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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 19:10:57

Orbital Elements for BD+273593

WDS:	BD+273593	WDS ID/Discoverer
P:	3.138	Orbital period (years)
a:	0.0018	Semi-major axis (arcseconds)
i:	4.3	Inclination (degrees)
Ω:	61.0	Longitude of ascending node (degrees)
T:	1999.155	Epoch of periastron passage (year)
e:	0.5	Eccentricity
ω:	100.7	Longitude of periastron (degrees)
Start-Year:	2024.0	Year
End-Year:	2026.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for BD+273593

Position:	200300.77+281824.6	Epoch-2000 right ascension and declination
WDS-ID:	20030+2818	WDS designation
Discoverer Code:	BD+273593	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	190228	HD catalog number
Hipparcos number:	98714	Hipparcos catalog number
V1:	7.31	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:	n	Flags

Double Star Orbit for BD+273593

WDS 6th Orbit including measures of BD+273593

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

Ephemeris of BD+273593

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.002    299.0
-------------------------
2024.0     0.001     81.3
2025.0     0.002    299.0

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.