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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 19:30:14

Orbital Elements for I1449

WDS:	I1449	WDS ID/Discoverer
P:	87.700	Orbital period (years)
a:	0.301	Semi-major axis (arcseconds)
i:	120.0	Inclination (degrees)
Ω:	126.3	Longitude of ascending node (degrees)
T:	1998.610	Epoch of periastron passage (year)
e:	0.759	Eccentricity
ω:	84.1	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 I1449

Position:	215505.58-314747.8	Epoch-2000 right ascension and declination
WDS-ID:	21551-3148	WDS designation
Discoverer Code:	I1449	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	208166	HD catalog number
Hipparcos number:	108184	Hipparcos catalog number
V1:	10.03	Magnitude of the primary
V2:	10.27	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2017	Date of last observation
Orbit grade:	4	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:		Flags

Double Star Orbit for I1449

WDS 6th Orbit including measures of I1449

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

Ephemeris of I1449

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.281    255.6
-------------------------
1982.0     0.229    175.2
1983.0     0.226    172.9
1984.0     0.223    170.5
1985.0     0.220    168.0
1986.0     0.217    165.5
1987.0     0.213    162.9
1988.0     0.208    160.1
1989.0     0.203    157.3
1990.0     0.196    154.2
1991.0     0.189    151.0
1992.0     0.180    147.4
1993.0     0.170    143.5
1994.0     0.156    138.9
1995.0     0.140    133.4
1996.0     0.118    126.1
1997.0     0.089    114.7
1998.0     0.052     88.8
1999.0     0.039     13.6
2000.0     0.074    329.4
2001.0     0.109    314.6
2002.0     0.137    306.5
2003.0     0.160    301.1
2004.0     0.179    296.9
2005.0     0.194    293.4
2006.0     0.207    290.3
2007.0     0.218    287.7
2008.0     0.227    285.2
2009.0     0.235    282.9
2010.0     0.242    280.8
2011.0     0.248    278.8
2012.0     0.254    276.9
2013.0     0.258    275.0
2014.0     0.262    273.2
2015.0     0.266    271.5
2016.0     0.269    269.8
2017.0     0.271    268.1
2018.0     0.273    266.5
2019.0     0.275    264.9
2020.0     0.277    263.3
2021.0     0.278    261.7
2022.0     0.279    260.2
2023.0     0.280    258.6
2024.0     0.280    257.1
2025.0     0.281    255.6
2026.0     0.281    254.0
2027.0     0.281    252.5
2028.0     0.281    251.0
2029.0     0.281    249.4
2030.0     0.280    247.9
2031.0     0.280    246.3
2032.0     0.279    244.8
2033.0     0.278    243.2
2034.0     0.278    241.7
2035.0     0.277    240.1
2036.0     0.276    238.5
2037.0     0.275    236.9
2038.0     0.274    235.3
2039.0     0.273    233.7
2040.0     0.272    232.1
2041.0     0.271    230.4
2042.0     0.269    228.7
2043.0     0.268    227.1
2044.0     0.267    225.4
2045.0     0.266    223.7
2046.0     0.265    222.0
2047.0     0.263    220.2
2048.0     0.262    218.5
2049.0     0.261    216.7
2050.0     0.259    214.9
2051.0     0.258    213.1
2052.0     0.257    211.3
2053.0     0.255    209.4
2054.0     0.254    207.5
2055.0     0.253    205.7
2056.0     0.252    203.8
2057.0     0.250    201.8
2058.0     0.249    199.9
2059.0     0.247    197.9
2060.0     0.246    195.9
2061.0     0.245    193.9
2062.0     0.243    191.9
2063.0     0.242    189.8
2064.0     0.240    187.7
2065.0     0.238    185.6
2066.0     0.237    183.5
2067.0     0.235    181.3

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.