Double Star Calculator - Orbit

Orbital Elements for NHR8AA,AB
WDS: NHR8AA,AB WDS ID/Discoverer
P: 1138.300 Orbital period (years)
a: 0.69 Semi-major axis (arcseconds)
i: 53.7 Inclination (degrees)
Ω: 76.5 Longitude of ascending node (degrees)
T: 2433.300 Epoch of periastron passage (year)
e: 0.21 Eccentricity
ω: 360.0 Longitude of periastron (degrees)
Start-Year: 1455.85 Year
End-Year: 2594.15 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for NHR8AA,AB
Position: 154912.14-353903.9 Epoch-2000 right ascension and declination
WDS-ID: 15492-3539 WDS designation
Discoverer Code: NHR8AA,AB Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: . HD catalog number
Hipparcos number: . Hipparcos catalog number
V1: 11.40 Magnitude of the primary
V2: . Magnitude of the secondary
Equinox: Equinox
Date: 2012 Date of last observation
Orbit grade: 4 Orbit grade, ranging from :
1 = Definitive
2 = Good
3 = Reliable
4 = Preliminary
5 = Indeterminate
Flags: n Flags
Ephemerides: Ephemerides
Code: Gns2014b Reference

Double Star Orbit for NHR8AA,AB



WDS 6th Orbit including measures of NHR8AA,AB

-- 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 NHR8AA,AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.704   279.33
--------------------------
1455.85    0.397   138.69
1465.85    0.391   144.32
1475.85    0.387   150.09
1485.85    0.386   155.94
1495.85    0.387   161.77
1505.85    0.391   167.53
1515.85    0.398   173.13
1525.85    0.407   178.52
1535.85    0.418   183.65
1545.85    0.431   188.50
1555.85    0.445   193.05
1565.85    0.461   197.30
1575.85    0.478   201.26
1585.85    0.495   204.94
1595.85    0.514   208.37
1605.85    0.532   211.55
1615.85    0.551   214.52
1625.85    0.570   217.29
1635.85    0.589   219.89
1645.85    0.608   222.32
1655.85    0.626   224.61
1665.85    0.644   226.77
1675.85    0.661   228.82
1685.85    0.678   230.76
1695.85    0.694   232.61
1705.85    0.710   234.38
1715.85    0.725   236.07
1725.85    0.738   237.70
1735.85    0.752   239.27
1745.85    0.764   240.79
1755.85    0.775   242.26
1765.85    0.785   243.69
1775.85    0.795   245.09
1785.85    0.803   246.45
1795.85    0.811   247.79
1805.85    0.817   249.11
1815.85    0.823   250.40
1825.85    0.827   251.68
1835.85    0.831   252.95
1845.85    0.833   254.21
1855.85    0.835   255.46
1865.85    0.835   256.71
1875.85    0.834   257.96
1885.85    0.832   259.22
1895.85    0.830   260.48
1905.85    0.826   261.75
1915.85    0.821   263.04
1925.85    0.815   264.34
1935.85    0.808   265.66
1945.85    0.801   267.01
1955.85    0.792   268.38
1965.85    0.782   269.79
1975.85    0.771   271.23
1985.85    0.760   272.72
1995.85    0.747   274.26
2005.85    0.734   275.84
2015.85    0.720   277.50
2025.85    0.705   279.21
2035.85    0.689   281.01
2045.85    0.673   282.89
2055.85    0.656   284.87
2065.85    0.638   286.95
2075.85    0.620   289.15
2085.85    0.601   291.49
2095.85    0.583   293.98
2105.85    0.564   296.63
2115.85    0.545   299.46
2125.85    0.526   302.51
2135.85    0.507   305.77
2145.85    0.489   309.28
2155.85    0.472   313.06
2165.85    0.455   317.11
2175.85    0.440   321.46
2185.85    0.426   326.12
2195.85    0.414   331.06
2205.85    0.404   336.29
2215.85    0.395   341.75
2225.85    0.390   347.42
2235.85    0.387   353.21
2245.85    0.386   359.05
2255.85    0.388     4.88
2265.85    0.392    10.61
2275.85    0.399    16.18
2285.85    0.408    21.54
2295.85    0.418    26.66
2305.85    0.429    31.52
2315.85    0.442    36.12
2325.85    0.455    40.46
2335.85    0.468    44.56
2345.85    0.480    48.44
2355.85    0.493    52.12
2365.85    0.504    55.62
2375.85    0.515    58.98
2385.85    0.524    62.21
2395.85    0.532    65.33
2405.85    0.538    68.38
2415.85    0.542    71.36
2425.85    0.545    74.31
2435.85    0.545    77.25
2445.85    0.544    80.19
2455.85    0.540    83.15
2465.85    0.535    86.17
2475.85    0.528    89.25
2485.85    0.520    92.43
2495.85    0.510    95.72
2505.85    0.499    99.14
2515.85    0.487   102.74
2525.85    0.474   106.51
2535.85    0.461   110.50
2545.85    0.448   114.72
2555.85    0.435   119.19
2565.85    0.423   123.93
2575.85    0.412   128.92
2585.85    0.403   134.17






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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 17:20:06



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