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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 17:32:34

Orbital Elements for HDS1007

WDS:	HDS1007	WDS ID/Discoverer
P:	28.220	Orbital period (years)
a:	0.228	Semi-major axis (arcseconds)
i:	81.9	Inclination (degrees)
Ω:	345.4	Longitude of ascending node (degrees)
T:	2014.510	Epoch of periastron passage (year)
e:	0.319	Eccentricity
ω:	126.5	Longitude of periastron (degrees)
Start-Year:	2011.0	Year
End-Year:	2039.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HDS1007

Position:	071644.54+160849.4	Epoch-2000 right ascension and declination
WDS-ID:	07167+1609	WDS designation
Discoverer Code:	HDS1007	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	56200	HD catalog number
Hipparcos number:	35219	Hipparcos catalog number
V1:	7.10	Magnitude of the primary
V2:	8.56	Magnitude of the secondary
Equinox:		Equinox
Date:	2018	Date of last observation
Orbit grade:	3	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:		Flags

Double Star Orbit for HDS1007

WDS 6th Orbit including measures of HDS1007

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

Ephemeris of HDS1007

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.066    308.3
-------------------------
2011.0     0.130    354.3
2012.0     0.074      3.5
2013.0     0.023     65.0
2014.0     0.065    147.3
2015.0     0.119    158.5
2016.0     0.157    163.1
2017.0     0.175    166.2
2018.0     0.175    169.1
2019.0     0.161    172.2
2020.0     0.137    176.2
2021.0     0.107    182.2
2022.0     0.074    193.4
2023.0     0.046    220.1
2024.0     0.041    274.0
2025.0     0.066    308.3
2026.0     0.099    322.0
2027.0     0.132    328.7
2028.0     0.164    332.8
2029.0     0.193    335.6
2030.0     0.217    337.7
2031.0     0.238    339.4
2032.0     0.253    340.9
2033.0     0.262    342.2
2034.0     0.264    343.5
2035.0     0.258    344.8
2036.0     0.244    346.2
2037.0     0.220    347.8
2038.0     0.186    349.9

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.