Double Star Calculator - Orbit

Orbital Elements for A2602
WDS: A2602 WDS ID/Discoverer
P: 1606.000 Orbital period (years)
a: 2.455 Semi-major axis (arcseconds)
i: 82.4 Inclination (degrees)
Ω: 4.5 Longitude of ascending node (degrees)
T: 1976.200 Epoch of periastron passage (year)
e: 0.868 Eccentricity
ω: 45.3 Longitude of periastron (degrees)
Start-Year: 1222.0 Year
End-Year: 2828.0 Year
Epoch: 2026.5 Besselian Epoch
 
Further data from the WDS Sixth Catalog of Orbits for A2602
Position: 015002.13-040734.3 Epoch-2000 right ascension and declination
WDS-ID: 01500-0408 WDS designation
Discoverer Code: A2602 Discover designation and components
ADS number: 1458 Aitken Double Star catalog
HD number: . HD catalog number
Hipparcos number: . Hipparcos catalog number
V1: 10.4 Magnitude of the primary
V2: 10.4 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2015 Date of last observation
Orbit grade: 5 Orbit grade, ranging from :
1 = Definitive
2 = Good
3 = Reliable
4 = Preliminary
5 = Indeterminate
Flags: n Flags
Ephemerides: Ephemerides
Code: Doc2016i Reference

Double Star Orbit for A2602



WDS 6th Orbit including measures of A2602

-- 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 A2602
Click to expand/collapse ephemeris: 
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    1.006   182.37
--------------------------
1222.00    3.159   192.53
1232.00    3.138   192.62
1242.00    3.115   192.71
1252.00    3.092   192.81
1262.00    3.068   192.90
1272.00    3.043   192.99
1282.00    3.018   193.09
1292.00    2.992   193.19
1302.00    2.965   193.29
1312.00    2.938   193.39
1322.00    2.909   193.49
1332.00    2.880   193.60
1342.00    2.851   193.71
1352.00    2.820   193.82
1362.00    2.789   193.93
1372.00    2.757   194.05
1382.00    2.725   194.17
1392.00    2.691   194.29
1402.00    2.657   194.41
1412.00    2.623   194.54
1422.00    2.587   194.67
1432.00    2.551   194.80
1442.00    2.514   194.94
1452.00    2.476   195.08
1462.00    2.438   195.23
1472.00    2.399   195.38
1482.00    2.359   195.54
1492.00    2.318   195.70
1502.00    2.277   195.87
1512.00    2.235   196.04
1522.00    2.192   196.22
1532.00    2.148   196.41
1542.00    2.104   196.61
1552.00    2.059   196.81
1562.00    2.013   197.03
1572.00    1.966   197.25
1582.00    1.919   197.49
1592.00    1.870   197.73
1602.00    1.821   198.00
1612.00    1.772   198.27
1622.00    1.721   198.56
1632.00    1.669   198.87
1642.00    1.617   199.20
1652.00    1.564   199.55
1662.00    1.510   199.93
1672.00    1.455   200.33
1682.00    1.400   200.76
1692.00    1.343   201.24
1702.00    1.286   201.75
1712.00    1.228   202.31
1722.00    1.169   202.93
1732.00    1.110   203.61
1742.00    1.049   204.37
1752.00    0.988   205.23
1762.00    0.926   206.20
1772.00    0.863   207.31
1782.00    0.799   208.60
1792.00    0.735   210.11
1802.00    0.671   211.91
1812.00    0.606   214.09
1822.00    0.541   216.79
1832.00    0.477   220.23
1842.00    0.413   224.74
1852.00    0.353   230.83
1862.00    0.296   239.35
1872.00    0.248   251.50
1882.00    0.215   268.34
1892.00    0.204   288.94
1902.00    0.220   309.09
1912.00    0.255   325.10
1922.00    0.302   336.65
1932.00    0.353   344.96
1942.00    0.400   351.22
1952.00    0.432   356.31
1962.00    0.425     1.04
1972.00    0.321     7.16
1982.00    0.076    41.99
1992.00    0.251   171.51
2002.00    0.512   178.30
2012.00    0.734   180.64
2022.00    0.927   181.94
2032.00    1.097   182.81
2042.00    1.251   183.45
2052.00    1.390   183.96
2062.00    1.517   184.38
2072.00    1.635   184.74
2082.00    1.744   185.05
2092.00    1.846   185.33
2102.00    1.941   185.58
2112.00    2.031   185.80
2122.00    2.115   186.01
2132.00    2.194   186.20
2142.00    2.270   186.38
2152.00    2.341   186.54
2162.00    2.408   186.70
2172.00    2.472   186.85
2182.00    2.533   186.99
2192.00    2.591   187.13
2202.00    2.646   187.26
2212.00    2.698   187.38
2222.00    2.747   187.50
2232.00    2.795   187.62
2242.00    2.840   187.73
2252.00    2.882   187.84
2262.00    2.923   187.94
2272.00    2.962   188.04
2282.00    2.999   188.14
2292.00    3.034   188.24
2302.00    3.067   188.34
2312.00    3.098   188.43
2322.00    3.128   188.52
2332.00    3.156   188.61
2342.00    3.183   188.70
2352.00    3.208   188.79
2362.00    3.232   188.87
2372.00    3.254   188.96
2382.00    3.275   189.04
2392.00    3.294   189.12
2402.00    3.313   189.20
2412.00    3.330   189.28
2422.00    3.345   189.36
2432.00    3.360   189.44
2442.00    3.373   189.52
2452.00    3.385   189.60
2462.00    3.397   189.67
2472.00    3.406   189.75
2482.00    3.415   189.83
2492.00    3.423   189.90
2502.00    3.430   189.98
2512.00    3.436   190.05
2522.00    3.440   190.13
2532.00    3.444   190.20
2542.00    3.447   190.28
2552.00    3.449   190.35
2562.00    3.449   190.43
2572.00    3.449   190.50
2582.00    3.448   190.58
2592.00    3.446   190.65
2602.00    3.443   190.73
2612.00    3.440   190.80
2622.00    3.435   190.88
2632.00    3.430   190.95
2642.00    3.423   191.03
2652.00    3.416   191.10
2662.00    3.408   191.18
2672.00    3.399   191.26
2682.00    3.390   191.33
2692.00    3.379   191.41
2702.00    3.368   191.49
2712.00    3.356   191.57
2722.00    3.343   191.65
2732.00    3.329   191.73
2742.00    3.315   191.81
2752.00    3.300   191.89
2762.00    3.284   191.97
2772.00    3.267   192.05
2782.00    3.249   192.14
2792.00    3.231   192.22
2802.00    3.212   192.31
2812.00    3.192   192.39
2822.00    3.172   192.48



 

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 14:54:29


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