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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 18:46:08

Orbital Elements for HU1179

WDS:	HU1179	WDS ID/Discoverer
P:	91.700	Orbital period (years)
a:	0.181	Semi-major axis (arcseconds)
i:	104.4	Inclination (degrees)
Ω:	96.9	Longitude of ascending node (degrees)
T:	1980.410	Epoch of periastron passage (year)
e:	0.692	Eccentricity
ω:	37.9	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 HU1179

Position:	172402.26+383457.7	Epoch-2000 right ascension and declination
WDS-ID:	17240+3835	WDS designation
Discoverer Code:	HU1179	Discover designation and components
ADS number:	10531	Aitken Double Star catalog
HD number:	157853	HD catalog number
Hipparcos number:	85149	Hipparcos catalog number
V1:	7.13	Magnitude of the primary
V2:	7.79	Magnitude of the secondary
Equinox:		Equinox
Date:	1997	Date of last observation
Orbit grade:	2	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for HU1179

WDS 6th Orbit including measures of HU1179

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

Ephemeris of HU1179

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.250    266.4
-------------------------
1980.0     0.051     90.1
1981.0     0.034     77.1
1982.0     0.018     37.5
1983.0     0.023    326.1
1984.0     0.043    302.5
1985.0     0.063    294.0
1986.0     0.082    289.5
1987.0     0.099    286.7
1988.0     0.115    284.6
1989.0     0.130    283.1
1990.0     0.143    281.9
1991.0     0.155    280.8
1992.0     0.167    279.9
1993.0     0.177    279.2
1994.0     0.186    278.5
1995.0     0.195    277.8
1996.0     0.203    277.2
1997.0     0.211    276.7
1998.0     0.217    276.2
1999.0     0.224    275.7
2000.0     0.229    275.3
2001.0     0.234    274.8
2002.0     0.239    274.4
2003.0     0.243    274.0
2004.0     0.247    273.6
2005.0     0.250    273.3
2006.0     0.253    272.9
2007.0     0.256    272.5
2008.0     0.258    272.2
2009.0     0.260    271.9
2010.0     0.262    271.5
2011.0     0.263    271.2
2012.0     0.264    270.8
2013.0     0.264    270.5
2014.0     0.264    270.2
2015.0     0.264    269.9
2016.0     0.264    269.5
2017.0     0.264    269.2
2018.0     0.263    268.9
2019.0     0.262    268.5
2020.0     0.260    268.2
2021.0     0.259    267.8
2022.0     0.257    267.5
2023.0     0.255    267.1
2024.0     0.252    266.8
2025.0     0.250    266.4
2026.0     0.247    266.0
2027.0     0.244    265.7
2028.0     0.241    265.3
2029.0     0.237    264.9
2030.0     0.233    264.4
2031.0     0.229    264.0
2032.0     0.225    263.6
2033.0     0.221    263.1
2034.0     0.216    262.6
2035.0     0.212    262.1
2036.0     0.207    261.6
2037.0     0.201    261.0
2038.0     0.196    260.4
2039.0     0.190    259.8
2040.0     0.185    259.2
2041.0     0.179    258.5
2042.0     0.173    257.7
2043.0     0.166    256.9
2044.0     0.160    256.1
2045.0     0.153    255.1
2046.0     0.146    254.1
2047.0     0.139    252.9
2048.0     0.132    251.7
2049.0     0.125    250.3
2050.0     0.117    248.7
2051.0     0.109    246.9
2052.0     0.102    244.8
2053.0     0.094    242.4
2054.0     0.086    239.5
2055.0     0.078    236.1
2056.0     0.071    232.0
2057.0     0.063    226.8
2058.0     0.056    220.3
2059.0     0.050    212.1
2060.0     0.045    201.8
2061.0     0.041    189.2
2062.0     0.040    175.0
2063.0     0.040    160.4
2064.0     0.043    147.0
2065.0     0.047    135.6
2066.0     0.053    126.3
2067.0     0.058    118.7
2068.0     0.062    112.4
2069.0     0.065    106.7

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.