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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 17:59:53

Orbital Elements for SNA15AA,AC

WDS:	SNA15AA,AC	WDS ID/Discoverer
P:	40.324	Orbital period (years)
a:	0.0214	Semi-major axis (arcseconds)
i:	92.1	Inclination (degrees)
Ω:	326.7	Longitude of ascending node (degrees)
T:	2006.008	Epoch of periastron passage (year)
e:	0.539	Eccentricity
ω:	295.7	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 SNA15AA,AC

Position:	104422.92-595936.0	Epoch-2000 right ascension and declination
WDS-ID:	10444-6000	WDS designation
Discoverer Code:	SNA15AA,AC	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	93206	HD catalog number
Hipparcos number:	52526	Hipparcos catalog number
V1:	5.9	Magnitude of the primary
V2:	6.2	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2017	Date of last observation
Orbit grade:	5	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for SNA15AA,AC

WDS 6th Orbit including measures of SNA15AA,AC

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

Ephemeris of SNA15AA,AC

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.012    151.9
-------------------------
2005.0     0.002    132.9
2006.0     0.004    331.1
2007.0     0.009    327.9
2008.0     0.012    326.8
2009.0     0.013    326.0
2010.0     0.014    325.4
2011.0     0.013    324.7
2012.0     0.012    323.9
2013.0     0.011    322.9
2014.0     0.009    321.6
2015.0     0.007    319.7
2016.0     0.005    316.5
2017.0     0.003    309.8
2018.0     0.002    287.8
2019.0     0.001    203.2
2020.0     0.003    168.8
2021.0     0.005    160.1
2022.0     0.007    156.3
2023.0     0.009    154.2
2024.0     0.011    152.9
2025.0     0.012    151.9
2026.0     0.014    151.2
2027.0     0.016    150.6
2028.0     0.017    150.1
2029.0     0.019    149.7
2030.0     0.020    149.4
2031.0     0.021    149.1
2032.0     0.022    148.8
2033.0     0.023    148.5
2034.0     0.023    148.3
2035.0     0.024    148.1
2036.0     0.024    147.8
2037.0     0.024    147.6
2038.0     0.023    147.4
2039.0     0.022    147.1
2040.0     0.021    146.9
2041.0     0.019    146.6
2042.0     0.016    146.1
2043.0     0.013    145.6
2044.0     0.009    144.5

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.