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

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 17:17:05

Orbital Elements for HDS785
WDS: HDS785 WDS ID/Discoverer
P: 105.600 Orbital period (years)
a: 0.208 Semi-major axis (arcseconds)
i: 118.0 Inclination (degrees)
Ω: 170.2 Longitude of ascending node (degrees)
T: 2021.900 Epoch of periastron passage (year)
e: 0.65 Eccentricity
ω: 147.9 Longitude of periastron (degrees)
Start-Year: 1973.0 Year
End-Year: 2077.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HDS785
Position: 055032.10-031004.8 Epoch-2000 right ascension and declination
WDS-ID: 05505-0310 WDS designation
Discoverer Code: HDS785 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: . HD catalog number
Hipparcos number: . Hipparcos catalog number
V1: 9.53 Magnitude of the primary
V2: 9.57 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 HDS785



WDS 6th Orbit including measures of HDS785

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


Ephemeris of HDS785
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.082    337.9
-------------------------
1973.0     0.310    184.4
1974.0     0.312    183.9
1975.0     0.313    183.3
1976.0     0.314    182.8
1977.0     0.314    182.3
1978.0     0.315    181.7
1979.0     0.315    181.2
1980.0     0.315    180.7
1981.0     0.314    180.2
1982.0     0.314    179.6
1983.0     0.313    179.1
1984.0     0.312    178.5
1985.0     0.311    178.0
1986.0     0.309    177.5
1987.0     0.307    176.9
1988.0     0.305    176.3
1989.0     0.302    175.8
1990.0     0.300    175.2
1991.0     0.297    174.6
1992.0     0.293    174.0
1993.0     0.290    173.4
1994.0     0.285    172.7
1995.0     0.281    172.1
1996.0     0.276    171.4
1997.0     0.271    170.7
1998.0     0.266    170.0
1999.0     0.260    169.2
2000.0     0.253    168.4
2001.0     0.246    167.6
2002.0     0.239    166.7
2003.0     0.231    165.7
2004.0     0.223    164.7
2005.0     0.214    163.6
2006.0     0.205    162.4
2007.0     0.195    161.1
2008.0     0.184    159.6
2009.0     0.173    158.0
2010.0     0.161    156.1
2011.0     0.148    153.9
2012.0     0.135    151.2
2013.0     0.121    148.0
2014.0     0.106    143.9
2015.0     0.091    138.4
2016.0     0.075    130.7
2017.0     0.060    118.9
2018.0     0.047    100.2
2019.0     0.041     72.3
2020.0     0.044     42.4
2021.0     0.054     20.2
2022.0     0.065      5.4
2023.0     0.074    354.6
2024.0     0.080    345.8
2025.0     0.082    337.9
2026.0     0.083    330.2
2027.0     0.081    322.3
2028.0     0.080    314.3
2029.0     0.078    305.9
2030.0     0.078    297.2
2031.0     0.078    288.4
2032.0     0.079    279.8
2033.0     0.081    271.5
2034.0     0.084    263.8
2035.0     0.088    256.7
2036.0     0.093    250.3
2037.0     0.099    244.6
2038.0     0.105    239.6
2039.0     0.112    235.1
2040.0     0.119    231.1
2041.0     0.126    227.6
2042.0     0.133    224.4
2043.0     0.140    221.6
2044.0     0.147    219.0
2045.0     0.154    216.7
2046.0     0.161    214.6
2047.0     0.168    212.7
2048.0     0.175    210.9
2049.0     0.182    209.2
2050.0     0.189    207.7
2051.0     0.196    206.3
2052.0     0.202    204.9
2053.0     0.208    203.7
2054.0     0.215    202.5
2055.0     0.221    201.4
2056.0     0.227    200.4
2057.0     0.232    199.4
2058.0     0.238    198.4
2059.0     0.243    197.5
2060.0     0.248    196.6
2061.0     0.253    195.8
2062.0     0.258    195.0
2063.0     0.263    194.2
2064.0     0.267    193.5
2065.0     0.272    192.7
2066.0     0.276    192.0
2067.0     0.280    191.4
2068.0     0.283    190.7
2069.0     0.287    190.0
2070.0     0.290    189.4
2071.0     0.293    188.8
2072.0     0.296    188.2
2073.0     0.299    187.6
2074.0     0.301    187.0
2075.0     0.304    186.4
2076.0     0.306    185.9






Disclaimer
This result is provided without warranty. For all terms, see the Full Disclaimer. Copyright (C) 2025. The Double Star Calculator and the results generated are licensed under CC BY-NC-SA 4.0.


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.


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