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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 16:31:39

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:	2025.0	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' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for A2602

WDS 6th Orbit including measures of A2602

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

Ephemeris of A2602

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.980    182.2
-------------------------
1222.0     3.159    192.5
1232.0     3.138    192.6
1242.0     3.115    192.7
1252.0     3.092    192.8
1262.0     3.068    192.9
1272.0     3.043    193.0
1282.0     3.018    193.1
1292.0     2.992    193.2
1302.0     2.965    193.3
1312.0     2.938    193.4
1322.0     2.909    193.5
1332.0     2.880    193.6
1342.0     2.851    193.7
1352.0     2.820    193.8
1362.0     2.789    193.9
1372.0     2.757    194.0
1382.0     2.725    194.2
1392.0     2.691    194.3
1402.0     2.657    194.4
1412.0     2.623    194.5
1422.0     2.587    194.7
1432.0     2.551    194.8
1442.0     2.514    194.9
1452.0     2.476    195.1
1462.0     2.438    195.2
1472.0     2.399    195.4
1482.0     2.359    195.5
1492.0     2.318    195.7
1502.0     2.277    195.9
1512.0     2.235    196.0
1522.0     2.192    196.2
1532.0     2.148    196.4
1542.0     2.104    196.6
1552.0     2.059    196.8
1562.0     2.013    197.0
1572.0     1.966    197.3
1582.0     1.919    197.5
1592.0     1.870    197.7
1602.0     1.821    198.0
1612.0     1.772    198.3
1622.0     1.721    198.6
1632.0     1.669    198.9
1642.0     1.617    199.2
1652.0     1.564    199.5
1662.0     1.510    199.9
1672.0     1.455    200.3
1682.0     1.400    200.8
1692.0     1.343    201.2
1702.0     1.286    201.7
1712.0     1.228    202.3
1722.0     1.169    202.9
1732.0     1.110    203.6
1742.0     1.049    204.4
1752.0     0.988    205.2
1762.0     0.926    206.2
1772.0     0.863    207.3
1782.0     0.799    208.6
1792.0     0.735    210.1
1802.0     0.671    211.9
1812.0     0.606    214.1
1822.0     0.541    216.8
1832.0     0.477    220.2
1842.0     0.413    224.7
1852.0     0.353    230.8
1862.0     0.296    239.4
1872.0     0.248    251.5
1882.0     0.215    268.3
1892.0     0.204    288.9
1902.0     0.220    309.1
1912.0     0.255    325.1
1922.0     0.302    336.7
1932.0     0.353    345.0
1942.0     0.400    351.2
1952.0     0.432    356.3
1962.0     0.425      1.0
1972.0     0.321      7.2
1982.0     0.076     42.0
1992.0     0.251    171.5
2002.0     0.512    178.3
2012.0     0.734    180.6
2022.0     0.927    181.9
2032.0     1.097    182.8
2042.0     1.251    183.5
2052.0     1.390    184.0
2062.0     1.517    184.4
2072.0     1.635    184.7
2082.0     1.744    185.1
2092.0     1.846    185.3
2102.0     1.941    185.6
2112.0     2.031    185.8
2122.0     2.115    186.0
2132.0     2.194    186.2
2142.0     2.270    186.4
2152.0     2.341    186.5
2162.0     2.408    186.7
2172.0     2.472    186.8
2182.0     2.533    187.0
2192.0     2.591    187.1
2202.0     2.646    187.3
2212.0     2.698    187.4
2222.0     2.747    187.5
2232.0     2.795    187.6
2242.0     2.840    187.7
2252.0     2.882    187.8
2262.0     2.923    187.9
2272.0     2.962    188.0
2282.0     2.999    188.1
2292.0     3.034    188.2
2302.0     3.067    188.3
2312.0     3.098    188.4
2322.0     3.128    188.5
2332.0     3.156    188.6
2342.0     3.183    188.7
2352.0     3.208    188.8
2362.0     3.232    188.9
2372.0     3.254    189.0
2382.0     3.275    189.0
2392.0     3.294    189.1
2402.0     3.313    189.2
2412.0     3.330    189.3
2422.0     3.345    189.4
2432.0     3.360    189.4
2442.0     3.373    189.5
2452.0     3.385    189.6
2462.0     3.397    189.7
2472.0     3.406    189.8
2482.0     3.415    189.8
2492.0     3.423    189.9
2502.0     3.430    190.0
2512.0     3.436    190.1
2522.0     3.440    190.1
2532.0     3.444    190.2
2542.0     3.447    190.3
2552.0     3.449    190.4
2562.0     3.449    190.4
2572.0     3.449    190.5
2582.0     3.448    190.6
2592.0     3.446    190.7
2602.0     3.443    190.7
2612.0     3.440    190.8
2622.0     3.435    190.9
2632.0     3.430    191.0
2642.0     3.423    191.0
2652.0     3.416    191.1
2662.0     3.408    191.2
2672.0     3.399    191.3
2682.0     3.390    191.3
2692.0     3.379    191.4
2702.0     3.368    191.5
2712.0     3.356    191.6
2722.0     3.343    191.6
2732.0     3.329    191.7
2742.0     3.315    191.8
2752.0     3.300    191.9
2762.0     3.284    192.0
2772.0     3.267    192.1
2782.0     3.249    192.1
2792.0     3.231    192.2
2802.0     3.212    192.3
2812.0     3.192    192.4
2822.0     3.172    192.5

Disclaimer

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.