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

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 18:34:59

Orbital Elements for NZO65
WDS: NZO65 WDS ID/Discoverer
P: 120.600 Orbital period (years)
a: 0.6831 Semi-major axis (arcseconds)
i: 85.7 Inclination (degrees)
Ω: 122.2 Longitude of ascending node (degrees)
T: 2009.880 Epoch of periastron passage (year)
e: 0.464 Eccentricity
ω: 219.0 Longitude of periastron (degrees)
Start-Year: 1965.0 Year
End-Year: 2085.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for NZO65
Position: 155448.49-655404.3 Epoch-2000 right ascension and declination
WDS-ID: 15548-6554 WDS designation
Discoverer Code: NZO65 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 141747 HD catalog number
Hipparcos number: 77921 Hipparcos catalog number
V1: 8.35 Magnitude of the primary
V2: 8.49 Magnitude of the secondary
Equinox: 2000 Equinox
Date: Date of last observation
Orbit grade: 4 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: Flags

Double Star Orbit for NZO65



WDS 6th Orbit including measures of NZO65

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


Ephemeris of NZO65
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.425    118.3
-------------------------
1965.0     0.499    129.2
1966.0     0.476    129.6
1967.0     0.453    130.0
1968.0     0.430    130.5
1969.0     0.406    131.0
1970.0     0.381    131.6
1971.0     0.357    132.3
1972.0     0.332    133.1
1973.0     0.306    134.0
1974.0     0.281    135.1
1975.0     0.255    136.4
1976.0     0.229    138.0
1977.0     0.202    140.0
1978.0     0.176    142.6
1979.0     0.150    146.1
1980.0     0.125    151.0
1981.0     0.101    158.4
1982.0     0.079    170.1
1983.0     0.063    189.1
1984.0     0.057    216.0
1985.0     0.064    242.4
1986.0     0.081    260.4
1987.0     0.103    271.5
1988.0     0.128    278.5
1989.0     0.153    283.3
1990.0     0.178    286.7
1991.0     0.204    289.2
1992.0     0.229    291.2
1993.0     0.253    292.8
1994.0     0.277    294.1
1995.0     0.300    295.2
1996.0     0.321    296.2
1997.0     0.341    297.0
1998.0     0.359    297.8
1999.0     0.375    298.4
2000.0     0.388    299.1
2001.0     0.398    299.7
2002.0     0.404    300.3
2003.0     0.407    300.8
2004.0     0.405    301.4
2005.0     0.398    301.9
2006.0     0.386    302.5
2007.0     0.368    303.2
2008.0     0.345    303.9
2009.0     0.315    304.8
2010.0     0.281    305.8
2011.0     0.241    307.2
2012.0     0.197    309.1
2013.0     0.151    312.2
2014.0     0.103    318.2
2015.0     0.056    334.3
2016.0     0.031     39.7
2017.0     0.064     92.4
2018.0     0.112    105.3
2019.0     0.161    110.4
2020.0     0.209    113.2
2021.0     0.255    114.9
2022.0     0.301    116.1
2023.0     0.344    117.0
2024.0     0.385    117.7
2025.0     0.425    118.3
2026.0     0.463    118.7
2027.0     0.499    119.1
2028.0     0.533    119.5
2029.0     0.565    119.8
2030.0     0.595    120.1
2031.0     0.624    120.3
2032.0     0.651    120.5
2033.0     0.676    120.8
2034.0     0.700    120.9
2035.0     0.722    121.1
2036.0     0.743    121.3
2037.0     0.762    121.5
2038.0     0.780    121.6
2039.0     0.796    121.8
2040.0     0.811    121.9
2041.0     0.825    122.1
2042.0     0.837    122.2
2043.0     0.849    122.3
2044.0     0.859    122.4
2045.0     0.867    122.6
2046.0     0.875    122.7
2047.0     0.882    122.8
2048.0     0.887    122.9
2049.0     0.892    123.0
2050.0     0.895    123.2
2051.0     0.898    123.3
2052.0     0.899    123.4
2053.0     0.900    123.5
2054.0     0.900    123.6
2055.0     0.898    123.7
2056.0     0.896    123.8
2057.0     0.893    124.0
2058.0     0.889    124.1
2059.0     0.884    124.2
2060.0     0.879    124.3
2061.0     0.872    124.4
2062.0     0.865    124.6
2063.0     0.857    124.7
2064.0     0.849    124.8
2065.0     0.839    124.9
2066.0     0.829    125.1
2067.0     0.818    125.2
2068.0     0.806    125.4
2069.0     0.794    125.5
2070.0     0.781    125.6
2071.0     0.767    125.8
2072.0     0.753    126.0
2073.0     0.738    126.1
2074.0     0.722    126.3
2075.0     0.706    126.5
2076.0     0.689    126.7
2077.0     0.672    126.9
2078.0     0.654    127.1
2079.0     0.635    127.3
2080.0     0.616    127.5
2081.0     0.596    127.8
2082.0     0.576    128.1
2083.0     0.555    128.4
2084.0     0.534    128.7






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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