Double Star Calculator - Orbit

Orbital Elements for MTG1AB

WDS:	MTG1AB	WDS ID/Discoverer
P:	16.190	Orbital period (years)
a:	0.2874	Semi-major axis (arcseconds)
i:	71.98	Inclination (degrees)
Ω:	2.28	Longitude of ascending node (degrees)
T:	2025.001	Epoch of periastron passage (year)
e:	0.8302	Eccentricity
ω:	44.44	Longitude of periastron (degrees)
Start-Year:	2016.905	Year
End-Year:	2033.095	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for MTG1AB
Position:	071111.44+432958.1	Epoch-2000 right ascension and declination
WDS-ID:	07112+4330	WDS designation
Discoverer Code:	MTG1AB	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	.	HD catalog number
Hipparcos number:	.	Hipparcos catalog number
V1:	5.3 k	Magnitude of the primary
V2:	5.4 k	Magnitude of the secondary
Equinox:		Equinox
Date:	2012	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:	Dup2017	Reference

Double Star Orbit for MTG1AB

WDS 6th Orbit including measures of MTG1AB

-- 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 MTG1AB

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.246   183.73
--------------------------
2016.90    0.392   199.15
2017.00    0.390   199.36
2017.10    0.388   199.57
2017.20    0.386   199.78
2017.30    0.384   199.99
2017.40    0.381   200.21
2017.50    0.379   200.43
2017.60    0.376   200.65
2017.70    0.373   200.88
2017.80    0.370   201.11
2017.90    0.367   201.34
2018.00    0.364   201.58
2018.10    0.361   201.82
2018.20    0.358   202.06
2018.30    0.355   202.31
2018.40    0.352   202.57
2018.50    0.348   202.82
2018.60    0.345   203.09
2018.70    0.341   203.36
2018.80    0.337   203.63
2018.90    0.334   203.91
2019.00    0.330   204.20
2019.10    0.326   204.50
2019.20    0.322   204.80
2019.30    0.318   205.11
2019.40    0.314   205.43
2019.50    0.309   205.75
2019.60    0.305   206.09
2019.70    0.301   206.43
2019.80    0.296   206.79
2019.90    0.291   207.16
2020.00    0.287   207.54
2020.10    0.282   207.93
2020.20    0.277   208.33
2020.30    0.272   208.75
2020.40    0.267   209.19
2020.50    0.262   209.64
2020.60    0.257   210.11
2020.70    0.252   210.60
2020.80    0.246   211.11
2020.90    0.241   211.65
2021.00    0.235   212.21
2021.10    0.230   212.80
2021.20    0.224   213.41
2021.30    0.218   214.06
2021.40    0.212   214.74
2021.50    0.206   215.47
2021.60    0.200   216.23
2021.70    0.194   217.05
2021.80    0.188   217.91
2021.90    0.182   218.84
2022.00    0.176   219.83
2022.10    0.169   220.89
2022.20    0.163   222.04
2022.30    0.156   223.29
2022.40    0.150   224.64
2022.50    0.143   226.11
2022.60    0.137   227.73
2022.70    0.130   229.51
2022.80    0.124   231.48
2022.90    0.117   233.67
2023.00    0.110   236.12
2023.10    0.104   238.88
2023.20    0.098   242.01
2023.30    0.091   245.56
2023.40    0.085   249.62
2023.50    0.080   254.27
2023.60    0.075   259.60
2023.70    0.070   265.69
2023.80    0.066   272.59
2023.90    0.063   280.29
2024.00    0.060   288.69
2024.10    0.059   297.57
2024.20    0.059   306.64
2024.30    0.060   315.60
2024.40    0.062   324.20
2024.50    0.063   332.31
2024.60    0.065   339.96
2024.70    0.065   347.35
2024.80    0.063   354.98
2024.90    0.054     4.12
2025.00    0.036    20.10
2025.10    0.017    78.34
2025.20    0.033   146.33
2025.30    0.059   162.53
2025.40    0.083   169.00
2025.50    0.105   172.65
2025.60    0.124   175.08
2025.70    0.142   176.87
2025.80    0.159   178.27
2025.90    0.174   179.42
2026.00    0.188   180.39
2026.10    0.201   181.22
2026.20    0.214   181.96
2026.30    0.225   182.62
2026.40    0.236   183.21
2026.50    0.247   183.75
2026.60    0.256   184.25
2026.70    0.266   184.72
2026.80    0.274   185.15
2026.90    0.283   185.56
2027.00    0.291   185.95
2027.10    0.298   186.31
2027.20    0.305   186.66
2027.30    0.312   186.99
2027.40    0.319   187.31
2027.50    0.325   187.62
2027.60    0.331   187.91
2027.70    0.336   188.20
2027.80    0.342   188.48
2027.90    0.347   188.74
2028.00    0.351   189.00
2028.10    0.356   189.26
2028.20    0.360   189.50
2028.30    0.365   189.74
2028.40    0.369   189.98
2028.50    0.372   190.21
2028.60    0.376   190.44
2028.70    0.379   190.66
2028.80    0.382   190.88
2028.90    0.385   191.09
2029.00    0.388   191.30
2029.10    0.391   191.51
2029.20    0.393   191.72
2029.30    0.396   191.92
2029.40    0.398   192.12
2029.50    0.400   192.32
2029.60    0.402   192.52
2029.70    0.404   192.71
2029.80    0.405   192.91
2029.90    0.407   193.10
2030.00    0.408   193.29
2030.10    0.409   193.48
2030.20    0.410   193.67
2030.30    0.411   193.86
2030.40    0.412   194.04
2030.50    0.413   194.23
2030.60    0.413   194.42
2030.70    0.414   194.60
2030.80    0.414   194.79
2030.90    0.414   194.97
2031.00    0.414   195.15
2031.10    0.414   195.34
2031.20    0.414   195.52
2031.30    0.414   195.71
2031.40    0.414   195.89
2031.50    0.413   196.08
2031.60    0.413   196.26
2031.70    0.412   196.45
2031.80    0.411   196.64
2031.90    0.410   196.83
2032.00    0.409   197.01
2032.10    0.408   197.20
2032.20    0.407   197.39
2032.30    0.406   197.59
2032.40    0.404   197.78
2032.50    0.403   197.97
2032.60    0.401   198.17
2032.70    0.400   198.37
2032.80    0.398   198.57
2032.90    0.396   198.77
2033.00    0.394   198.97

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 15:55:19