Double Star Calculator - Orbit

Orbital Elements for B1474

WDS:	B1474	WDS ID/Discoverer
P:	100.850	Orbital period (years)
a:	0.295	Semi-major axis (arcseconds)
i:	0.0	Inclination (degrees)
Ω:	125.7	Longitude of ascending node (degrees)
T:	2045.750	Epoch of periastron passage (year)
e:	0.038	Eccentricity
ω:	281.0	Longitude of periastron (degrees)
Start-Year:	1974.575	Year
End-Year:	2075.425	Year
Epoch:	2026.5	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for B1474
Position:	045013.57-311229.5	Epoch-2000 right ascension and declination
WDS-ID:	04502-3113	WDS designation
Discoverer Code:	B1474	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	30906	HD catalog number
Hipparcos number:	22484	Hipparcos catalog number
V1:	10.03	Magnitude of the primary
V2:	10.45	Magnitude of the secondary
Equinox:	2000	Equinox
Date:		Date of last observation
Orbit grade:	3	Orbit grade, ranging from : 1 = Definitive 2 = Good 3 = Reliable 4 = Preliminary 5 = Indeterminate
Flags:	n	Flags
Ephemerides:		Ephemerides
Code:	Doc2023b	Reference

Double Star Orbit for B1474

WDS 6th Orbit including measures of B1474

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

Legend:

Green plus signs:	Visual (micrometric) measures
Violet asterisks:	Photographic measures
Blue symbols:	Various interferometric techniques
Dot-dash line:	Indicates the line of nodes

Ephemeris of B1474

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.291   333.86
--------------------------
1974.58    0.298   156.76
1975.58    0.299   160.24
1976.58    0.300   163.70
1977.58    0.300   167.15
1978.58    0.301   170.58
1979.58    0.302   174.00
1980.58    0.302   177.41
1981.58    0.303   180.81
1982.58    0.303   184.19
1983.58    0.304   187.57
1984.58    0.304   190.93
1985.58    0.304   194.29
1986.58    0.305   197.63
1987.58    0.305   200.97
1988.58    0.305   204.31
1989.58    0.306   207.64
1990.58    0.306   210.96
1991.58    0.306   214.28
1992.58    0.306   217.59
1993.58    0.306   220.91
1994.58    0.306   224.22
1995.58    0.306   227.53
1996.58    0.306   230.84
1997.58    0.306   234.15
1998.58    0.306   237.46
1999.58    0.306   240.78
2000.58    0.306   244.10
2001.58    0.305   247.43
2002.58    0.305   250.76
2003.58    0.305   254.09
2004.58    0.305   257.44
2005.58    0.304   260.79
2006.58    0.304   264.15
2007.58    0.303   267.52
2008.58    0.303   270.90
2009.58    0.302   274.29
2010.58    0.302   277.69
2011.58    0.301   281.11
2012.58    0.301   284.53
2013.58    0.300   287.98
2014.58    0.299   291.43
2015.58    0.299   294.90
2016.58    0.298   298.38
2017.58    0.297   301.89
2018.58    0.297   305.40
2019.58    0.296   308.93
2020.58    0.295   312.48
2021.58    0.295   316.05
2022.58    0.294   319.63
2023.58    0.293   323.23
2024.58    0.293   326.85
2025.58    0.292   330.48
2026.58    0.291   334.13
2027.58    0.291   337.80
2028.58    0.290   341.49
2029.58    0.289   345.19
2030.58    0.289   348.90
2031.58    0.288   352.63
2032.58    0.288   356.38
2033.58    0.287     0.14
2034.58    0.287     3.91
2035.58    0.286     7.70
2036.58    0.286    11.50
2037.58    0.285    15.30
2038.58    0.285    19.12
2039.58    0.285    22.95
2040.58    0.284    26.78
2041.58    0.284    30.62
2042.58    0.284    34.47
2043.58    0.284    38.32
2044.58    0.284    42.17
2045.58    0.284    46.03
2046.58    0.284    49.88
2047.58    0.284    53.73
2048.57    0.284    57.58
2049.57    0.284    61.43
2050.57    0.284    65.27
2051.57    0.285    69.11
2052.57    0.285    72.94
2053.57    0.285    76.76
2054.57    0.286    80.57
2055.57    0.286    84.37
2056.57    0.286    88.16
2057.57    0.287    91.94
2058.57    0.287    95.71
2059.57    0.288    99.46
2060.57    0.289   103.19
2061.57    0.289   106.92
2062.57    0.290   110.62
2063.57    0.290   114.31
2064.57    0.291   117.98
2065.57    0.292   121.64
2066.57    0.292   125.28
2067.57    0.293   128.90
2068.57    0.294   132.51
2069.57    0.294   136.10
2070.57    0.295   139.67
2071.57    0.296   143.23
2072.57    0.297   146.76
2073.57    0.297   150.29
2074.57    0.298   153.79

Disclaimer

This result is provided without warranty. For all terms, see the Full Disclaimer. Copyright (C) 2025. Unless otherwise noted, all output generated by the Double Star Calculator including orbit diagrams, ephemerides, and analytical reports is licensed under CC BY 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.

Report Information

Double Star Calculator:		Version 1.2 ($Rev: 2397 $)
Report created:		2026-06-25 15:30:31