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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 16:26:15

Orbital Elements for A1516AB

WDS:	A1516AB	WDS ID/Discoverer
P:	33.510	Orbital period (years)
a:	0.123	Semi-major axis (arcseconds)
i:	3.3	Inclination (degrees)
Ω:	3.1	Longitude of ascending node (degrees)
T:	1998.290	Epoch of periastron passage (year)
e:	0.241	Eccentricity
ω:	208.4	Longitude of periastron (degrees)
Start-Year:	2009.0	Year
End-Year:	2041.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for A1516AB

Position:	010709.16+383901.7	Epoch-2000 right ascension and declination
WDS-ID:	01072+3839	WDS designation
Discoverer Code:	A1516AB	Discover designation and components
ADS number:	918	Aitken Double Star catalog
HD number:	6586	HD catalog number
Hipparcos number:	5249	Hipparcos catalog number
V1:	8.60	Magnitude of the primary
V2:	8.29	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2014	Date of last observation
Orbit grade:	2	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for A1516AB

WDS 6th Orbit including measures of A1516AB

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

Ephemeris of A1516AB

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.121    110.7
-------------------------
2009.0     0.140    348.2
2010.0     0.144    356.0
2011.0     0.147      3.4
2012.0     0.150     10.6
2013.0     0.151     17.5
2014.0     0.152     24.4
2015.0     0.153     31.2
2016.0     0.152     37.9
2017.0     0.151     44.8
2018.0     0.150     51.7
2019.0     0.147     58.9
2020.0     0.144     66.3
2021.0     0.141     74.0
2022.0     0.136     82.2
2023.0     0.132     91.0
2024.0     0.127    100.4
2025.0     0.121    110.7
2026.0     0.116    121.9
2027.0     0.110    134.3
2028.0     0.105    148.0
2029.0     0.100    163.1
2030.0     0.096    179.6
2031.0     0.094    197.1
2032.0     0.093    215.1
2033.0     0.095    233.0
2034.0     0.097    250.1
2035.0     0.101    266.1
2036.0     0.107    280.7
2037.0     0.112    293.9
2038.0     0.118    305.8
2039.0     0.123    316.6
2040.0     0.129    326.5

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.