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

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 16:22:37

Orbital Elements for RST4157
WDS: RST4157 WDS ID/Discoverer
P: 94.800 Orbital period (years)
a: 0.161 Semi-major axis (arcseconds)
i: 59.0 Inclination (degrees)
Ω: 97.8 Longitude of ascending node (degrees)
T: 2008.200 Epoch of periastron passage (year)
e: 0.647 Eccentricity
ω: 200.6 Longitude of periastron (degrees)
Start-Year: 1978.0 Year
End-Year: 2072.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for RST4157
Position: 004631.18-013031.3 Epoch-2000 right ascension and declination
WDS-ID: 00465-0131 WDS designation
Discoverer Code: RST4157 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 4424 HD catalog number
Hipparcos number: . Hipparcos catalog number
V1: 10.0 Magnitude of the primary
V2: 10.0 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2019 Date of last observation
Orbit grade: 4 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: Flags

Double Star Orbit for RST4157



WDS 6th Orbit including measures of RST4157

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


Ephemeris of RST4157
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.170     86.2
-------------------------
1978.0     0.200    121.3
1979.0     0.195    122.3
1980.0     0.189    123.4
1981.0     0.184    124.5
1982.0     0.178    125.7
1983.0     0.172    126.9
1984.0     0.166    128.3
1985.0     0.160    129.7
1986.0     0.154    131.3
1987.0     0.147    133.0
1988.0     0.140    134.9
1989.0     0.133    137.0
1990.0     0.126    139.3
1991.0     0.119    141.8
1992.0     0.112    144.7
1993.0     0.104    148.1
1994.0     0.097    151.9
1995.0     0.090    156.3
1996.0     0.083    161.5
1997.0     0.076    167.7
1998.0     0.070    175.0
1999.0     0.064    183.6
2000.0     0.060    193.6
2001.0     0.057    204.9
2002.0     0.056    217.0
2003.0     0.056    229.4
2004.0     0.057    241.4
2005.0     0.059    252.8
2006.0     0.060    263.6
2007.0     0.059    274.5
2008.0     0.055    286.2
2009.0     0.049    300.4
2010.0     0.042    319.4
2011.0     0.038    344.3
2012.0     0.040     10.6
2013.0     0.047     31.5
2014.0     0.058     45.8
2015.0     0.069     55.5
2016.0     0.081     62.4
2017.0     0.093     67.5
2018.0     0.104     71.5
2019.0     0.115     74.7
2020.0     0.126     77.3
2021.0     0.136     79.6
2022.0     0.145     81.6
2023.0     0.154     83.3
2024.0     0.162     84.8
2025.0     0.170     86.2
2026.0     0.178     87.5
2027.0     0.185     88.7
2028.0     0.192     89.8
2029.0     0.198     90.8
2030.0     0.204     91.8
2031.0     0.209     92.7
2032.0     0.214     93.5
2033.0     0.219     94.3
2034.0     0.224     95.1
2035.0     0.228     95.9
2036.0     0.232     96.6
2037.0     0.235     97.3
2038.0     0.238     98.0
2039.0     0.241     98.7
2040.0     0.244     99.4
2041.0     0.246    100.0
2042.0     0.249    100.6
2043.0     0.250    101.2
2044.0     0.252    101.9
2045.0     0.253    102.5
2046.0     0.254    103.1
2047.0     0.255    103.7
2048.0     0.256    104.3
2049.0     0.256    104.8
2050.0     0.256    105.4
2051.0     0.256    106.0
2052.0     0.256    106.6
2053.0     0.255    107.2
2054.0     0.255    107.8
2055.0     0.254    108.4
2056.0     0.252    109.0
2057.0     0.251    109.6
2058.0     0.249    110.2
2059.0     0.247    110.9
2060.0     0.245    111.5
2061.0     0.243    112.1
2062.0     0.240    112.8
2063.0     0.238    113.5
2064.0     0.235    114.2
2065.0     0.231    114.9
2066.0     0.228    115.6
2067.0     0.225    116.4
2068.0     0.221    117.2
2069.0     0.217    118.0
2070.0     0.212    118.8
2071.0     0.208    119.7






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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