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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 17:56:54

Orbital Elements for HU1597

WDS:	HU1597	WDS ID/Discoverer
P:	83.900	Orbital period (years)
a:	0.365	Semi-major axis (arcseconds)
i:	48.8	Inclination (degrees)
Ω:	93.4	Longitude of ascending node (degrees)
T:	1989.020	Epoch of periastron passage (year)
e:	0.253	Eccentricity
ω:	303.7	Longitude of periastron (degrees)
Start-Year:	1984.0	Year
End-Year:	2066.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HU1597

Position:	101603.26-595412.4	Epoch-2000 right ascension and declination
WDS-ID:	10161-5954	WDS designation
Discoverer Code:	HU1597	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	89263	HD catalog number
Hipparcos number:	50287	Hipparcos catalog number
V1:	7.03	Magnitude of the primary
V2:	7.05	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2006	Date of last observation
Orbit grade:	2	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for HU1597

WDS 6th Orbit including measures of HU1597

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

Ephemeris of HU1597

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.315    209.4
-------------------------
1984.0     0.187    359.4
1985.0     0.185      9.9
1986.0     0.187     20.5
1987.0     0.193     30.7
1988.0     0.201     40.1
1989.0     0.212     48.6
1990.0     0.225     56.2
1991.0     0.238     63.0
1992.0     0.251     69.2
1993.0     0.263     74.7
1994.0     0.274     79.8
1995.0     0.284     84.4
1996.0     0.292     88.8
1997.0     0.299     93.0
1998.0     0.304     97.0
1999.0     0.308    100.9
2000.0     0.311    104.7
2001.0     0.312    108.4
2002.0     0.312    112.2
2003.0     0.311    115.9
2004.0     0.309    119.7
2005.0     0.307    123.6
2006.0     0.304    127.5
2007.0     0.301    131.5
2008.0     0.297    135.5
2009.0     0.294    139.7
2010.0     0.291    144.0
2011.0     0.288    148.3
2012.0     0.285    152.8
2013.0     0.283    157.3
2014.0     0.282    161.9
2015.0     0.281    166.5
2016.0     0.281    171.1
2017.0     0.282    175.7
2018.0     0.283    180.3
2019.0     0.286    184.8
2020.0     0.289    189.2
2021.0     0.293    193.5
2022.0     0.298    197.7
2023.0     0.303    201.7
2024.0     0.309    205.6
2025.0     0.315    209.4
2026.0     0.322    213.0
2027.0     0.328    216.4
2028.0     0.335    219.7
2029.0     0.343    222.9
2030.0     0.350    225.9
2031.0     0.357    228.8
2032.0     0.364    231.6
2033.0     0.371    234.3
2034.0     0.377    237.0
2035.0     0.383    239.5
2036.0     0.389    241.9
2037.0     0.395    244.3
2038.0     0.399    246.6
2039.0     0.404    248.9
2040.0     0.407    251.1
2041.0     0.410    253.3
2042.0     0.412    255.4
2043.0     0.414    257.5
2044.0     0.415    259.7
2045.0     0.414    261.8
2046.0     0.413    263.9
2047.0     0.411    266.0
2048.0     0.408    268.2
2049.0     0.404    270.4
2050.0     0.399    272.7
2051.0     0.393    275.0
2052.0     0.386    277.4
2053.0     0.378    279.9
2054.0     0.368    282.5
2055.0     0.357    285.3
2056.0     0.346    288.2
2057.0     0.333    291.4
2058.0     0.319    294.8
2059.0     0.305    298.5
2060.0     0.290    302.7
2061.0     0.274    307.3
2062.0     0.258    312.4
2063.0     0.242    318.2
2064.0     0.227    324.8
2065.0     0.213    332.4

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.