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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 19:09:35

Orbital Elements for HDS2833BA,BB

WDS:	HDS2833BA,BB	WDS ID/Discoverer
P:	85.000	Orbital period (years)
a:	0.224	Semi-major axis (arcseconds)
i:	141.6	Inclination (degrees)
Ω:	27.9	Longitude of ascending node (degrees)
T:	2036.500	Epoch of periastron passage (year)
e:	0.083	Eccentricity
ω:	190.6	Longitude of periastron (degrees)
Start-Year:	1983.0	Year
End-Year:	2067.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HDS2833BA,BB

Position:	195324.27+201938.7	Epoch-2000 right ascension and declination
WDS-ID:	19534+2020	WDS designation
Discoverer Code:	HDS2833BA,BB	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	188212	HD catalog number
Hipparcos number:	97879	Hipparcos catalog number
V1:	7.63	Magnitude of the primary
V2:	9.39	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2021	Date of last observation
Orbit grade:	4	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for HDS2833BA,BB

WDS 6th Orbit including measures of HDS2833BA,BB

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

Ephemeris of HDS2833BA,BB

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.190    246.7
-------------------------
1983.0     0.226     51.9
1984.0     0.229     48.7
1985.0     0.233     45.6
1986.0     0.235     42.5
1987.0     0.237     39.5
1988.0     0.239     36.6
1989.0     0.241     33.7
1990.0     0.242     30.9
1991.0     0.242     28.1
1992.0     0.242     25.2
1993.0     0.242     22.4
1994.0     0.241     19.6
1995.0     0.240     16.7
1996.0     0.238     13.8
1997.0     0.236     10.8
1998.0     0.233      7.8
1999.0     0.231      4.7
2000.0     0.227      1.6
2001.0     0.224    358.3
2002.0     0.220    354.9
2003.0     0.216    351.5
2004.0     0.212    347.8
2005.0     0.208    344.1
2006.0     0.204    340.2
2007.0     0.200    336.1
2008.0     0.196    331.9
2009.0     0.192    327.5
2010.0     0.189    322.9
2011.0     0.185    318.2
2012.0     0.183    313.3
2013.0     0.180    308.2
2014.0     0.178    303.0
2015.0     0.177    297.8
2016.0     0.176    292.5
2017.0     0.176    287.1
2018.0     0.176    281.8
2019.0     0.177    276.5
2020.0     0.179    271.2
2021.0     0.181    266.1
2022.0     0.183    261.0
2023.0     0.185    256.1
2024.0     0.188    251.4
2025.0     0.190    246.7
2026.0     0.193    242.2
2027.0     0.196    237.8
2028.0     0.198    233.5
2029.0     0.200    229.4
2030.0     0.202    225.3
2031.0     0.204    221.2
2032.0     0.205    217.3
2033.0     0.206    213.3
2034.0     0.206    209.4
2035.0     0.205    205.5
2036.0     0.205    201.5
2037.0     0.203    197.6
2038.0     0.202    193.5
2039.0     0.200    189.4
2040.0     0.197    185.2
2041.0     0.194    180.8
2042.0     0.191    176.4
2043.0     0.188    171.8
2044.0     0.185    167.0
2045.0     0.182    162.1
2046.0     0.179    157.0
2047.0     0.177    151.8
2048.0     0.175    146.4
2049.0     0.173    140.9
2050.0     0.172    135.3
2051.0     0.171    129.6
2052.0     0.171    123.9
2053.0     0.172    118.3
2054.0     0.173    112.7
2055.0     0.175    107.2
2056.0     0.178    101.9
2057.0     0.181     96.7
2058.0     0.184     91.7
2059.0     0.188     86.9
2060.0     0.192     82.3
2061.0     0.196     77.9
2062.0     0.201     73.7
2063.0     0.205     69.7
2064.0     0.210     65.8
2065.0     0.214     62.1
2066.0     0.218     58.6

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.