Double Star Calculator - Orbit

Orbital Elements for MLR347

WDS:	MLR347	WDS ID/Discoverer
P:	20.190	Orbital period (years)
a:	0.131	Semi-major axis (arcseconds)
i:	158.3	Inclination (degrees)
Ω:	44.5	Longitude of ascending node (degrees)
T:	1979.620	Epoch of periastron passage (year)
e:	0.505	Eccentricity
ω:	23.5	Longitude of periastron (degrees)
Start-Year:	2014.905	Year
End-Year:	2035.095	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for MLR347
Position:	152547.59+843014.1	Epoch-2000 right ascension and declination
WDS-ID:	15258+8430	WDS designation
Discoverer Code:	MLR347	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	140625	HD catalog number
Hipparcos number:	75529	Hipparcos catalog number
V1:	9.52	Magnitude of the primary
V2:	9.91	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2008	Date of last observation
Orbit grade:	3	Orbit grade, ranging from : 1 = Definitive 2 = Good 3 = Reliable 4 = Preliminary 5 = Indeterminate
Flags:		Flags
Ephemerides:		Ephemerides
Code:	USN2017b	Reference

Double Star Orbit for MLR347

WDS 6th Orbit including measures of MLR347

-- 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 MLR347

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.179   226.91
--------------------------
2014.90    0.152   163.82
2015.00    0.150   162.75
2015.10    0.149   161.65
2015.20    0.147   160.52
2015.30    0.145   159.38
2015.40    0.144   158.20
2015.50    0.142   156.99
2015.60    0.140   155.76
2015.70    0.138   154.49
2015.80    0.136   153.19
2015.90    0.135   151.86
2016.00    0.133   150.49
2016.10    0.131   149.07
2016.20    0.129   147.62
2016.30    0.127   146.13
2016.40    0.125   144.59
2016.50    0.123   142.99
2016.60    0.121   141.35
2016.70    0.119   139.66
2016.80    0.117   137.90
2016.90    0.115   136.09
2017.00    0.113   134.21
2017.10    0.111   132.26
2017.20    0.109   130.23
2017.30    0.107   128.13
2017.40    0.105   125.95
2017.50    0.103   123.68
2017.60    0.101   121.32
2017.70    0.099   118.86
2017.80    0.097   116.30
2017.90    0.095   113.63
2018.00    0.093   110.84
2018.10    0.091   107.93
2018.20    0.089   104.88
2018.30    0.087   101.70
2018.40    0.085    98.38
2018.50    0.083    94.91
2018.60    0.081    91.28
2018.70    0.080    87.48
2018.80    0.078    83.51
2018.90    0.076    79.37
2019.00    0.075    75.05
2019.10    0.073    70.54
2019.20    0.072    65.85
2019.30    0.070    60.97
2019.40    0.069    55.91
2019.50    0.068    50.67
2019.60    0.067    45.25
2019.70    0.066    39.68
2019.80    0.065    33.97
2019.90    0.065    28.13
2020.00    0.064    22.20
2020.10    0.064    16.21
2020.20    0.064    10.18
2020.30    0.064     4.16
2020.40    0.064   358.20
2020.50    0.065   352.32
2020.60    0.066   346.56
2020.70    0.067   340.97
2020.80    0.068   335.56
2020.90    0.069   330.35
2021.00    0.071   325.38
2021.10    0.073   320.63
2021.20    0.075   316.12
2021.30    0.077   311.84
2021.40    0.079   307.79
2021.50    0.081   303.96
2021.60    0.084   300.34
2021.70    0.086   296.92
2021.80    0.088   293.68
2021.90    0.091   290.62
2022.00    0.093   287.73
2022.10    0.096   284.98
2022.20    0.098   282.37
2022.30    0.101   279.90
2022.40    0.103   277.55
2022.50    0.106   275.30
2022.60    0.108   273.17
2022.70    0.111   271.12
2022.80    0.113   269.17
2022.90    0.116   267.30
2023.00    0.118   265.50
2023.10    0.120   263.78
2023.20    0.123   262.12
2023.30    0.125   260.52
2023.40    0.127   258.98
2023.50    0.130   257.50
2023.60    0.132   256.06
2023.70    0.134   254.67
2023.80    0.136   253.33
2023.90    0.138   252.02
2024.00    0.140   250.76
2024.10    0.142   249.53
2024.20    0.144   248.33
2024.30    0.146   247.17
2024.40    0.148   246.03
2024.50    0.150   244.92
2024.60    0.152   243.85
2024.70    0.153   242.79
2024.80    0.155   241.76
2024.90    0.157   240.75
2025.00    0.158   239.76
2025.10    0.160   238.80
2025.20    0.162   237.85
2025.30    0.163   236.92
2025.40    0.165   236.01
2025.50    0.166   235.11
2025.60    0.168   234.23
2025.70    0.169   233.36
2025.80    0.170   232.51
2025.90    0.172   231.67
2026.00    0.173   230.84
2026.10    0.174   230.03
2026.20    0.175   229.22
2026.30    0.176   228.43
2026.40    0.178   227.64
2026.50    0.179   226.87
2026.60    0.180   226.11
2026.70    0.181   225.35
2026.80    0.182   224.60
2026.90    0.183   223.86
2027.00    0.183   223.13
2027.10    0.184   222.40
2027.20    0.185   221.69
2027.30    0.186   220.97
2027.40    0.187   220.27
2027.50    0.187   219.57
2027.60    0.188   218.87
2027.70    0.189   218.18
2027.80    0.189   217.49
2027.90    0.190   216.81
2028.00    0.191   216.13
2028.10    0.191   215.46
2028.20    0.192   214.79
2028.30    0.192   214.13
2028.40    0.193   213.46
2028.50    0.193   212.80
2028.60    0.193   212.14
2028.70    0.194   211.49
2028.80    0.194   210.83
2028.90    0.194   210.18
2029.00    0.194   209.53
2029.10    0.195   208.88
2029.20    0.195   208.24
2029.30    0.195   207.59
2029.40    0.195   206.95
2029.50    0.195   206.30
2029.60    0.195   205.66
2029.70    0.195   205.01
2029.80    0.195   204.37
2029.90    0.195   203.73
2030.00    0.195   203.08
2030.10    0.195   202.44
2030.20    0.195   201.79
2030.30    0.195   201.14
2030.40    0.194   200.50
2030.50    0.194   199.85
2030.60    0.194   199.20
2030.70    0.194   198.54
2030.80    0.193   197.89
2030.90    0.193   197.23
2031.00    0.193   196.57
2031.10    0.192   195.91
2031.20    0.192   195.24
2031.30    0.191   194.57
2031.40    0.191   193.90
2031.50    0.190   193.23
2031.60    0.190   192.55
2031.70    0.189   191.86
2031.80    0.189   191.18
2031.90    0.188   190.48
2032.00    0.187   189.79
2032.10    0.187   189.08
2032.20    0.186   188.37
2032.30    0.185   187.66
2032.40    0.184   186.94
2032.50    0.183   186.21
2032.60    0.183   185.48
2032.70    0.182   184.74
2032.80    0.181   183.99
2032.90    0.180   183.24
2033.00    0.179   182.48
2033.10    0.178   181.70
2033.20    0.177   180.92
2033.30    0.176   180.13
2033.40    0.175   179.33
2033.50    0.174   178.52
2033.60    0.172   177.70
2033.70    0.171   176.87
2033.80    0.170   176.03
2033.90    0.169   175.17
2034.00    0.167   174.30
2034.10    0.166   173.42
2034.20    0.165   172.53
2034.30    0.164   171.62
2034.40    0.162   170.69
2034.50    0.161   169.75
2034.60    0.159   168.79
2034.70    0.158   167.81
2034.80    0.156   166.82
2034.90    0.155   165.81
2035.00    0.153   164.77

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 17:15:18