09455-2824 B 188 (HD 84566)

 
 
09h 45m 28.20s -28° 24' 19.6" P.A. 357.00 sep 0.4 mag 9.20,9.70 Sp F0V dist. 135.5 pc (442 l.y.)
 
 
Coord 2000 09455-2824 Discov num B   188 Comp Coord arcsec 2000 09 45 28.20 -28 24 19.6
Date first 1926 Date last 2023 Obs 15
Pa first 34 Pa last 356.9 P.A. Now (θ) 173.8°
Sep first 0.5 Sep last 0.384 Sep. Now (ρ) 0.344"
Mag pri 9.20 Mag sec 9.70 delta mag (ΔM) 0.5 Spectral class F0V (yellow-white)
Pri motion ra -013 Sec motion ra
Pri motion dec -007 Sec motion dec
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 84566 Constellation Antlia SAO 177941 HIP 47878
Tycho2 6614-00482-1 Gaia DR2 5656947437547353472 HD 84566 ADS 7510
CD CD-27 6907 CP CP-27 3859 Distance 135.5 Distance ly 442
 
 
ORBITAL ELEMENTS
 
 
Period (P)293.2y± 45.6 Periastron (T)1983.85y± 0.81 Semi-major axis (a)0.387a± 0.04
Eccentricity (e)0.838± 0.018 Inclination (i)46.3°± 5.6 Longitude of periastron (ω)175.4°± 4.5
Node (Ω)22.3°± 3.6 Notes ReferenceTok2023a
Equinox2000 Last observation2023 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 335.7 0.188
2001 337.5 0.198
2002 339.2 0.208
2003 340.7 0.218
2004 342.1 0.228
2005 343.4 0.237
2006 344.6 0.247
2007 345.7 0.256
2008 346.7 0.265
2009 347.7 0.274
2010 348.6 0.282
2011 349.4 0.291
2012 350.2 0.299
2013 351.0 0.308
2014 351.7 0.316
2015 352.3 0.324
2016 353.0 0.332
2017 353.6 0.339
2018 354.2 0.347
2019 354.8 0.354
2020 355.3 0.362
2021 355.8 0.369
2022 356.3 0.376
2023 356.8 0.383
2024 357.3 0.390
2025 357.7 0.397
2026 358.2 0.403
2027 358.6 0.410
2028 359.0 0.416
2029 359.4 0.423
2030 359.8 0.429
2031 0.1 0.435
2032 0.5 0.441
2033 0.8 0.447
2034 1.2 0.453
2035 1.5 0.459
2036 1.8 0.464
2037 2.2 0.470
2038 2.5 0.475
2039 2.8 0.481
2040 3.1 0.486
2041 3.4 0.491
2042 3.6 0.497
2043 3.9 0.502
2044 4.2 0.507
2045 4.5 0.512
2046 4.7 0.517
2047 5.0 0.521
2048 5.2 0.526
2049 5.5 0.531
2050 5.7 0.535


 
grafico orbita
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
wds09455-2824a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic