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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 18:43:22

Orbital Elements for BD-024304

WDS:	BD-024304	WDS ID/Discoverer
P:	5.027	Orbital period (years)
a:	0.011699999999999999	Semi-major axis (arcseconds)
i:	148.8	Inclination (degrees)
Ω:	293.9	Longitude of ascending node (degrees)
T:	2002.834	Epoch of periastron passage (year)
e:	0.165	Eccentricity
ω:	179.1	Longitude of periastron (degrees)
Start-Year:	2023.0	Year
End-Year:	2027.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for BD-024304

Position:	170714.36-025200.3	Epoch-2000 right ascension and declination
WDS-ID:	17072-0252	WDS designation
Discoverer Code:	BD-024304	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	154697	HD catalog number
Hipparcos number:	83770	Hipparcos catalog number
V1:	7.83	Magnitude of the primary
V2:	.	Magnitude of the secondary
Equinox:		Equinox
Date:		Date of last observation
Orbit grade:	9	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:		Flags

Double Star Orbit for BD-024304

WDS 6th Orbit including measures of BD-024304

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

Ephemeris of BD-024304

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.013    315.4
-------------------------
2023.0     0.010    109.5
2024.0     0.010     19.3
2025.0     0.013    315.4
2026.0     0.013    269.4

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.