19514+4044 COU 2530 AB

 
 
19h 51m 24.76s +40° 44' 07.1" P.A. 152.00 sep 0.2 mag 8.91,9.38 Sp G5 dist. 73.96 pc (241.26 l.y.)
 
 
Coord 2000 19514+4044 Discov num COU2530 Comp AB Coord arcsec 2000 19 51 24.76 +40 44 07.1
Date first 1988 Date last 2018 Obs 15
Pa first 342 Pa last 151.8 P.A. Now (θ) 151.8°
Sep first 0.3 Sep last 0.162 Sep. Now (ρ) 0.162"
Mag pri 8.91 Mag sec 9.38 delta mag (ΔM) 0.47 Spectral class G5 (yellow)
Pri motion ra +046 Sec motion ra
Pri motion dec +026 Sec motion dec
Notes O (Orbital solution)
This double is physical.
 
 
19514+4044 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 48906 19 51 25 +40 44 07 COU 2530 AB 2018 15 152 0.2 8.91 9.38 0.47 Y <===
Show V2514 Cyg 48906 19 51 25 +40 44 07 ORL 6 AC 2015 3 235 4.4 6.75 7.67 0.92
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Var name V2514 Cyg Constellation Cygnus SAO 48906 HIP 97706
Tycho2 3141-02210-1 Gaia DR2 2073839531715609472 HD 226195 BD BD+40 3908
Distance 73.96 Distance ly 241.26
 
 
ORBITAL ELEMENTS
 
 
Period (P)55y± 4.8 Periastron (T)2022.9y± 1 Semi-major axis (a)0.25a± 0.007
Eccentricity (e)0.4 Inclination (i)74.2°± 1.3 Longitude of periastron (ω)38.4°± 8.6
Node (Ω)159.6°± 1.5 Notes ReferenceTok2019e
Equinox2000 Last observation2018 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 359.2 0.221
2001 1.5 0.205
2002 4.1 0.189
2003 7.3 0.172
2004 11.1 0.155
2005 15.9 0.138
2006 22.0 0.121
2007 30.1 0.105
2008 40.8 0.091
2009 54.8 0.081
2010 71.7 0.076
2011 89.4 0.077
2012 105.2 0.085
2013 117.8 0.096
2014 127.5 0.110
2015 134.9 0.125
2016 140.8 0.138
2017 145.7 0.150
2018 150.0 0.159
2019 153.9 0.164
2020 157.7 0.163
2021 161.7 0.155
2022 166.4 0.140
2023 172.5 0.118
2024 182.0 0.091
2025 200.0 0.063
2026 237.4 0.046
2027 281.1 0.055
2028 304.1 0.082
2029 315.1 0.113
2030 321.5 0.143


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



 
 


wds19514%2B4044a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic