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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 18:01:58

Orbital Elements for A676BC

WDS:	A676BC	WDS ID/Discoverer
P:	23.230	Orbital period (years)
a:	0.343	Semi-major axis (arcseconds)
i:	62.6	Inclination (degrees)
Ω:	71.7	Longitude of ascending node (degrees)
T:	1995.220	Epoch of periastron passage (year)
e:	0.119	Eccentricity
ω:	111.2	Longitude of periastron (degrees)
Start-Year:	2014.0	Year
End-Year:	2036.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for A676BC

Position:	110440.97-041324.6	Epoch-2000 right ascension and declination
WDS-ID:	11047-0413	WDS designation
Discoverer Code:	A676BC	Discover designation and components
ADS number:	8048	Aitken Double Star catalog
HD number:	.	HD catalog number
Hipparcos number:	54155	Hipparcos catalog number
V1:	10.75	Magnitude of the primary
V2:	11.09	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	1997	Date of last observation
Orbit grade:	2	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for A676BC

WDS 6th Orbit including measures of A676BC

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

Ephemeris of A676BC

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.275    276.9
-------------------------
2014.0     0.301     86.0
2015.0     0.248     97.0
2016.0     0.189    114.8
2017.0     0.145    146.2
2018.0     0.151    187.0
2019.0     0.200    215.4
2020.0     0.256    231.7
2021.0     0.300    242.4
2022.0     0.323    250.9
2023.0     0.325    258.8
2024.0     0.307    267.1
2025.0     0.275    276.9
2026.0     0.235    289.7
2027.0     0.198    307.8
2028.0     0.176    332.2
2029.0     0.182    358.8
2030.0     0.213     20.6
2031.0     0.254     36.1
2032.0     0.296     47.1
2033.0     0.330     55.6
2034.0     0.351     62.8
2035.0     0.356     69.4

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.