19539+4425 GIC 159 AB

 
 
19h 53m 54.48s +44 24' 53.3" P.A. 69.00 sep 6.0 mag 14.26,14.96 Sp M6V+M6V
 
 
Coord 2000 19539+4425 Discov num GIC 159 Comp AB Coord arcsec 2000 19 53 54.48 +44 24 53.3
Date first 1954 Date last 2019 Obs 22
Pa first 106 Pa last 68.5 P.A. Now (θ) 68.5°
Sep first 7.9 Sep last 6.02 Sep. Now (ρ) 6.02"
Mag pri 14.26 Mag sec 14.96 delta mag (ΔM) 0.7 Spectral class M6V+M6V (red/red)
Pri motion ra +361 Sec motion ra +443
Pri motion dec -483 Sec motion dec -581
Notes N O Z (See Notes, Orbital solution, Parallax indicates components are physical)
rPM=0.175 (< 0.3, Physical double)
This double is physical.
 
 
19539+4425 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 19 53 54 +44 24 53 MCY 3 Aa,Ab 2017 46 183 0.4 13.50 16.80 3.30 Y
Show 19 53 54 +44 24 53 GIC 159 AB 2019 22 69 6.0 14.26 14.96 0.70 Y <===
Show 19 53 55 +44 24 55 CRC 36 BC 2012 2 112 14.9 7.80
Quadruple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus
 
 
ORBITAL ELEMENTS
 
 
Period (P)223.1339y Periastron (T)1924.4523y Semi-major axis (a)9.9006a
Eccentricity (e)0.7044 Inclination (i)106.9223° Longitude of periastron (ω)263.7625°
Node (Ω)118.2099° Notesn ReferenceKpp2020f
Equinox Last observation Grade5(1=Definitive, 9=Indet.)
label theta rho
2000 81.3 7.058
2001 80.6 7.004
2002 80.0 6.950
2003 79.3 6.896
2004 78.6 6.841
2005 77.9 6.786
2006 77.2 6.730
2007 76.5 6.675
2008 75.7 6.619
2009 75.0 6.563
2010 74.2 6.508
2011 73.4 6.452
2012 72.6 6.396
2013 71.8 6.340
2014 71.0 6.285
2015 70.2 6.230
2016 69.3 6.175
2017 68.5 6.120
2018 67.6 6.066
2019 66.7 6.012
2020 65.8 5.958
2021 64.8 5.905
2022 63.9 5.853
2023 62.9 5.802
2024 61.9 5.751
2025 61.0 5.701
2026 59.9 5.651
2027 58.9 5.603
2028 57.9 5.555
2029 56.8 5.509
2030 55.7 5.463


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



 
 


wds19539%2B4425c.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic