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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 18:58:05

Orbital Elements for HDS2623AA,AB

WDS:	HDS2623AA,AB	WDS ID/Discoverer
P:	55.000	Orbital period (years)
a:	0.183	Semi-major axis (arcseconds)
i:	81.7	Inclination (degrees)
Ω:	19.6	Longitude of ascending node (degrees)
T:	2024.105	Epoch of periastron passage (year)
e:	0.65	Eccentricity
ω:	175.8	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 HDS2623AA,AB

Position:	183032.26-105150.4	Epoch-2000 right ascension and declination
WDS-ID:	18305-1052	WDS designation
Discoverer Code:	HDS2623AA,AB	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	170566	HD catalog number
Hipparcos number:	90717	Hipparcos catalog number
V1:	8.27	Magnitude of the primary
V2:	9.94	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 HDS2623AA,AB

WDS 6th Orbit including measures of HDS2623AA,AB

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

Ephemeris of HDS2623AA,AB

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.060    204.4
-------------------------
1998.0     0.301     19.4
1999.0     0.300     19.6
2000.0     0.298     19.9
2001.0     0.296     20.2
2002.0     0.292     20.4
2003.0     0.288     20.7
2004.0     0.282     21.0
2005.0     0.276     21.3
2006.0     0.268     21.7
2007.0     0.260     22.0
2008.0     0.250     22.4
2009.0     0.240     22.8
2010.0     0.228     23.2
2011.0     0.215     23.7
2012.0     0.201     24.3
2013.0     0.186     24.9
2014.0     0.169     25.7
2015.0     0.151     26.6
2016.0     0.131     27.8
2017.0     0.110     29.5
2018.0     0.087     32.0
2019.0     0.062     36.5
2020.0     0.037     47.0
2021.0     0.015     94.3
2022.0     0.027    173.7
2023.0     0.050    191.1
2024.0     0.063    198.4
2025.0     0.060    204.4
2026.0     0.042    213.7
2027.0     0.022    240.3
2028.0     0.019    319.2
2029.0     0.040    351.6
2030.0     0.063      1.1
2031.0     0.086      5.6
2032.0     0.107      8.2
2033.0     0.127      9.9
2034.0     0.146     11.2
2035.0     0.163     12.2
2036.0     0.180     13.0
2037.0     0.195     13.7
2038.0     0.209     14.3
2039.0     0.222     14.8
2040.0     0.233     15.3
2041.0     0.244     15.7
2042.0     0.254     16.1
2043.0     0.263     16.5
2044.0     0.271     16.8
2045.0     0.278     17.1
2046.0     0.284     17.4
2047.0     0.289     17.7
2048.0     0.293     18.0
2049.0     0.296     18.3
2050.0     0.299     18.6
2051.0     0.301     18.8

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.