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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 19:44:07

Orbital Elements for HDS3380

WDS:	HDS3380	WDS ID/Discoverer
P:	91.300	Orbital period (years)
a:	0.188	Semi-major axis (arcseconds)
i:	42.9	Inclination (degrees)
Ω:	69.8	Longitude of ascending node (degrees)
T:	2020.230	Epoch of periastron passage (year)
e:	0.508	Eccentricity
ω:	20.4	Longitude of periastron (degrees)
Start-Year:	1980.0	Year
End-Year:	2070.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HDS3380

Position:	234758.45-193021.1	Epoch-2000 right ascension and declination
WDS-ID:	23480-1930	WDS designation
Discoverer Code:	HDS3380	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	223254	HD catalog number
Hipparcos number:	117377	Hipparcos catalog number
V1:	10.48	Magnitude of the primary
V2:	12.53	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2020	Date of last observation
Orbit grade:	4	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:		Flags

Double Star Orbit for HDS3380

WDS 6th Orbit including measures of HDS3380

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

Ephemeris of HDS3380

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.082    145.5
-------------------------
1980.0     0.265    271.5
1981.0     0.263    272.8
1982.0     0.260    274.1
1983.0     0.257    275.4
1984.0     0.253    276.8
1985.0     0.249    278.1
1986.0     0.246    279.6
1987.0     0.241    281.1
1988.0     0.237    282.6
1989.0     0.232    284.2
1990.0     0.228    285.9
1991.0     0.223    287.6
1992.0     0.217    289.4
1993.0     0.212    291.3
1994.0     0.206    293.3
1995.0     0.201    295.4
1996.0     0.195    297.7
1997.0     0.189    300.1
1998.0     0.183    302.6
1999.0     0.176    305.4
2000.0     0.170    308.3
2001.0     0.163    311.5
2002.0     0.157    314.9
2003.0     0.151    318.6
2004.0     0.144    322.7
2005.0     0.138    327.1
2006.0     0.132    331.9
2007.0     0.127    337.1
2008.0     0.121    342.8
2009.0     0.117    349.0
2010.0     0.113    355.7
2011.0     0.109      2.9
2012.0     0.106     10.5
2013.0     0.104     18.5
2014.0     0.102     26.8
2015.0     0.101     35.4
2016.0     0.099     44.2
2017.0     0.098     53.2
2018.0     0.096     62.5
2019.0     0.094     72.2
2020.0     0.091     82.6
2021.0     0.087     93.7
2022.0     0.084    105.8
2023.0     0.081    118.7
2024.0     0.081    132.2
2025.0     0.082    145.5
2026.0     0.086    158.0
2027.0     0.092    169.2
2028.0     0.099    178.8
2029.0     0.108    187.1
2030.0     0.117    194.0
2031.0     0.126    200.0
2032.0     0.136    205.1
2033.0     0.145    209.6
2034.0     0.155    213.5
2035.0     0.164    216.9
2036.0     0.173    220.0
2037.0     0.181    222.9
2038.0     0.189    225.4
2039.0     0.197    227.8
2040.0     0.204    230.0
2041.0     0.211    232.0
2042.0     0.218    233.9
2043.0     0.224    235.7
2044.0     0.230    237.4
2045.0     0.235    239.0
2046.0     0.241    240.6
2047.0     0.245    242.1
2048.0     0.250    243.5
2049.0     0.254    244.9
2050.0     0.258    246.2
2051.0     0.261    247.5
2052.0     0.264    248.8
2053.0     0.267    250.1
2054.0     0.269    251.3
2055.0     0.271    252.5
2056.0     0.273    253.7
2057.0     0.275    254.9
2058.0     0.276    256.0
2059.0     0.277    257.2
2060.0     0.277    258.3
2061.0     0.278    259.5
2062.0     0.278    260.6
2063.0     0.278    261.7
2064.0     0.277    262.9
2065.0     0.276    264.0
2066.0     0.275    265.2
2067.0     0.274    266.3
2068.0     0.272    267.5
2069.0     0.271    268.7

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.