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

Double Star Calculator - Orbit

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

Orbital Elements for HDS3293AA,AB

WDS:	HDS3293AA,AB	WDS ID/Discoverer
P:	60.740	Orbital period (years)
a:	0.404	Semi-major axis (arcseconds)
i:	72.2	Inclination (degrees)
Ω:	178.5	Longitude of ascending node (degrees)
T:	2017.033	Epoch of periastron passage (year)
e:	0.865	Eccentricity
ω:	95.8	Longitude of periastron (degrees)
Start-Year:	1995.0	Year
End-Year:	2055.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HDS3293AA,AB

Position:	230640.81-234435.2	Epoch-2000 right ascension and declination
WDS-ID:	23067-2345	WDS designation
Discoverer Code:	HDS3293AA,AB	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	218240	HD catalog number
Hipparcos number:	114119	Hipparcos catalog number
V1:	4.79	Magnitude of the primary
V2:	6.77	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2021	Date of last observation
Orbit grade:	3	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:		Flags

Double Star Orbit for HDS3293AA,AB

WDS 6th Orbit including measures of HDS3293AA,AB

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

Ephemeris of HDS3293AA,AB

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.204     36.7
-------------------------
1995.0     0.268    125.9
1996.0     0.271    128.0
1997.0     0.274    130.0
1998.0     0.276    132.0
1999.0     0.278    133.9
2000.0     0.280    135.8
2001.0     0.281    137.7
2002.0     0.282    139.6
2003.0     0.282    141.4
2004.0     0.282    143.3
2005.0     0.281    145.2
2006.0     0.279    147.1
2007.0     0.276    149.0
2008.0     0.272    151.0
2009.0     0.266    153.0
2010.0     0.259    155.2
2011.0     0.249    157.4
2012.0     0.237    159.9
2013.0     0.220    162.8
2014.0     0.198    166.2
2015.0     0.165    170.7
2016.0     0.112    178.4
2017.0     0.017    269.9
2018.0     0.106      1.4
2019.0     0.147     10.5
2020.0     0.169     16.4
2021.0     0.182     21.2
2022.0     0.191     25.4
2023.0     0.197     29.4
2024.0     0.201     33.1
2025.0     0.204     36.7
2026.0     0.206     40.2
2027.0     0.208     43.7
2028.0     0.209     47.1
2029.0     0.209     50.5
2030.0     0.210     53.9
2031.0     0.211     57.2
2032.0     0.211     60.6
2033.0     0.212     63.9
2034.0     0.213     67.2
2035.0     0.214     70.5
2036.0     0.215     73.7
2037.0     0.216     76.9
2038.0     0.218     80.0
2039.0     0.219     83.1
2040.0     0.221     86.2
2041.0     0.224     89.2
2042.0     0.226     92.1
2043.0     0.228     95.0
2044.0     0.231     97.8
2045.0     0.234    100.6
2046.0     0.237    103.2
2047.0     0.240    105.8
2048.0     0.243    108.4
2049.0     0.247    110.9
2050.0     0.250    113.3
2051.0     0.253    115.6
2052.0     0.257    117.9
2053.0     0.260    120.1
2054.0     0.263    122.3

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.