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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 19:03:49

Orbital Elements for SE2BC

WDS:	SE2BC	WDS ID/Discoverer
P:	62.790	Orbital period (years)
a:	0.379	Semi-major axis (arcseconds)
i:	113.4	Inclination (degrees)
Ω:	271.5	Longitude of ascending node (degrees)
T:	1956.620	Epoch of periastron passage (year)
e:	0.496	Eccentricity
ω:	4.6	Longitude of periastron (degrees)
Start-Year:	1994.0	Year
End-Year:	2056.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for SE2BC

Position:	191107.99+384652.4	Epoch-2000 right ascension and declination
WDS-ID:	19111+3847	WDS designation
Discoverer Code:	SE2BC	Discover designation and components
ADS number:	12145	Aitken Double Star catalog
HD number:	179484	HD catalog number
Hipparcos number:	94252	Hipparcos catalog number
V1:	8.31	Magnitude of the primary
V2:	9.40	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2001	Date of last observation
Orbit grade:	2	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for SE2BC

WDS 6th Orbit including measures of SE2BC

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

Ephemeris of SE2BC

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.108    184.2
-------------------------
1994.0     0.529     84.1
1995.0     0.517     83.0
1996.0     0.504     82.0
1997.0     0.490     80.8
1998.0     0.473     79.6
1999.0     0.456     78.3
2000.0     0.436     76.8
2001.0     0.415     75.3
2002.0     0.393     73.5
2003.0     0.369     71.6
2004.0     0.344     69.3
2005.0     0.317     66.7
2006.0     0.289     63.6
2007.0     0.260     59.9
2008.0     0.231     55.2
2009.0     0.201     49.0
2010.0     0.172     40.8
2011.0     0.147     29.6
2012.0     0.126     14.1
2013.0     0.116    354.4
2014.0     0.118    333.3
2015.0     0.132    314.9
2016.0     0.151    300.6
2017.0     0.171    289.7
2018.0     0.186    280.8
2019.0     0.191    272.9
2020.0     0.186    265.0
2021.0     0.170    256.1
2022.0     0.148    244.9
2023.0     0.126    229.6
2024.0     0.110    208.7
2025.0     0.108    184.2
2026.0     0.122    162.3
2027.0     0.147    146.5
2028.0     0.178    135.6
2029.0     0.210    128.0
2030.0     0.242    122.4
2031.0     0.274    118.1
2032.0     0.305    114.7
2033.0     0.334    111.9
2034.0     0.361    109.6
2035.0     0.387    107.5
2036.0     0.411    105.8
2037.0     0.433    104.2
2038.0     0.453    102.7
2039.0     0.472    101.4
2040.0     0.489    100.1
2041.0     0.504     99.0
2042.0     0.517     97.9
2043.0     0.529     96.9
2044.0     0.539     95.9
2045.0     0.548     94.9
2046.0     0.554     94.0
2047.0     0.560     93.1
2048.0     0.563     92.2
2049.0     0.566     91.3
2050.0     0.566     90.4
2051.0     0.565     89.5
2052.0     0.563     88.6
2053.0     0.558     87.7
2054.0     0.553     86.8
2055.0     0.546     85.8

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.