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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 17:42:26

Orbital Elements for HDS1273

WDS:	HDS1273	WDS ID/Discoverer
P:	84.300	Orbital period (years)
a:	0.272	Semi-major axis (arcseconds)
i:	99.4	Inclination (degrees)
Ω:	236.5	Longitude of ascending node (degrees)
T:	2020.380	Epoch of periastron passage (year)
e:	0.572	Eccentricity
ω:	90.0	Longitude of periastron (degrees)
Start-Year:	1983.0	Year
End-Year:	2067.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HDS1273

Position:	084735.57-312353.0	Epoch-2000 right ascension and declination
WDS-ID:	08476-3124	WDS designation
Discoverer Code:	HDS1273	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	.	HD catalog number
Hipparcos number:	.	Hipparcos catalog number
V1:	10.68	Magnitude of the primary
V2:	10.78	Magnitude of the secondary
Equinox:		Equinox
Date:	2018	Date of last observation
Orbit grade:	4	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:		Flags

Double Star Orbit for HDS1273

WDS 6th Orbit including measures of HDS1273

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

Ephemeris of HDS1273

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.148     59.6
-------------------------
1983.0     0.085    290.4
1984.0     0.091    284.9
1985.0     0.098    280.1
1986.0     0.105    276.0
1987.0     0.112    272.4
1988.0     0.120    269.3
1989.0     0.128    266.5
1990.0     0.136    264.1
1991.0     0.143    261.9
1992.0     0.151    260.0
1993.0     0.159    258.2
1994.0     0.166    256.6
1995.0     0.174    255.1
1996.0     0.180    253.8
1997.0     0.187    252.5
1998.0     0.193    251.4
1999.0     0.199    250.3
2000.0     0.205    249.2
2001.0     0.210    248.2
2002.0     0.214    247.3
2003.0     0.218    246.4
2004.0     0.221    245.5
2005.0     0.223    244.7
2006.0     0.224    243.8
2007.0     0.225    243.0
2008.0     0.224    242.1
2009.0     0.221    241.3
2010.0     0.217    240.4
2011.0     0.211    239.5
2012.0     0.203    238.5
2013.0     0.193    237.4
2014.0     0.180    236.2
2015.0     0.163    234.8
2016.0     0.142    232.9
2017.0     0.118    230.4
2018.0     0.088    226.4
2019.0     0.055    217.8
2020.0     0.024    184.4
2021.0     0.030     94.5
2022.0     0.064     72.3
2023.0     0.096     65.4
2024.0     0.124     61.9
2025.0     0.148     59.6
2026.0     0.167     57.9
2027.0     0.183     56.5
2028.0     0.196     55.3
2029.0     0.205     54.3
2030.0     0.213     53.3
2031.0     0.218     52.4
2032.0     0.222     51.5
2033.0     0.224     50.7
2034.0     0.225     49.8
2035.0     0.224     49.0
2036.0     0.223     48.1
2037.0     0.220     47.3
2038.0     0.217     46.4
2039.0     0.213     45.5
2040.0     0.209     44.5
2041.0     0.204     43.5
2042.0     0.198     42.5
2043.0     0.192     41.4
2044.0     0.186     40.2
2045.0     0.179     38.9
2046.0     0.172     37.5
2047.0     0.164     36.0
2048.0     0.157     34.4
2049.0     0.149     32.6
2050.0     0.142     30.6
2051.0     0.134     28.3
2052.0     0.126     25.8
2053.0     0.118     23.0
2054.0     0.111     19.8
2055.0     0.103     16.0
2056.0     0.096     11.8
2057.0     0.090      6.9
2058.0     0.084      1.2
2059.0     0.079    354.8
2060.0     0.074    347.5
2061.0     0.072    339.6
2062.0     0.070    331.1
2063.0     0.070    322.4
2064.0     0.071    313.9
2065.0     0.074    305.9
2066.0     0.078    298.6

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.