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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 19:19:39

Orbital Elements for HU1626

WDS:	HU1626	WDS ID/Discoverer
P:	155.900	Orbital period (years)
a:	0.841	Semi-major axis (arcseconds)
i:	149.9	Inclination (degrees)
Ω:	127.0	Longitude of ascending node (degrees)
T:	2049.180	Epoch of periastron passage (year)
e:	0.61	Eccentricity
ω:	160.0	Longitude of periastron (degrees)
Start-Year:	1948.0	Year
End-Year:	2102.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HU1626

Position:	211122.79-522021.3	Epoch-2000 right ascension and declination
WDS-ID:	21114-5220	WDS designation
Discoverer Code:	HU1626	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	201427	HD catalog number
Hipparcos number:	104604	Hipparcos catalog number
V1:	7.27	Magnitude of the primary
V2:	8.82	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2018	Date of last observation
Orbit grade:	4	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for HU1626

WDS 6th Orbit including measures of HU1626

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

Ephemeris of HU1626

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.818     98.8
-------------------------
1948.0     1.207    160.2
1949.0     1.216    159.5
1950.0     1.225    158.7
1951.0     1.234    158.0
1952.0     1.242    157.3
1953.0     1.250    156.5
1954.0     1.258    155.8
1955.0     1.265    155.1
1956.0     1.272    154.4
1957.0     1.279    153.7
1958.0     1.285    153.1
1959.0     1.291    152.4
1960.0     1.296    151.7
1961.0     1.301    151.0
1962.0     1.306    150.4
1963.0     1.311    149.7
1964.0     1.315    149.1
1965.0     1.318    148.4
1966.0     1.322    147.8
1967.0     1.325    147.2
1968.0     1.328    146.5
1969.0     1.330    145.9
1970.0     1.332    145.3
1971.0     1.334    144.6
1972.0     1.335    144.0
1973.0     1.336    143.4
1974.0     1.336    142.7
1975.0     1.337    142.1
1976.0     1.336    141.5
1977.0     1.336    140.9
1978.0     1.335    140.2
1979.0     1.334    139.6
1980.0     1.332    139.0
1981.0     1.330    138.3
1982.0     1.328    137.7
1983.0     1.325    137.1
1984.0     1.322    136.4
1985.0     1.318    135.8
1986.0     1.314    135.1
1987.0     1.310    134.5
1988.0     1.305    133.8
1989.0     1.300    133.2
1990.0     1.295    132.5
1991.0     1.289    131.8
1992.0     1.283    131.2
1993.0     1.276    130.5
1994.0     1.269    129.8
1995.0     1.261    129.1
1996.0     1.254    128.4
1997.0     1.245    127.7
1998.0     1.237    126.9
1999.0     1.227    126.2
2000.0     1.218    125.4
2001.0     1.208    124.7
2002.0     1.197    123.9
2003.0     1.186    123.1
2004.0     1.175    122.3
2005.0     1.163    121.5
2006.0     1.151    120.7
2007.0     1.138    119.8
2008.0     1.125    118.9
2009.0     1.111    118.0
2010.0     1.096    117.1
2011.0     1.082    116.2
2012.0     1.066    115.2
2013.0     1.051    114.2
2014.0     1.034    113.2
2015.0     1.017    112.1
2016.0     1.000    111.0
2017.0     0.982    109.9
2018.0     0.964    108.7
2019.0     0.945    107.5
2020.0     0.925    106.2
2021.0     0.905    104.8
2022.0     0.884    103.4
2023.0     0.862    102.0
2024.0     0.840    100.4
2025.0     0.818     98.8
2026.0     0.795     97.1
2027.0     0.771     95.2
2028.0     0.747     93.3
2029.0     0.722     91.2
2030.0     0.696     89.0
2031.0     0.670     86.6
2032.0     0.644     84.0
2033.0     0.617     81.2
2034.0     0.589     78.1
2035.0     0.562     74.7
2036.0     0.534     71.0
2037.0     0.506     66.8
2038.0     0.479     62.2
2039.0     0.452     57.0
2040.0     0.426     51.2
2041.0     0.401     44.7
2042.0     0.379     37.3
2043.0     0.359     29.0
2044.0     0.342     19.9
2045.0     0.330     10.0
2046.0     0.322    359.4
2047.0     0.318    348.4
2048.0     0.318    337.3
2049.0     0.322    326.4
2050.0     0.329    315.8
2051.0     0.337    305.7
2052.0     0.347    296.1
2053.0     0.358    287.1
2054.0     0.370    278.6
2055.0     0.384    270.7
2056.0     0.398    263.4
2057.0     0.414    256.6
2058.0     0.431    250.3
2059.0     0.449    244.5
2060.0     0.468    239.2
2061.0     0.487    234.3
2062.0     0.508    229.8
2063.0     0.528    225.6
2064.0     0.549    221.7
2065.0     0.570    218.2
2066.0     0.591    214.8
2067.0     0.613    211.8
2068.0     0.634    208.9
2069.0     0.655    206.2
2070.0     0.676    203.6
2071.0     0.697    201.3
2072.0     0.718    199.0
2073.0     0.738    196.9
2074.0     0.759    194.9
2075.0     0.779    193.0
2076.0     0.798    191.2
2077.0     0.818    189.5
2078.0     0.837    187.9
2079.0     0.855    186.3
2080.0     0.874    184.8
2081.0     0.892    183.4
2082.0     0.910    182.0
2083.0     0.927    180.7
2084.0     0.944    179.4
2085.0     0.961    178.1
2086.0     0.977    177.0
2087.0     0.993    175.8
2088.0     1.008    174.7
2089.0     1.023    173.6
2090.0     1.038    172.5
2091.0     1.053    171.5
2092.0     1.067    170.5
2093.0     1.081    169.5
2094.0     1.094    168.6
2095.0     1.107    167.7
2096.0     1.119    166.8
2097.0     1.132    165.9
2098.0     1.144    165.0
2099.0     1.155    164.2
2100.0     1.166    163.3
2101.0     1.177    162.5

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.