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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 19:30:23

Orbital Elements for A1449

WDS:	A1449	WDS ID/Discoverer
P:	161.570	Orbital period (years)
a:	0.241	Semi-major axis (arcseconds)
i:	152.8	Inclination (degrees)
Ω:	17.5	Longitude of ascending node (degrees)
T:	1978.150	Epoch of periastron passage (year)
e:	0.709	Eccentricity
ω:	351.1	Longitude of periastron (degrees)
Start-Year:	1945.0	Year
End-Year:	2105.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for A1449

Position:	215533.91+384859.8	Epoch-2000 right ascension and declination
WDS-ID:	21556+3849	WDS designation
Discoverer Code:	A1449	Discover designation and components
ADS number:	15454	Aitken Double Star catalog
HD number:	208490	HD catalog number
Hipparcos number:	108231	Hipparcos catalog number
V1:	9.6	Magnitude of the primary
V2:	9.6	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2008	Date of last observation
Orbit grade:	3	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for A1449

WDS 6th Orbit including measures of A1449

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

Ephemeris of A1449

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.350    223.6
-------------------------
1945.0     0.299    177.4
1946.0     0.294    176.4
1947.0     0.289    175.5
1948.0     0.283    174.5
1949.0     0.277    173.4
1950.0     0.271    172.4
1951.0     0.265    171.2
1952.0     0.259    170.1
1953.0     0.252    168.8
1954.0     0.246    167.5
1955.0     0.239    166.1
1956.0     0.232    164.7
1957.0     0.225    163.1
1958.0     0.218    161.5
1959.0     0.210    159.7
1960.0     0.202    157.8
1961.0     0.194    155.7
1962.0     0.186    153.4
1963.0     0.178    151.0
1964.0     0.169    148.3
1965.0     0.160    145.3
1966.0     0.151    142.0
1967.0     0.142    138.2
1968.0     0.133    133.9
1969.0     0.124    129.0
1970.0     0.115    123.3
1971.0     0.106    116.6
1972.0     0.097    108.7
1973.0     0.089     99.4
1974.0     0.082     88.3
1975.0     0.076     75.3
1976.0     0.072     60.6
1977.0     0.070     44.5
1978.0     0.070     27.9
1979.0     0.071     11.5
1980.0     0.074    356.0
1981.0     0.078    341.8
1982.0     0.083    329.2
1983.0     0.089    318.2
1984.0     0.096    308.7
1985.0     0.104    300.6
1986.0     0.112    293.5
1987.0     0.120    287.5
1988.0     0.128    282.2
1989.0     0.136    277.5
1990.0     0.145    273.4
1991.0     0.153    269.8
1992.0     0.161    266.5
1993.0     0.169    263.5
1994.0     0.177    260.8
1995.0     0.185    258.3
1996.0     0.193    256.1
1997.0     0.200    254.0
1998.0     0.208    252.0
1999.0     0.215    250.2
2000.0     0.222    248.5
2001.0     0.229    246.9
2002.0     0.235    245.4
2003.0     0.242    244.0
2004.0     0.248    242.6
2005.0     0.255    241.3
2006.0     0.261    240.1
2007.0     0.267    238.9
2008.0     0.272    237.8
2009.0     0.278    236.8
2010.0     0.283    235.7
2011.0     0.289    234.7
2012.0     0.294    233.8
2013.0     0.299    232.9
2014.0     0.304    232.0
2015.0     0.309    231.1
2016.0     0.314    230.3
2017.0     0.318    229.4
2018.0     0.323    228.7
2019.0     0.327    227.9
2020.0     0.331    227.1
2021.0     0.335    226.4
2022.0     0.339    225.7
2023.0     0.343    225.0
2024.0     0.347    224.3
2025.0     0.350    223.6
2026.0     0.354    223.0
2027.0     0.357    222.3
2028.0     0.360    221.7
2029.0     0.364    221.1
2030.0     0.367    220.5
2031.0     0.370    219.9
2032.0     0.372    219.3
2033.0     0.375    218.7
2034.0     0.378    218.1
2035.0     0.380    217.6
2036.0     0.383    217.0
2037.0     0.385    216.5
2038.0     0.387    215.9
2039.0     0.389    215.4
2040.0     0.391    214.9
2041.0     0.393    214.3
2042.0     0.395    213.8
2043.0     0.397    213.3
2044.0     0.398    212.8
2045.0     0.400    212.3
2046.0     0.401    211.8
2047.0     0.403    211.3
2048.0     0.404    210.8
2049.0     0.405    210.3
2050.0     0.406    209.8
2051.0     0.407    209.3
2052.0     0.408    208.8
2053.0     0.408    208.3
2054.0     0.409    207.8
2055.0     0.410    207.3
2056.0     0.410    206.8
2057.0     0.410    206.4
2058.0     0.411    205.9
2059.0     0.411    205.4
2060.0     0.411    204.9
2061.0     0.411    204.4
2062.0     0.411    204.0
2063.0     0.411    203.5
2064.0     0.410    203.0
2065.0     0.410    202.5
2066.0     0.409    202.0
2067.0     0.409    201.5
2068.0     0.408    201.1
2069.0     0.407    200.6
2070.0     0.406    200.1
2071.0     0.405    199.6
2072.0     0.404    199.1
2073.0     0.403    198.6
2074.0     0.402    198.1
2075.0     0.400    197.6
2076.0     0.399    197.1
2077.0     0.397    196.6
2078.0     0.396    196.0
2079.0     0.394    195.5
2080.0     0.392    195.0
2081.0     0.390    194.5
2082.0     0.388    193.9
2083.0     0.386    193.4
2084.0     0.383    192.8
2085.0     0.381    192.3
2086.0     0.378    191.7
2087.0     0.376    191.1
2088.0     0.373    190.6
2089.0     0.370    190.0
2090.0     0.367    189.4
2091.0     0.364    188.8
2092.0     0.361    188.2
2093.0     0.357    187.5
2094.0     0.354    186.9
2095.0     0.350    186.2
2096.0     0.347    185.6
2097.0     0.343    184.9
2098.0     0.339    184.2
2099.0     0.335    183.5
2100.0     0.330    182.7
2101.0     0.326    182.0
2102.0     0.322    181.2
2103.0     0.317    180.4
2104.0     0.312    179.6

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.