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WDS 15423-1929 HU 653

15423-1929 HU 653

 
 
15h 42m 19.47s -19° 29' 28.6" P.A. 177.00 sep 4.3 mag 8.94,12.90 Sp G8IV dist. 47.51 pc (154.98 l.y.)
 
 
Coord 2000 15423-1929 Discov num HU  653 Comp Coord arcsec 2000 15 42 19.47 -19 29 28.6
Date first 1902 Date last 2019 Obs 13
Pa first 194 Pa last 177.4 P.A. Now (θ) 177.4°
Sep first 3.6 Sep last 4.331 Sep. Now (ρ) 4.331"
Mag pri 8.94 Mag sec 12.90 delta mag (ΔM) 3.96 Spectral class G8IV (yellow)
Pri motion ra -168 Sec motion ra
Pri motion dec -110 Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Libra SAO 159450 HIP 76917 Tycho2 6193-00108-1
Gaia DR2 6254010117181952640 HD 140072 ADS 9748 BD BD-19 4190
Distance 47.51 Distance ly 154.98
 
 
SUSPECTED ORBITAL ELEMENTS
 
 
Identifier15421-1928 GJ 595
coord_arcsec_2000154206.55-192814.4
Period (P)62d± 0.1 Periastron (T)2018.43y± 0.22 Semi-major axis (a)9m± 2.2
Eccentricity (e)0.02± 0.14 Inclination (i)94.5°± 5.8 Longitude of periastron (ω)217.9°± 112.5
Node (Ω)205.9°± 13.2 Notes ReferenceHen2018
Equinox2000 Last observation2017 Grade9(1=Definitive, 9=Indet.)
label theta rho
2000-01-01 204.8 0.009
2001-01-01 208.0 0.008
2002-01-01 215.0 0.004
2003-01-01 8.5 0.002
2004-01-01 22.7 0.007
2005-01-01 26.3 0.009
2006-01-01 30.5 0.006
2007-01-01 64.3 0.001
2008-01-01 198.9 0.005
2009-01-01 204.3 0.009
2010-01-01 207.4 0.009
2011-01-01 212.8 0.005
2012-01-01 353.3 0.001
2013-01-01 21.8 0.007
2014-01-01 25.8 0.009
2015-01-01 29.5 0.007
2016-01-01 45.6 0.002
2017-01-01 196.7 0.004
2018-01-01 203.7 0.008
2019-01-01 206.8 0.009
2020-01-01 211.3 0.006
2021-01-01 295.3 0.001
2022-01-01 20.7 0.006
2023-01-01 25.2 0.009
2024-01-01 28.7 0.008
2025-01-01 38.7 0.003
2026-01-01 193.2 0.003
2027-01-01 203.0 0.008
2028-01-01 206.3 0.009
2029-01-01 210.1 0.007
2030-01-01 238.3 0.001


 
grafico orbita
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.



 
 


wds15421-1928a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic