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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 18:37:27

Orbital Elements for SEE272

WDS:	SEE272	WDS ID/Discoverer
P:	32.480	Orbital period (years)
a:	0.144	Semi-major axis (arcseconds)
i:	33.0	Inclination (degrees)
Ω:	123.1	Longitude of ascending node (degrees)
T:	2011.040	Epoch of periastron passage (year)
e:	0.956	Eccentricity
ω:	328.9	Longitude of periastron (degrees)
Start-Year:	2009.0	Year
End-Year:	2041.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for SEE272

Position:	161917.22-352926.9	Epoch-2000 right ascension and declination
WDS-ID:	16193-3529	WDS designation
Discoverer Code:	SEE272	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	146745	HD catalog number
Hipparcos number:	79962	Hipparcos catalog number
V1:	7.40	Magnitude of the primary
V2:	7.54	Magnitude of the secondary
Equinox:		Equinox
Date:	2021	Date of last observation
Orbit grade:	3	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:		Flags

Double Star Orbit for SEE272

WDS 6th Orbit including measures of SEE272

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

Ephemeris of SEE272

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.266    274.5
-------------------------
2009.0     0.110    295.3
2010.0     0.071    302.4
2011.0     0.007     36.0
2012.0     0.059    244.9
2013.0     0.096    254.6
2014.0     0.126    259.2
2015.0     0.150    262.2
2016.0     0.171    264.4
2017.0     0.189    266.1
2018.0     0.205    267.6
2019.0     0.219    268.8
2020.0     0.230    270.0
2021.0     0.240    271.0
2022.0     0.249    271.9
2023.0     0.256    272.8
2024.0     0.261    273.7
2025.0     0.266    274.5
2026.0     0.268    275.3
2027.0     0.270    276.0
2028.0     0.270    276.8
2029.0     0.269    277.6
2030.0     0.267    278.4
2031.0     0.263    279.2
2032.0     0.258    280.0
2033.0     0.252    280.9
2034.0     0.243    281.8
2035.0     0.234    282.8
2036.0     0.222    283.9
2037.0     0.208    285.1
2038.0     0.192    286.5
2039.0     0.173    288.2
2040.0     0.151    290.4

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.