Content-Type: text/html; charset=UTF-8 Double Star Calculator - Orbital Elements

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 18:40:39

Orbital Elements for MLR182AA,AB

WDS:	MLR182AA,AB	WDS ID/Discoverer
P:	39.720	Orbital period (years)
a:	0.233	Semi-major axis (arcseconds)
i:	124.7	Inclination (degrees)
Ω:	293.4	Longitude of ascending node (degrees)
T:	1995.560	Epoch of periastron passage (year)
e:	0.399	Eccentricity
ω:	45.2	Longitude of periastron (degrees)
Start-Year:	2006.0	Year
End-Year:	2044.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for MLR182AA,AB

Position:	164436.02+714525.0	Epoch-2000 right ascension and declination
WDS-ID:	16446+7145	WDS designation
Discoverer Code:	MLR182AA,AB	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	152027	HD catalog number
Hipparcos number:	81961	Hipparcos catalog number
V1:	9.15	Magnitude of the primary
V2:	10.21	Magnitude of the secondary
Equinox:		Equinox
Date:	2008	Date of last observation
Orbit grade:	4	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for MLR182AA,AB

WDS 6th Orbit including measures of MLR182AA,AB

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

Ephemeris of MLR182AA,AB

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.154     21.2
-------------------------
2006.0     0.273    113.3
2007.0     0.282    110.0
2008.0     0.289    106.9
2009.0     0.293    103.8
2010.0     0.294    100.9
2011.0     0.293     97.9
2012.0     0.290     94.9
2013.0     0.285     91.8
2014.0     0.278     88.5
2015.0     0.269     85.1
2016.0     0.259     81.4
2017.0     0.247     77.4
2018.0     0.235     73.0
2019.0     0.222     68.1
2020.0     0.209     62.5
2021.0     0.195     56.2
2022.0     0.183     49.0
2023.0     0.171     40.8
2024.0     0.162     31.5
2025.0     0.154     21.2
2026.0     0.150     10.0
2027.0     0.149    358.5
2028.0     0.151    347.0
2029.0     0.154    336.0
2030.0     0.159    325.5
2031.0     0.162    315.5
2032.0     0.161    305.7
2033.0     0.155    295.5
2034.0     0.141    283.9
2035.0     0.120    268.8
2036.0     0.098    246.9
2037.0     0.086    215.3
2038.0     0.096    182.9
2039.0     0.121    160.3
2040.0     0.151    146.1
2041.0     0.180    136.7
2042.0     0.206    129.7
2043.0     0.229    124.3

Disclaimer

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.