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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 17:35:04

Orbital Elements for SHB1AB

WDS:	SHB1AB	WDS ID/Discoverer
P:	40.840	Orbital period (years)
a:	4.3075	Semi-major axis (arcseconds)
i:	31.408	Inclination (degrees)
Ω:	100.683	Longitude of ascending node (degrees)
T:	1968.076	Epoch of periastron passage (year)
e:	0.39785	Eccentricity
ω:	89.23	Longitude of periastron (degrees)
Start-Year:	2005.0	Year
End-Year:	2045.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for SHB1AB

Position:	073918.12+051330.0	Epoch-2000 right ascension and declination
WDS-ID:	07393+0514	WDS designation
Discoverer Code:	SHB1AB	Discover designation and components
ADS number:	6251	Aitken Double Star catalog
HD number:	61421	HD catalog number
Hipparcos number:	37279	Hipparcos catalog number
V1:	0.46	Magnitude of the primary
V2:	10.8	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 SHB1AB

WDS 6th Orbit including measures of SHB1AB

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

Ephemeris of SHB1AB

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     5.070    348.6
-------------------------
2005.0     3.237    113.8
2006.0     2.897    127.4
2007.0     2.564    144.7
2008.0     2.306    166.5
2009.0     2.214    192.0
2010.0     2.332    217.1
2011.0     2.606    238.4
2012.0     2.946    255.1
2013.0     3.286    268.3
2014.0     3.598    279.1
2015.0     3.872    288.3
2016.0     4.108    296.3
2017.0     4.307    303.5
2018.0     4.476    310.2
2019.0     4.617    316.4
2020.0     4.735    322.2
2021.0     4.832    327.8
2022.0     4.913    333.2
2023.0     4.978    338.4
2024.0     5.030    343.6
2025.0     5.070    348.6
2026.0     5.101    353.5
2027.0     5.122    358.4
2028.0     5.135      3.3
2029.0     5.139      8.2
2030.0     5.136     13.0
2031.0     5.125     17.9
2032.0     5.106     22.8
2033.0     5.079     27.7
2034.0     5.043     32.7
2035.0     4.996     37.8
2036.0     4.939     43.0
2037.0     4.868     48.3
2038.0     4.782     53.8
2039.0     4.679     59.5
2040.0     4.555     65.5
2041.0     4.408     71.9
2042.0     4.233     78.7
2043.0     4.027     86.2
2044.0     3.784     94.6

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.