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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 16:58:02

Orbital Elements for HMM2AA1,2

WDS:	HMM2AA1,2	WDS ID/Discoverer
P:	0.014	Orbital period (years)
a:	0.0019019999999999998	Semi-major axis (arcseconds)
i:	146.2	Inclination (degrees)
Ω:	72.0	Longitude of ascending node (degrees)
T:	2007.839	Epoch of periastron passage (year)
e:	0.0	Eccentricity
ω:	90.0	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 HMM2AA1,2

Position:	041753.62-334754.0	Epoch-2000 right ascension and declination
WDS-ID:	04179-3348	WDS designation
Discoverer Code:	HMM2AA1,2	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	27376	HD catalog number
Hipparcos number:	20042	Hipparcos catalog number
V1:	4.60k	Magnitude of the primary
V2:	4.65k	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2014	Date of last observation
Orbit grade:	4	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for HMM2AA1,2

WDS 6th Orbit including measures of HMM2AA1,2

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

Ephemeris of HMM2AA1,2

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.002    346.3
-------------------------

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.