19348+2928 WRH 32 (9 Cyg)

 
 
19h 34m 50.92s +29 27' 46.5" P.A. 18.00 sep 0.0 mag 5.90,6.40 Sp A0V+F8III dist. 171.23 pc (558.55 l.y.)
 
 
Coord 2000 19348+2928 Discov num WRH  32 Comp Coord arcsec 2000 19 34 50.92 +29 27 46.5
Date first 1949 Date last 1994 Obs 19
Pa first 121 Pa last 17.8 P.A. Now (θ) 17.8°
Sep first 0.2 Sep last 0.032 Sep. Now (ρ) 0.032"
Mag pri 5.90 Mag sec 6.40 delta mag (ΔM) 0.5 Spectral class A0V+F8III (white/yellow-white)
Pri motion ra +018 Sec motion ra
Pri motion dec +022 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name 9 Cyg Constellation Cygnus SAO 87385 HIP 96302
Tycho2 2150-05010-1 Gaia DR2 2032337228412797696 HD 184759 HR 7441
GC 27062 BD BD+29 3651 Flamsteed 9 Cygni Flamsteed name 9 Cyg
Distance 171.23 Distance ly 558.55
 
 
ORBITAL ELEMENTS
 
 
Period (P)4.56y Periastron (T)1985.56y Semi-major axis (a)0.03a
Eccentricity (e)0.82 Inclination (i)114.6° Longitude of periastron (ω)45.5°
Node (Ω)29.3° Notesn ReferenceBaz1989b
Equinox Last observation1987 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 201.4 0.035
2001 191.1 0.044
2002 181.1 0.037
2003 158.4 0.019
2004 217.1 0.015
2005 196.3 0.041
2006 187.1 0.042
2007 174.5 0.030
2008 116.4 0.010
2009 203.2 0.032
2010 192.2 0.043
2011 182.5 0.038
2012 163.3 0.022
2013 240.0 0.006
2014 197.5 0.040
2015 188.2 0.043
2016 176.6 0.032
2017 134.4 0.012
2018 205.3 0.029
2019 193.3 0.043
2020 183.9 0.040
2021 167.2 0.024
2022 31.0 0.006
2023 198.9 0.038
2024 189.3 0.043
2025 178.4 0.034
2026 146.2 0.015
2027 208.2 0.025
2028 194.4 0.043
2029 185.1 0.041
2030 170.3 0.027


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



 
 


wds19348%2B2928a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic