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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 16:34:27

Orbital Elements for YR8

WDS:	YR8	WDS ID/Discoverer
P:	48.900	Orbital period (years)
a:	0.108	Semi-major axis (arcseconds)
i:	101.7	Inclination (degrees)
Ω:	332.94	Longitude of ascending node (degrees)
T:	2055.000	Epoch of periastron passage (year)
e:	0.077	Eccentricity
ω:	82.0	Longitude of periastron (degrees)
Start-Year:	2001.0	Year
End-Year:	2049.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for YR8

Position:	021626.37+043734.0	Epoch-2000 right ascension and declination
WDS-ID:	02164+0438	WDS designation
Discoverer Code:	YR8	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	14031	HD catalog number
Hipparcos number:	10596	Hipparcos catalog number
V1:	8.6	Magnitude of the primary
V2:	9.5	Magnitude of the secondary
Equinox:		Equinox
Date:		Date of last observation
Orbit grade:	5	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:		Flags

Double Star Orbit for YR8

WDS 6th Orbit including measures of YR8

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

Ephemeris of YR8

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.081    140.9
-------------------------
2001.0     0.080    323.7
2002.0     0.071    320.7
2003.0     0.059    316.5
2004.0     0.048    310.4
2005.0     0.036    300.1
2006.0     0.025    280.5
2007.0     0.020    244.2
2008.0     0.025    207.1
2009.0     0.035    186.7
2010.0     0.047    176.1
2011.0     0.059    169.9
2012.0     0.070    165.7
2013.0     0.080    162.6
2014.0     0.089    160.2
2015.0     0.096    158.1
2016.0     0.102    156.4
2017.0     0.106    154.8
2018.0     0.108    153.3
2019.0     0.109    151.8
2020.0     0.108    150.3
2021.0     0.105    148.8
2022.0     0.101    147.2
2023.0     0.095    145.4
2024.0     0.089    143.3
2025.0     0.081    140.9
2026.0     0.072    137.9
2027.0     0.062    134.0
2028.0     0.052    128.6
2029.0     0.042    120.7
2030.0     0.033    108.0
2031.0     0.026     86.9
2032.0     0.024     57.1
2033.0     0.028     29.8
2034.0     0.036     12.2
2035.0     0.046      1.6
2036.0     0.056    354.8
2037.0     0.066    350.0
2038.0     0.075    346.5
2039.0     0.083    343.7
2040.0     0.091    341.4
2041.0     0.097    339.5
2042.0     0.102    337.7
2043.0     0.105    336.1
2044.0     0.106    334.5
2045.0     0.106    333.0
2046.0     0.104    331.4
2047.0     0.101    329.8
2048.0     0.095    328.0

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.