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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 18:41:11

Orbital Elements for B2397

WDS:	B2397	WDS ID/Discoverer
P:	67.800	Orbital period (years)
a:	0.155	Semi-major axis (arcseconds)
i:	120.0	Inclination (degrees)
Ω:	19.3	Longitude of ascending node (degrees)
T:	2022.560	Epoch of periastron passage (year)
e:	0.09	Eccentricity
ω:	81.6	Longitude of periastron (degrees)
Start-Year:	1992.0	Year
End-Year:	2058.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for B2397

Position:	165121.52-245003.0	Epoch-2000 right ascension and declination
WDS-ID:	16514-2450	WDS designation
Discoverer Code:	B2397	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	151902	HD catalog number
Hipparcos number:	82474	Hipparcos catalog number
V1:	8.2	Magnitude of the primary
V2:	8.3	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2022	Date of last observation
Orbit grade:	3	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:		Flags

Double Star Orbit for B2397

WDS 6th Orbit including measures of B2397

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

Ephemeris of B2397

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.072    275.2
-------------------------
1992.0     0.086     96.5
1993.0     0.088     88.1
1994.0     0.092     80.3
1995.0     0.097     73.2
1996.0     0.103     66.8
1997.0     0.108     61.1
1998.0     0.114     56.0
1999.0     0.121     51.4
2000.0     0.126     47.2
2001.0     0.132     43.4
2002.0     0.137     39.9
2003.0     0.142     36.6
2004.0     0.146     33.6
2005.0     0.149     30.6
2006.0     0.151     27.8
2007.0     0.152     25.0
2008.0     0.153     22.3
2009.0     0.152     19.6
2010.0     0.150     16.8
2011.0     0.147     13.9
2012.0     0.144     10.9
2013.0     0.139      7.7
2014.0     0.133      4.3
2015.0     0.127      0.5
2016.0     0.119    356.3
2017.0     0.111    351.6
2018.0     0.103    346.0
2019.0     0.095    339.6
2020.0     0.087    331.9
2021.0     0.080    322.9
2022.0     0.075    312.3
2023.0     0.072    300.4
2024.0     0.071    287.7
2025.0     0.072    275.2
2026.0     0.077    263.7
2027.0     0.083    253.6
2028.0     0.090    245.0
2029.0     0.098    237.8
2030.0     0.106    231.7
2031.0     0.114    226.4
2032.0     0.122    221.9
2033.0     0.130    217.9
2034.0     0.136    214.3
2035.0     0.142    211.0
2036.0     0.147    208.0
2037.0     0.151    205.1
2038.0     0.154    202.4
2039.0     0.156    199.7
2040.0     0.157    197.1
2041.0     0.156    194.5
2042.0     0.156    191.9
2043.0     0.154    189.2
2044.0     0.151    186.5
2045.0     0.147    183.7
2046.0     0.143    180.6
2047.0     0.138    177.4
2048.0     0.133    174.0
2049.0     0.127    170.2
2050.0     0.121    166.1
2051.0     0.115    161.5
2052.0     0.109    156.5
2053.0     0.103    150.8
2054.0     0.097    144.4
2055.0     0.092    137.3
2056.0     0.089    129.5
2057.0     0.086    121.2

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.