19418+5032 TRN 4 Aa,Ab

 
 
19h 41m 49.09s +50 31' 31.6" P.A. 207.00 sep 3.3 mag 5.99,13.00 Sp G1.5V+M5V dist. 21.08 pc (68.76 l.y.)
 
 
Coord 2000 19418+5032 Discov num TRN   4 Comp Aa,Ab Coord arcsec 2000 19 41 49.09 +50 31 31.6
Date first 1998 Date last 2016 Obs 14
Pa first 204 Pa last 206.6 P.A. Now (θ) 206.6°
Sep first 3.5 Sep last 3.26 Sep. Now (ρ) 3.26"
Mag pri 5.99 Mag sec 13.00 delta mag (ΔM) 7.01 Spectral class G1.5V+M5V (yellow/red)
Pri motion ra -146 Sec motion ra
Pri motion dec -155 Sec motion dec
Notes N V (See Notes, Proper motion indicates physical)
This double is physical.
 
 
19418+5032 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 31898 19 41 49 +50 31 32 TRN 4 Aa,Ab 2016 14 207 3.3 5.99 13.00 7.01 Y <===
Show 16 Cyg 31898 19 41 49 +50 31 32 STFA 46 AB 2020 591 133 39.7 6.00 6.23 0.23
Show 19 41 52 +50 31 03 PAT 48 BC 2015 5 70 18.2 4.65 11.91 7.26
Quadruple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus SAO 31898 HIP 96895 Tycho2 3565-01524-1
HD 186408 HR 7503 GC 27284 ADS 12815
GL Gl 765.1A BD BD+50 2847 Flamsteed 16 Cygni Flamsteed name 16 Cyg
Distance 21.08 Distance ly 68.76
 
 
SUSPECTED ORBITAL ELEMENTS
 
 
Identifier19418+5032
coord_arcsec_2000194149.09+503131.6
Period (P)135.127c Periastron (T)153.25y Semi-major axis (a)35.242a
Eccentricity (e)0.863 Inclination (i)135.44° Longitude of periastron (ω)26.6°
Node (Ω)313.44° Notesn ReferenceMrc1999
Equinox2000 Last observation1998 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 133.3 39.552
2001 133.3 39.565
2002 133.3 39.577
2003 133.3 39.590
2004 133.3 39.602
2005 133.3 39.615
2006 133.3 39.627
2007 133.3 39.639
2008 133.3 39.652
2009 133.3 39.664
2010 133.3 39.677
2011 133.3 39.689
2012 133.3 39.701
2013 133.2 39.714
2014 133.2 39.726
2015 133.2 39.739
2016 133.2 39.751
2017 133.2 39.763
2018 133.2 39.776
2019 133.2 39.788
2020 133.2 39.801
2021 133.2 39.813
2022 133.2 39.825
2023 133.2 39.838
2024 133.2 39.850
2025 133.2 39.862
2026 133.1 39.875
2027 133.1 39.887
2028 133.1 39.899
2029 133.1 39.912
2030 133.1 39.924


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



 
 


wds19418%2B5032c.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic