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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 18:51:09

Orbital Elements for HDS2510AB

WDS:	HDS2510AB	WDS ID/Discoverer
P:	41.390	Orbital period (years)
a:	0.132	Semi-major axis (arcseconds)
i:	63.9	Inclination (degrees)
Ω:	62.1	Longitude of ascending node (degrees)
T:	2012.125	Epoch of periastron passage (year)
e:	0.281	Eccentricity
ω:	124.9	Longitude of periastron (degrees)
Start-Year:	2005.0	Year
End-Year:	2045.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HDS2510AB

Position:	174600.87-343508.6	Epoch-2000 right ascension and declination
WDS-ID:	17460-3435	WDS designation
Discoverer Code:	HDS2510AB	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	320448	HD catalog number
Hipparcos number:	86947	Hipparcos catalog number
V1:	9.87	Magnitude of the primary
V2:	10.46	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2022	Date of last observation
Orbit grade:	4	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:		Flags

Double Star Orbit for HDS2510AB

WDS 6th Orbit including measures of HDS2510AB

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

Ephemeris of HDS2510AB

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.070    315.3
-------------------------
2005.0     0.110     76.8
2006.0     0.096     82.8
2007.0     0.080     91.1
2008.0     0.064    103.8
2009.0     0.050    124.4
2010.0     0.043    155.4
2011.0     0.049    186.7
2012.0     0.062    207.9
2013.0     0.077    221.1
2014.0     0.090    230.3
2015.0     0.100    237.4
2016.0     0.106    243.4
2017.0     0.108    249.0
2018.0     0.107    254.5
2019.0     0.104    260.2
2020.0     0.098    266.5
2021.0     0.092    273.6
2022.0     0.085    281.8
2023.0     0.078    291.5
2024.0     0.073    302.7
2025.0     0.070    315.3
2026.0     0.069    328.6
2027.0     0.071    341.6
2028.0     0.076    353.5
2029.0     0.082      3.7
2030.0     0.090     12.4
2031.0     0.099     19.6
2032.0     0.107     25.6
2033.0     0.116     30.7
2034.0     0.124     35.2
2035.0     0.131     39.1
2036.0     0.138     42.7
2037.0     0.143     45.9
2038.0     0.147     48.9
2039.0     0.150     51.8
2040.0     0.151     54.7
2041.0     0.150     57.5
2042.0     0.147     60.4
2043.0     0.143     63.4
2044.0     0.136     66.7

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.