19556+5226 YR    2Aa,Ab

 
 
19h 55m 37.82s +52 26' 20.5" P.A. 275.1 sep 0.03 mag 5.60,6.10 Sp A4Vn dist. 86.28 pc (281.45 l.y.)
 
 
Coord 2000
19556+5226
Discov num
YR    2
Comp
Aa,Ab
Coord arcsec 2000
19 55 37.82 +52 26 20.5
Date first
1996
Date last
2010
Obs
16
Pa first
106
Pa last
45
P.A. Now (θ)
275.1°
Sep first
0.1
Sep last
0.1
Sep. Now (ρ)
0.03"
Mag pri
5.60
Mag sec
6.10
delta mag (ΔM)
0.5
Spectral class
A4Vn (white)
Pri motion ra
-034
Sec motion ra
Pri motion dec
-022
Sec motion dec
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
19556+5226 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 32114 19556+5226 YR 2 Aa,Ab 1996 2010 16 275 0.0 5.60 6.10 0.50 Y <===
Show Psi Cyg 32114 19556+5226 STF2605 AB 1822 2014 129 177 2.8 5.03 7.52 2.49
Show 19556+5226 STF2605 AC 1908 2003 5 53 23.9 5.03 13.80 8.77
Show 32114 19556+5226 STF2605 AD 1880 2003 8 60 169.8 5.03 11.31 6.28
Quintuple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
45
Precise sep
0.111
Cdsa2 id
YR 2 Aa,Ab
Constellation
Cygnus
SAO
32114
HIP
98055
HD
189037
HR
7619
GC
27618
ADS
13148
Bayer
Psi Cygni
Bayer name
Psi Cyg
Flamsteed
24 Cygni
Flamsteed name
24 Cyg
Ra deg
19.927172222222225
De deg
52.439027777777774
Distance
86.28
Distance ly
281.45
last precise pa
45
last precise sep
0.111
 
 
ORBITAL ELEMENTS
 
 
Period (P)54.08y Periastron (T)2016.9y Semi-major axis (a)0.141a
Eccentricity (e)0.484 Inclination (i)113° Longitude of periastron (ω)259.9°
Node (Ω)216.7° Note Grade4(1=Definitive, 9=Indet.)
Equinox2000 Last observation2010
label rho theta
2000 0.092 85.7
2001 0.096 80.5
2002 0.099 75.8
2003 0.103 71.3
2004 0.107 67.2
2005 0.110 63.4
2006 0.112 59.7
2007 0.114 56.2
2008 0.115 52.7
2009 0.115 49.3
2010 0.113 45.8
2011 0.109 42.1
2012 0.102 38.1
2013 0.093 33.3
2014 0.080 27.2
2015 0.063 18.3
2016 0.044 2.1
2017 0.030 326.3
2018 0.033 275.1
2019 0.051 247.7
2020 0.070 235.0
2021 0.087 227.6
2022 0.101 222.5
2023 0.113 218.5
2024 0.122 215.2
2025 0.129 212.4
2026 0.134 209.7
2027 0.137 207.3
2028 0.139 204.9
2029 0.140 202.6
2030 0.139 200.2

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

grafico orbita





wds19556%2B5226a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
19556+5226 YR 2 Aa,Ab 2003 11 69 0.1 5.03   A4Vn D 195537.82+522620.5
19556+5226 YR 2 Aa,Ab 2007 13 55 0.1 5.60 6.10 A4Vn D 195537.82+522620.5
19556+5226 YR 2 Aa,Ab 2010 15 45 0.1 5.60 6.10 A4Vn N D 195537.82+522620.5

If you need more information about this double, apply for a data request form to the WDS.