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

Double Star Calculator - Orbit

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

Orbital Elements for YSC135

WDS:	YSC135	WDS ID/Discoverer
P:	1.188	Orbital period (years)
a:	0.04104	Semi-major axis (arcseconds)
i:	116.4	Inclination (degrees)
Ω:	337.59	Longitude of ascending node (degrees)
T:	2015.304	Epoch of periastron passage (year)
e:	0.2155	Eccentricity
ω:	82.92	Longitude of periastron (degrees)
Start-Year:	2025.0	Year
End-Year:	2025.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for YSC135

Position:	193759.29+335335.3	Epoch-2000 right ascension and declination
WDS-ID:	19380+3353	WDS designation
Discoverer Code:	YSC135	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	185501	HD catalog number
Hipparcos number:	96576	Hipparcos catalog number
V1:	8.0	Magnitude of the primary
V2:	8.5	Magnitude of the secondary
Equinox:		Equinox
Date:		Date of last observation
Orbit grade:	2	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:		Flags

Double Star Orbit for YSC135

WDS 6th Orbit including measures of YSC135

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

Ephemeris of YSC135

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.037    164.6
-------------------------

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.