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

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 16:52:58

Orbital Elements for RBR26AA,AB
WDS: RBR26AA,AB WDS ID/Discoverer
P: 106.500 Orbital period (years)
a: 0.179 Semi-major axis (arcseconds)
i: 106.8 Inclination (degrees)
Ω: 65.5 Longitude of ascending node (degrees)
T: 1980.190 Epoch of periastron passage (year)
e: 0.612 Eccentricity
ω: 77.8 Longitude of periastron (degrees)
Start-Year: 1972.0 Year
End-Year: 2078.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for RBR26AA,AB
Position: 034007.24+340659.3 Epoch-2000 right ascension and declination
WDS-ID: 03401+3407 WDS designation
Discoverer Code: RBR26AA,AB Discover designation and components
ADS number: 2668 Aitken Double Star catalog
HD number: 22692 HD catalog number
Hipparcos number: 17129 Hipparcos catalog number
V1: 7.52 Magnitude of the primary
V2: . Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2013 Date of last observation
Orbit grade: 9 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: Flags

Double Star Orbit for RBR26AA,AB



WDS 6th Orbit including measures of RBR26AA,AB

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


Ephemeris of RBR26AA,AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.127    208.5
-------------------------
1972.0     0.114     70.9
1973.0     0.109     68.9
1974.0     0.103     66.7
1975.0     0.095     64.2
1976.0     0.085     61.2
1977.0     0.073     57.2
1978.0     0.059     51.4
1979.0     0.042     41.5
1980.0     0.027     19.5
1981.0     0.020    328.4
1982.0     0.031    285.9
1983.0     0.047    269.0
1984.0     0.064    260.8
1985.0     0.079    255.9
1986.0     0.093    252.6
1987.0     0.105    250.0
1988.0     0.115    248.0
1989.0     0.124    246.3
1990.0     0.132    244.8
1991.0     0.139    243.4
1992.0     0.145    242.2
1993.0     0.151    241.1
1994.0     0.155    240.0
1995.0     0.159    239.0
1996.0     0.162    238.1
1997.0     0.164    237.1
1998.0     0.167    236.2
1999.0     0.168    235.3
2000.0     0.169    234.5
2001.0     0.170    233.6
2002.0     0.171    232.8
2003.0     0.171    231.9
2004.0     0.171    231.1
2005.0     0.170    230.2
2006.0     0.170    229.4
2007.0     0.169    228.5
2008.0     0.168    227.6
2009.0     0.166    226.7
2010.0     0.165    225.8
2011.0     0.163    224.9
2012.0     0.161    224.0
2013.0     0.159    223.0
2014.0     0.157    222.0
2015.0     0.155    221.0
2016.0     0.152    219.9
2017.0     0.150    218.9
2018.0     0.147    217.7
2019.0     0.145    216.6
2020.0     0.142    215.4
2021.0     0.139    214.1
2022.0     0.136    212.8
2023.0     0.133    211.4
2024.0     0.130    210.0
2025.0     0.127    208.5
2026.0     0.124    206.9
2027.0     0.121    205.3
2028.0     0.118    203.5
2029.0     0.115    201.7
2030.0     0.112    199.8
2031.0     0.109    197.8
2032.0     0.106    195.6
2033.0     0.103    193.3
2034.0     0.100    190.9
2035.0     0.098    188.4
2036.0     0.095    185.7
2037.0     0.093    182.9
2038.0     0.090    180.0
2039.0     0.088    176.9
2040.0     0.086    173.6
2041.0     0.085    170.2
2042.0     0.083    166.7
2043.0     0.082    163.1
2044.0     0.081    159.4
2045.0     0.081    155.6
2046.0     0.080    151.8
2047.0     0.080    147.9
2048.0     0.080    144.1
2049.0     0.081    140.2
2050.0     0.082    136.5
2051.0     0.083    132.8
2052.0     0.084    129.2
2053.0     0.085    125.8
2054.0     0.087    122.4
2055.0     0.089    119.2
2056.0     0.091    116.2
2057.0     0.093    113.2
2058.0     0.095    110.4
2059.0     0.098    107.8
2060.0     0.100    105.3
2061.0     0.103    102.8
2062.0     0.105    100.5
2063.0     0.107     98.4
2064.0     0.110     96.3
2065.0     0.112     94.2
2066.0     0.114     92.3
2067.0     0.116     90.4
2068.0     0.118     88.6
2069.0     0.120     86.9
2070.0     0.121     85.2
2071.0     0.122     83.5
2072.0     0.123     81.9
2073.0     0.124     80.3
2074.0     0.123     78.6
2075.0     0.123     77.0
2076.0     0.121     75.3
2077.0     0.119     73.6






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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