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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 19:43:42

Orbital Elements for B613

WDS:	B613	WDS ID/Discoverer
P:	86.410	Orbital period (years)
a:	0.178	Semi-major axis (arcseconds)
i:	125.0	Inclination (degrees)
Ω:	142.7	Longitude of ascending node (degrees)
T:	1997.290	Epoch of periastron passage (year)
e:	0.898	Eccentricity
ω:	193.5	Longitude of periastron (degrees)
Start-Year:	1982.0	Year
End-Year:	2068.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for B613

Position:	234452.79-381957.4	Epoch-2000 right ascension and declination
WDS-ID:	23449-3820	WDS designation
Discoverer Code:	B613	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	222909	HD catalog number
Hipparcos number:	117141	Hipparcos catalog number
V1:	8.69	Magnitude of the primary
V2:	8.91	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2019	Date of last observation
Orbit grade:	3	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:		Flags

Double Star Orbit for B613

WDS 6th Orbit including measures of B613

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

Ephemeris of B613

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.308    139.8
-------------------------
1982.0     0.214    123.4
1983.0     0.205    122.6
1984.0     0.196    121.8
1985.0     0.186    120.9
1986.0     0.175    119.9
1987.0     0.164    118.7
1988.0     0.152    117.4
1989.0     0.140    115.8
1990.0     0.127    113.9
1991.0     0.112    111.6
1992.0     0.097    108.5
1993.0     0.081    104.3
1994.0     0.064     97.9
1995.0     0.045     86.3
1996.0     0.027     58.1
1997.0     0.019    342.7
1998.0     0.018    220.7
1999.0     0.044    177.6
2000.0     0.068    166.6
2001.0     0.089    161.2
2002.0     0.108    157.8
2003.0     0.125    155.3
2004.0     0.141    153.4
2005.0     0.155    151.9
2006.0     0.168    150.6
2007.0     0.181    149.5
2008.0     0.192    148.6
2009.0     0.203    147.7
2010.0     0.213    146.9
2011.0     0.222    146.2
2012.0     0.231    145.6
2013.0     0.240    145.0
2014.0     0.248    144.4
2015.0     0.255    143.9
2016.0     0.262    143.4
2017.0     0.269    142.9
2018.0     0.275    142.5
2019.0     0.281    142.0
2020.0     0.286    141.6
2021.0     0.291    141.2
2022.0     0.296    140.8
2023.0     0.300    140.5
2024.0     0.304    140.1
2025.0     0.308    139.8
2026.0     0.312    139.4
2027.0     0.315    139.1
2028.0     0.318    138.7
2029.0     0.320    138.4
2030.0     0.323    138.1
2031.0     0.325    137.8
2032.0     0.327    137.4
2033.0     0.328    137.1
2034.0     0.329    136.8
2035.0     0.330    136.5
2036.0     0.331    136.2
2037.0     0.332    135.9
2038.0     0.332    135.6
2039.0     0.332    135.3
2040.0     0.332    135.0
2041.0     0.331    134.7
2042.0     0.331    134.4
2043.0     0.330    134.1
2044.0     0.328    133.8
2045.0     0.327    133.5
2046.0     0.325    133.2
2047.0     0.323    132.8
2048.0     0.321    132.5
2049.0     0.319    132.2
2050.0     0.316    131.9
2051.0     0.313    131.5
2052.0     0.310    131.2
2053.0     0.306    130.8
2054.0     0.302    130.5
2055.0     0.298    130.1
2056.0     0.294    129.7
2057.0     0.290    129.3
2058.0     0.285    128.9
2059.0     0.279    128.5
2060.0     0.274    128.1
2061.0     0.268    127.6
2062.0     0.262    127.2
2063.0     0.255    126.7
2064.0     0.249    126.1
2065.0     0.241    125.6
2066.0     0.234    125.0
2067.0     0.226    124.4

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.