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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 17:41:29

Orbital Elements for B1624

WDS:	B1624	WDS ID/Discoverer
P:	74.050	Orbital period (years)
a:	0.474	Semi-major axis (arcseconds)
i:	71.4	Inclination (degrees)
Ω:	89.7	Longitude of ascending node (degrees)
T:	1995.690	Epoch of periastron passage (year)
e:	0.24	Eccentricity
ω:	0.1	Longitude of periastron (degrees)
Start-Year:	1988.0	Year
End-Year:	2062.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for B1624

Position:	084206.65-524523.3	Epoch-2000 right ascension and declination
WDS-ID:	08421-5245	WDS designation
Discoverer Code:	B1624	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	74497	HD catalog number
Hipparcos number:	42695	Hipparcos catalog number
V1:	8.22	Magnitude of the primary
V2:	9.62	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 B1624

WDS 6th Orbit including measures of B1624

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

Ephemeris of B1624

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.528    261.6
-------------------------
1988.0     0.233     62.1
1989.0     0.260     67.7
1990.0     0.285     72.2
1991.0     0.307     76.1
1992.0     0.327     79.5
1993.0     0.342     82.5
1994.0     0.353     85.3
1995.0     0.359     87.9
1996.0     0.360     90.5
1997.0     0.356     93.2
1998.0     0.347     95.9
1999.0     0.333     98.8
2000.0     0.315    102.1
2001.0     0.293    105.7
2002.0     0.269    110.0
2003.0     0.243    115.2
2004.0     0.216    121.7
2005.0     0.190    129.9
2006.0     0.168    140.5
2007.0     0.151    154.0
2008.0     0.142    170.0
2009.0     0.145    186.6
2010.0     0.157    201.6
2011.0     0.177    213.8
2012.0     0.202    223.3
2013.0     0.230    230.6
2014.0     0.260    236.2
2015.0     0.290    240.7
2016.0     0.319    244.4
2017.0     0.348    247.4
2018.0     0.376    250.0
2019.0     0.402    252.3
2020.0     0.427    254.2
2021.0     0.451    256.0
2022.0     0.473    257.6
2023.0     0.493    259.0
2024.0     0.511    260.4
2025.0     0.528    261.6
2026.0     0.542    262.8
2027.0     0.555    263.9
2028.0     0.565    265.0
2029.0     0.574    266.0
2030.0     0.580    267.1
2031.0     0.585    268.0
2032.0     0.587    269.0
2033.0     0.588    270.0
2034.0     0.586    271.0
2035.0     0.582    272.0
2036.0     0.577    273.0
2037.0     0.569    274.0
2038.0     0.559    275.1
2039.0     0.547    276.2
2040.0     0.534    277.3
2041.0     0.518    278.6
2042.0     0.500    279.9
2043.0     0.481    281.3
2044.0     0.460    282.8
2045.0     0.437    284.5
2046.0     0.412    286.4
2047.0     0.386    288.5
2048.0     0.359    290.9
2049.0     0.330    293.8
2050.0     0.301    297.2
2051.0     0.271    301.3
2052.0     0.242    306.5
2053.0     0.213    313.1
2054.0     0.187    321.6
2055.0     0.164    332.7
2056.0     0.149    346.6
2057.0     0.142      2.9
2058.0     0.146     19.3
2059.0     0.160     33.9
2060.0     0.181     45.6
2061.0     0.206     54.7

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.