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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 19:19:36

Orbital Elements for BAG29

WDS:	BAG29	WDS ID/Discoverer
P:	12.880	Orbital period (years)
a:	0.1842	Semi-major axis (arcseconds)
i:	29.6	Inclination (degrees)
Ω:	146.7	Longitude of ascending node (degrees)
T:	2006.145	Epoch of periastron passage (year)
e:	0.454	Eccentricity
ω:	152.5	Longitude of periastron (degrees)
Start-Year:	2019.0	Year
End-Year:	2031.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for BAG29

Position:	211054.76+292523.0	Epoch-2000 right ascension and declination
WDS-ID:	21109+2925	WDS designation
Discoverer Code:	BAG29	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	.	HD catalog number
Hipparcos number:	104565	Hipparcos catalog number
V1:	11.06	Magnitude of the primary
V2:	11.5	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2008	Date of last observation
Orbit grade:	3	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for BAG29

WDS 6th Orbit including measures of BAG29

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

Ephemeris of BAG29

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.257    117.3
-------------------------
2019.0     0.098    300.4
2020.0     0.119      4.6
2021.0     0.149     46.5
2022.0     0.184     73.2
2023.0     0.216     91.5
2024.0     0.241    105.5
2025.0     0.257    117.3
2026.0     0.262    128.1
2027.0     0.256    138.9
2028.0     0.237    151.0
2029.0     0.204    166.0
2030.0     0.157    188.7

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.