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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 18:12:46

Orbital Elements for HDS1779

WDS:	HDS1779	WDS ID/Discoverer
P:	49.000	Orbital period (years)
a:	0.124	Semi-major axis (arcseconds)
i:	118.1	Inclination (degrees)
Ω:	206.7	Longitude of ascending node (degrees)
T:	2019.860	Epoch of periastron passage (year)
e:	0.675	Eccentricity
ω:	128.2	Longitude of periastron (degrees)
Start-Year:	2001.0	Year
End-Year:	2049.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HDS1779

Position:	124152.61-644343.5	Epoch-2000 right ascension and declination
WDS-ID:	12419-6444	WDS designation
Discoverer Code:	HDS1779	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	110310	HD catalog number
Hipparcos number:	61959	Hipparcos catalog number
V1:	8.07	Magnitude of the primary
V2:	8.40	Magnitude of the secondary
Equinox:		Equinox
Date:	2018	Date of last observation
Orbit grade:	4	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:		Flags

Double Star Orbit for HDS1779

WDS 6th Orbit including measures of HDS1779

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

Ephemeris of HDS1779

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.058    336.4
-------------------------
2001.0     0.164    228.7
2002.0     0.164    227.2
2003.0     0.165    225.8
2004.0     0.164    224.3
2005.0     0.163    222.9
2006.0     0.162    221.4
2007.0     0.159    219.9
2008.0     0.156    218.3
2009.0     0.152    216.6
2010.0     0.146    214.9
2011.0     0.140    212.9
2012.0     0.132    210.8
2013.0     0.122    208.4
2014.0     0.111    205.5
2015.0     0.098    201.9
2016.0     0.082    197.0
2017.0     0.062    189.4
2018.0     0.040    173.8
2019.0     0.021    122.8
2020.0     0.032     51.6
2021.0     0.048     26.6
2022.0     0.055     12.0
2023.0     0.058    359.7
2024.0     0.058    348.0
2025.0     0.058    336.4
2026.0     0.059    325.1
2027.0     0.061    314.3
2028.0     0.064    304.4
2029.0     0.068    295.5
2030.0     0.073    287.6
2031.0     0.078    280.7
2032.0     0.084    274.7
2033.0     0.090    269.5
2034.0     0.096    265.0
2035.0     0.102    261.0
2036.0     0.108    257.4
2037.0     0.114    254.2
2038.0     0.120    251.3
2039.0     0.125    248.7
2040.0     0.130    246.3
2041.0     0.135    244.1
2042.0     0.140    242.0
2043.0     0.144    240.1
2044.0     0.148    238.2
2045.0     0.152    236.5
2046.0     0.155    234.8
2047.0     0.158    233.2
2048.0     0.160    231.7

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.