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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 16:45:51

Orbital Elements for A2030

WDS:	A2030	WDS ID/Discoverer
P:	54.455	Orbital period (years)
a:	0.261	Semi-major axis (arcseconds)
i:	148.7	Inclination (degrees)
Ω:	53.7	Longitude of ascending node (degrees)
T:	1943.408	Epoch of periastron passage (year)
e:	0.48	Eccentricity
ω:	277.0	Longitude of periastron (degrees)
Start-Year:	1998.0	Year
End-Year:	2052.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for A2030

Position:	030936.30+051210.6	Epoch-2000 right ascension and declination
WDS-ID:	03096+0512	WDS designation
Discoverer Code:	A2030	Discover designation and components
ADS number:	2373	Aitken Double Star catalog
HD number:	19620	HD catalog number
Hipparcos number:	14676	Hipparcos catalog number
V1:	8.58	Magnitude of the primary
V2:	9.20	Magnitude of the secondary
Equinox:	1900	Equinox
Date:	1974	Date of last observation
Orbit grade:	3	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for A2030

WDS 6th Orbit including measures of A2030

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

Ephemeris of A2030

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.331    315.8
-------------------------
1998.0     0.117    132.1
1999.0     0.125    108.7
2000.0     0.140     89.3
2001.0     0.158     74.0
2002.0     0.176     61.9
2003.0     0.193     52.0
2004.0     0.208     43.6
2005.0     0.222     36.3
2006.0     0.234     29.8
2007.0     0.245     23.9
2008.0     0.255     18.5
2009.0     0.265     13.5
2010.0     0.273      8.9
2011.0     0.280      4.5
2012.0     0.287      0.3
2013.0     0.293    356.2
2014.0     0.299    352.4
2015.0     0.304    348.7
2016.0     0.308    345.1
2017.0     0.313    341.6
2018.0     0.316    338.2
2019.0     0.320    334.8
2020.0     0.322    331.5
2021.0     0.325    328.3
2022.0     0.327    325.1
2023.0     0.329    322.0
2024.0     0.330    318.9
2025.0     0.331    315.8
2026.0     0.331    312.7
2027.0     0.332    309.7
2028.0     0.331    306.6
2029.0     0.330    303.5
2030.0     0.329    300.4
2031.0     0.328    297.3
2032.0     0.325    294.1
2033.0     0.323    290.9
2034.0     0.319    287.6
2035.0     0.315    284.2
2036.0     0.311    280.8
2037.0     0.305    277.3
2038.0     0.299    273.6
2039.0     0.292    269.7
2040.0     0.285    265.7
2041.0     0.276    261.4
2042.0     0.266    256.8
2043.0     0.255    251.8
2044.0     0.242    246.3
2045.0     0.228    240.2
2046.0     0.212    233.2
2047.0     0.195    225.1
2048.0     0.176    215.2
2049.0     0.157    203.0
2050.0     0.138    187.4
2051.0     0.123    167.4

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.