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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 18:09:21

Orbital Elements for HDS1716

WDS:	HDS1716	WDS ID/Discoverer
P:	61.500	Orbital period (years)
a:	0.149	Semi-major axis (arcseconds)
i:	47.5	Inclination (degrees)
Ω:	56.1	Longitude of ascending node (degrees)
T:	2018.800	Epoch of periastron passage (year)
e:	0.508	Eccentricity
ω:	348.4	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 HDS1716

Position:	120938.20-672714.9	Epoch-2000 right ascension and declination
WDS-ID:	12096-6727	WDS designation
Discoverer Code:	HDS1716	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	105615	HD catalog number
Hipparcos number:	59281	Hipparcos catalog number
V1:	7.59	Magnitude of the primary
V2:	10.16	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2022	Date of last observation
Orbit grade:	3	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:		Flags

Double Star Orbit for HDS1716

WDS 6th Orbit including measures of HDS1716

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

Ephemeris of HDS1716

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.078    133.3
-------------------------
1995.0     0.216    238.9
1996.0     0.213    240.6
1997.0     0.209    242.3
1998.0     0.205    244.1
1999.0     0.200    245.9
2000.0     0.195    247.8
2001.0     0.189    249.9
2002.0     0.182    252.1
2003.0     0.175    254.5
2004.0     0.167    257.1
2005.0     0.158    259.9
2006.0     0.149    263.1
2007.0     0.139    266.8
2008.0     0.129    271.0
2009.0     0.118    275.9
2010.0     0.107    281.9
2011.0     0.096    289.3
2012.0     0.085    298.5
2013.0     0.076    310.2
2014.0     0.068    324.9
2015.0     0.064    342.5
2016.0     0.063      1.4
2017.0     0.066     19.7
2018.0     0.070     36.3
2019.0     0.073     51.1
2020.0     0.075     64.9
2021.0     0.074     78.5
2022.0     0.074     92.3
2023.0     0.073    106.3
2024.0     0.075    120.2
2025.0     0.078    133.3
2026.0     0.083    145.1
2027.0     0.089    155.4
2028.0     0.097    164.2
2029.0     0.105    171.6
2030.0     0.114    178.0
2031.0     0.123    183.4
2032.0     0.131    188.1
2033.0     0.140    192.2
2034.0     0.148    195.9
2035.0     0.156    199.1
2036.0     0.164    202.1
2037.0     0.171    204.8
2038.0     0.178    207.3
2039.0     0.184    209.6
2040.0     0.190    211.7
2041.0     0.196    213.8
2042.0     0.201    215.7
2043.0     0.205    217.5
2044.0     0.209    219.3
2045.0     0.213    221.0
2046.0     0.216    222.6
2047.0     0.218    224.2
2048.0     0.220    225.8
2049.0     0.222    227.4
2050.0     0.223    228.9
2051.0     0.223    230.4
2052.0     0.223    231.9
2053.0     0.222    233.5
2054.0     0.221    235.0

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.