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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 16:54:51

Orbital Elements for BOV27AB

WDS:	BOV27AB	WDS ID/Discoverer
P:	30.160	Orbital period (years)
a:	0.08084000000000001	Semi-major axis (arcseconds)
i:	47.67	Inclination (degrees)
Ω:	22.77	Longitude of ascending node (degrees)
T:	2011.949	Epoch of periastron passage (year)
e:	0.5562	Eccentricity
ω:	41.51	Longitude of periastron (degrees)
Start-Year:	2010.0	Year
End-Year:	2040.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for BOV27AB

Position:	035202.23+243947.7	Epoch-2000 right ascension and declination
WDS-ID:	03520+2440	WDS designation
Discoverer Code:	BOV27AB	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	.	HD catalog number
Hipparcos number:	.	Hipparcos catalog number
V1:	10.6 k	Magnitude of the primary
V2:	10.9 k	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2014	Date of last observation
Orbit grade:	3	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for BOV27AB

WDS 6th Orbit including measures of BOV27AB

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

Ephemeris of BOV27AB

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.114    226.5
-------------------------
2010.0     0.045    356.8
2011.0     0.040     20.8
2012.0     0.031     55.9
2013.0     0.027    112.7
2014.0     0.040    155.1
2015.0     0.055    175.0
2016.0     0.070    186.3
2017.0     0.081    194.0
2018.0     0.091    199.8
2019.0     0.099    204.7
2020.0     0.105    208.9
2021.0     0.109    212.7
2022.0     0.112    216.3
2023.0     0.113    219.8
2024.0     0.114    223.1
2025.0     0.114    226.5
2026.0     0.112    229.9
2027.0     0.110    233.5
2028.0     0.107    237.2
2029.0     0.103    241.2
2030.0     0.098    245.5
2031.0     0.093    250.3
2032.0     0.087    255.7
2033.0     0.081    261.9
2034.0     0.074    269.2
2035.0     0.068    277.8
2036.0     0.062    288.2
2037.0     0.056    300.8
2038.0     0.052    315.9
2039.0     0.048    333.5

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.