.48    0.233    77.21
2033.58    0.235    76.87
2033.68    0.236    76.54
2033.78    0.238    76.21
2033.88    0.239    75.89
2033.98    0.241    75.57
2034.08    0.242    75.25
2034.18    0.243    74.94
2034.28    0.245    74.63
2034.38    0.246    74.32
2034.48    0.247    74.02
2034.58    0.249    73.72
2034.68    0.250    73.42
2034.78    0.251    73.12
2034.88    0.252    72.83
2034.98    0.253    72.54
2035.08    0.254    72.26
2035.18    0.256    71.97
2035.28    0.257    71.69
2035.38    0.258    71.41
2035.48    0.259    71.13
2035.58    0.260    70.86
2035.68    0.261    70.59
2035.78    0.261    70.31
2035.88    0.262    70.05
2035.98    0.263    69.78
2036.08    0.264    69.51
2036.18    0.265    69.25
2036.28    0.266    68.99
2036.38    0.266    68.73
2036.48    0.267    68.47
2036.58    0.268    68.21
2036.68    0.269    67.95
2036.78    0.269    67.70
2036.88    0.270    67.44
2036.98    0.271    67.19
2037.08    0.271    66.94
2037.18    0.272    66.69
2037.28    0.272    66.44
2037.38    0.273    66.19
2037.48    0.273    65.94
2037.58    0.274    65.69
2037.68    0.274    65.45
2037.78    0.275    65.20
2037.88    0.275    64.96
2037.98    0.276    64.72
2038.08    0.276    64.47

Disclaimer

This result is provided without warranty. For all terms, see the Full Disclaimer. Copyright (C) 2025. 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 - Orbital Elements makes use of the Washington Double Star Sixth Catalog of Orbits of Visual Binary Stars, maintained at the U.S. Naval Observatory.

Report Information

Double Star Calculator:		Version 1.2 ($Rev: 2397 $)
Report created:		2026-06-25 17:27:03