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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 18:37:30

Orbital Elements for SEE271

WDS:	SEE271	WDS ID/Discoverer
P:	67.500	Orbital period (years)
a:	0.293	Semi-major axis (arcseconds)
i:	45.8	Inclination (degrees)
Ω:	215.2	Longitude of ascending node (degrees)
T:	2049.590	Epoch of periastron passage (year)
e:	0.788	Eccentricity
ω:	82.5	Longitude of periastron (degrees)
Start-Year:	1992.0	Year
End-Year:	2058.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for SEE271

Position:	161917.64-424026.2	Epoch-2000 right ascension and declination
WDS-ID:	16193-4240	WDS designation
Discoverer Code:	SEE271	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	146667	HD catalog number
Hipparcos number:	79963	Hipparcos catalog number
V1:	5.83	Magnitude of the primary
V2:	6.86	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	1991	Date of last observation
Orbit grade:	3	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for SEE271

WDS 6th Orbit including measures of SEE271

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

Ephemeris of SEE271

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.347    128.4
-------------------------
1992.0     0.272     73.9
1993.0     0.283     76.4
1994.0     0.293     78.8
1995.0     0.302     81.0
1996.0     0.311     83.1
1997.0     0.318     85.1
1998.0     0.325     87.0
1999.0     0.331     88.8
2000.0     0.337     90.6
2001.0     0.342     92.3
2002.0     0.347     93.9
2003.0     0.351     95.5
2004.0     0.355     97.1
2005.0     0.358     98.7
2006.0     0.361    100.2
2007.0     0.363    101.7
2008.0     0.365    103.2
2009.0     0.367    104.6
2010.0     0.368    106.1
2011.0     0.369    107.5
2012.0     0.369    109.0
2013.0     0.370    110.4
2014.0     0.370    111.9
2015.0     0.369    113.3
2016.0     0.368    114.7
2017.0     0.367    116.2
2018.0     0.366    117.7
2019.0     0.364    119.1
2020.0     0.362    120.6
2021.0     0.360    122.1
2022.0     0.357    123.7
2023.0     0.354    125.2
2024.0     0.351    126.8
2025.0     0.347    128.4
2026.0     0.343    130.1
2027.0     0.339    131.8
2028.0     0.334    133.5
2029.0     0.329    135.3
2030.0     0.323    137.1
2031.0     0.318    139.0
2032.0     0.311    141.0
2033.0     0.305    143.1
2034.0     0.298    145.3
2035.0     0.290    147.5
2036.0     0.282    149.9
2037.0     0.274    152.5
2038.0     0.264    155.2
2039.0     0.255    158.1
2040.0     0.244    161.3
2041.0     0.233    164.7
2042.0     0.220    168.6
2043.0     0.206    172.9
2044.0     0.191    177.9
2045.0     0.174    183.7
2046.0     0.154    191.0
2047.0     0.130    200.8
2048.0     0.100    215.7
2049.0     0.061    247.8
2050.0     0.049    334.5
2051.0     0.090     20.1
2052.0     0.128     36.8
2053.0     0.158     46.4
2054.0     0.183     53.2
2055.0     0.204     58.4
2056.0     0.223     62.7
2057.0     0.239     66.4

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.