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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 19:01:22

Orbital Elements for HR7135

WDS:	HR7135	WDS ID/Discoverer
P:	8.197	Orbital period (years)
a:	0.026600000000000002	Semi-major axis (arcseconds)
i:	31.9	Inclination (degrees)
Ω:	12.6	Longitude of ascending node (degrees)
T:	1980.101	Epoch of periastron passage (year)
e:	0.24	Eccentricity
ω:	35.0	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 HR7135

Position:	185527.44+063655.8	Epoch-2000 right ascension and declination
WDS-ID:	18555+0637	WDS designation
Discoverer Code:	HR7135	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	175515	HD catalog number
Hipparcos number:	92872	Hipparcos catalog number
V1:	5.58	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:		Flags

Double Star Orbit for HR7135

WDS 6th Orbit including measures of HR7135

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

Ephemeris of HR7135

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.032    218.6
-------------------------
2021.0     0.020     37.4
2022.0     0.019    111.3
2023.0     0.026    163.0
2024.0     0.031    193.4
2025.0     0.032    218.6
2026.0     0.029    246.2
2027.0     0.025    282.4
2028.0     0.022    329.4

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.