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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 17:03:40

Orbital Elements for MCA16AA,AB

WDS:	MCA16AA,AB	WDS ID/Discoverer
P:	57.896	Orbital period (years)
a:	0.284	Semi-major axis (arcseconds)
i:	130.7	Inclination (degrees)
Ω:	4.1	Longitude of ascending node (degrees)
T:	2037.956	Epoch of periastron passage (year)
e:	0.357	Eccentricity
ω:	142.2	Longitude of periastron (degrees)
Start-Year:	1997.0	Year
End-Year:	2053.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for MCA16AA,AB

Position:	044214.70+225725.1	Epoch-2000 right ascension and declination
WDS-ID:	04422+2257	WDS designation
Discoverer Code:	MCA16AA,AB	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	29763	HD catalog number
Hipparcos number:	21881	Hipparcos catalog number
V1:	4.33	Magnitude of the primary
V2:	6.97	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2005	Date of last observation
Orbit grade:	3	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for MCA16AA,AB

WDS 6th Orbit including measures of MCA16AA,AB

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

Ephemeris of MCA16AA,AB

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.291    349.6
-------------------------
1997.0     0.226     77.7
1998.0     0.235     71.9
1999.0     0.246     66.7
2000.0     0.256     61.8
2001.0     0.267     57.3
2002.0     0.278     53.2
2003.0     0.288     49.4
2004.0     0.298     45.8
2005.0     0.308     42.5
2006.0     0.318     39.4
2007.0     0.326     36.4
2008.0     0.334     33.6
2009.0     0.341     31.0
2010.0     0.347     28.4
2011.0     0.353     25.9
2012.0     0.357     23.5
2013.0     0.360     21.1
2014.0     0.362     18.7
2015.0     0.363     16.4
2016.0     0.362     14.1
2017.0     0.360     11.8
2018.0     0.357      9.4
2019.0     0.352      7.0
2020.0     0.346      4.5
2021.0     0.338      1.8
2022.0     0.329    359.1
2023.0     0.318    356.2
2024.0     0.305    353.0
2025.0     0.291    349.6
2026.0     0.275    345.8
2027.0     0.257    341.4
2028.0     0.238    336.4
2029.0     0.218    330.5
2030.0     0.197    323.4
2031.0     0.176    314.6
2032.0     0.157    303.5
2033.0     0.142    289.7
2034.0     0.132    273.3
2035.0     0.131    255.5
2036.0     0.137    238.2
2037.0     0.148    223.1
2038.0     0.162    210.4
2039.0     0.176    199.7
2040.0     0.187    190.5
2041.0     0.195    182.1
2042.0     0.200    174.3
2043.0     0.202    166.7
2044.0     0.202    159.2
2045.0     0.200    151.7
2046.0     0.198    144.0
2047.0     0.197    136.2
2048.0     0.195    128.2
2049.0     0.195    120.2
2050.0     0.197    112.2
2051.0     0.200    104.5
2052.0     0.205     97.0

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.