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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 18:22:59

Orbital Elements for IOTVIR

WDS:	IOTVIR	WDS ID/Discoverer
P:	55.000	Orbital period (years)
a:	0.83	Semi-major axis (arcseconds)
i:	60.0	Inclination (degrees)
Ω:	3.0	Longitude of ascending node (degrees)
T:	1950.700	Epoch of periastron passage (year)
e:	0.1	Eccentricity
ω:	336.0	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 IOTVIR

Position:	141600.86-060001.9	Epoch-2000 right ascension and declination
WDS-ID:	14160-0600	WDS designation
Discoverer Code:	IOTVIR	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	124850	HD catalog number
Hipparcos number:	69701	Hipparcos catalog number
V1:	4.1	Magnitude of the primary
V2:	8. >	Magnitude of the secondary
Equinox:		Equinox
Date:		Date of last observation
Orbit grade:	9	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:		Flags

Double Star Orbit for IOTVIR

WDS 6th Orbit including measures of IOTVIR

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

Ephemeris of IOTVIR

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.520    130.4
-------------------------
1998.0     0.398    285.0
1999.0     0.418    298.6
2000.0     0.452    310.5
2001.0     0.495    320.6
2002.0     0.543    328.9
2003.0     0.591    335.9
2004.0     0.636    341.9
2005.0     0.675    347.1
2006.0     0.708    351.8
2007.0     0.733    356.1
2008.0     0.748      0.2
2009.0     0.754      4.2
2010.0     0.750      8.1
2011.0     0.737     12.2
2012.0     0.716     16.4
2013.0     0.687     21.0
2014.0     0.652     26.0
2015.0     0.613     31.6
2016.0     0.572     38.0
2017.0     0.530     45.4
2018.0     0.492     54.0
2019.0     0.460     64.0
2020.0     0.437     75.2
2021.0     0.428     87.2
2022.0     0.433     99.4
2023.0     0.451    111.0
2024.0     0.481    121.4
2025.0     0.520    130.4
2026.0     0.563    138.0
2027.0     0.610    144.6
2028.0     0.657    150.2
2029.0     0.702    155.0
2030.0     0.746    159.3
2031.0     0.785    163.1
2032.0     0.820    166.6
2033.0     0.849    169.8
2034.0     0.873    172.9
2035.0     0.890    175.7
2036.0     0.901    178.5
2037.0     0.905    181.3
2038.0     0.902    184.0
2039.0     0.892    186.8
2040.0     0.875    189.7
2041.0     0.851    192.7
2042.0     0.821    195.9
2043.0     0.784    199.4
2044.0     0.742    203.2
2045.0     0.695    207.6
2046.0     0.644    212.6
2047.0     0.591    218.5
2048.0     0.538    225.5
2049.0     0.488    234.1
2050.0     0.445    244.5
2051.0     0.412    256.8

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.