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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 16:54:35

Orbital Elements for STT65

WDS:	STT65	WDS ID/Discoverer
P:	61.200	Orbital period (years)
a:	0.442	Semi-major axis (arcseconds)
i:	84.7	Inclination (degrees)
Ω:	26.4	Longitude of ascending node (degrees)
T:	1998.300	Epoch of periastron passage (year)
e:	0.628	Eccentricity
ω:	340.3	Longitude of periastron (degrees)
Start-Year:	1995.0	Year
End-Year:	2055.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for STT65

Position:	035018.91+253446.7	Epoch-2000 right ascension and declination
WDS-ID:	03503+2535	WDS designation
Discoverer Code:	STT65	Discover designation and components
ADS number:	2799	Aitken Double Star catalog
HD number:	23985	HD catalog number
Hipparcos number:	17954	Hipparcos catalog number
V1:	5.73	Magnitude of the primary
V2:	6.52	Magnitude of the secondary
Equinox:		Equinox
Date:	2008	Date of last observation
Orbit grade:	2	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for STT65

WDS 6th Orbit including measures of STT65

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

Ephemeris of STT65

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.637    203.8
-------------------------
1995.0     0.052    231.5
1996.0     0.030    346.4
1997.0     0.092     17.3
1998.0     0.144     23.4
1999.0     0.169     26.7
2000.0     0.164     29.6
2001.0     0.139     33.1
2002.0     0.102     38.9
2003.0     0.062     51.9
2004.0     0.032     97.1
2005.0     0.049    162.7
2006.0     0.088    182.3
2007.0     0.130    189.5
2008.0     0.172    193.2
2009.0     0.212    195.5
2010.0     0.251    197.0
2011.0     0.288    198.1
2012.0     0.324    199.0
2013.0     0.358    199.7
2014.0     0.390    200.3
2015.0     0.421    200.8
2016.0     0.450    201.3
2017.0     0.477    201.7
2018.0     0.503    202.0
2019.0     0.527    202.3
2020.0     0.549    202.6
2021.0     0.570    202.9
2022.0     0.589    203.1
2023.0     0.607    203.3
2024.0     0.623    203.6
2025.0     0.637    203.8
2026.0     0.650    204.0
2027.0     0.661    204.2
2028.0     0.671    204.3
2029.0     0.679    204.5
2030.0     0.685    204.7
2031.0     0.689    204.9
2032.0     0.692    205.0
2033.0     0.693    205.2
2034.0     0.693    205.4
2035.0     0.690    205.6
2036.0     0.686    205.7
2037.0     0.680    205.9
2038.0     0.672    206.1
2039.0     0.662    206.3
2040.0     0.650    206.5
2041.0     0.636    206.7
2042.0     0.619    206.9
2043.0     0.600    207.1
2044.0     0.579    207.3
2045.0     0.555    207.6
2046.0     0.529    207.9
2047.0     0.499    208.2
2048.0     0.467    208.5
2049.0     0.431    209.0
2050.0     0.391    209.4
2051.0     0.348    210.1
2052.0     0.300    210.8
2053.0     0.248    211.9
2054.0     0.192    213.7

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.