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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 16:50:31

Orbital Elements for LDS6150A

WDS:	LDS6150A	WDS ID/Discoverer
P:	8.458	Orbital period (years)
a:	0.0219	Semi-major axis (arcseconds)
i:	137.2	Inclination (degrees)
Ω:	81.0	Longitude of ascending node (degrees)
T:	1999.030	Epoch of periastron passage (year)
e:	0.86	Eccentricity
ω:	71.7	Longitude of periastron (degrees)
Start-Year:	2021.0	Year
End-Year:	2029.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for LDS6150A

Position:	031827.14+151041.1	Epoch-2000 right ascension and declination
WDS-ID:	03185+1511	WDS designation
Discoverer Code:	LDS6150A	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	20512	HD catalog number
Hipparcos number:	15394	Hipparcos catalog number
V1:	7.41	Magnitude of the primary
V2:	.	Magnitude of the secondary
Equinox:		Equinox
Date:	1992	Date of last observation
Orbit grade:	9	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for LDS6150A

WDS 6th Orbit including measures of LDS6150A

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

Ephemeris of LDS6150A

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.015    237.6
-------------------------
2021.0     0.030    188.5
2022.0     0.026    178.8
2023.0     0.020    164.6
2024.0     0.010    129.9
2025.0     0.015    237.6
2026.0     0.025    218.6
2027.0     0.029    208.4
2028.0     0.031    200.2

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.