19091+3436 CHR  84Aa,Ab

 
 
19h 09m 04.35s +34 35' 59.9" P.A. 89.3 sep 0.06 mag 6.89,8.96 Sp G1V dist. 52.33 pc (170.7 l.y.)
 
 
Coord 2000
19091+3436
Discov num
CHR  84
Comp
Aa,Ab
Coord arcsec 2000
19 09 04.35 +34 35 59.9
Date first
1985
Date last
2014
Obs
35
Pa first
353
Pa last
114
P.A. Now (θ)
89.3°
Sep first
0.1
Sep last
0.1
Sep. Now (ρ)
0.06"
Mag pri
6.89
Mag sec
8.96
delta mag (ΔM)
2.07
Spectral class
G1V (yellow)
Pri motion ra
+056
Sec motion ra
Pri motion dec
+191
Sec motion dec
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
19091+3436 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 67879 19091+3436 CHR 84 Aa,Ab 1985 2014 35 89 0.1 6.89 8.96 2.07 Y <===
Show 67879 19091+3436 STF2474 AB 1823 2017 80 263 15.9 6.78 7.88 1.10
Show 67879 19091+3436 WAL 105 AC 1940 1998 4 123 96.8 6.78 11.42 4.64
Quadruple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
113.8
Precise sep
0.061
Constellation
Lyra
SAO
67879
HIP
94076
Tycho2
2648-02148-1
HD
178911
HR
7272
ADS
12101
BD
BD+34 3439
Distance
52.33
Distance ly
170.7
last precise pa
113.8
last precise sep
0.061
 
 
ORBITAL ELEMENTS
 
 
Period (P)1296.984d (3.55y)± 0.355 Periastron (T)50574.953m (1997.347y)± 1.302 Semi-major axis (a)0.074a± 0.002
Eccentricity (e)0.597± 0.003 Inclination (i)147.29°± 0.99 Longitude of periastron (ω)83.88°± 0.87
Node (Ω)276.91°± 1.45 Note Grade1(1=Definitive, 9=Indet.)
Equinox2000 Last observation2012
label rho theta
2000-01-01 0.084 336.9
2001-01-01 0.031 141.3
2002-01-01 0.093 40.6
2003-01-01 0.097 1.6
2004-01-01 0.063 306.0
2005-01-01 0.071 70.5
2006-01-01 0.099 22.6
2007-01-01 0.088 342.1
2008-01-01 0.025 194.2
2009-01-01 0.090 45.1
2010-01-01 0.098 5.6
2011-01-01 0.069 314.9
2012-01-01 0.064 78.8
2013-01-01 0.099 26.5
2014-01-01 0.090 346.9
2015-01-01 0.032 244.5
2016-01-01 0.087 50.0
2017-01-01 0.099 9.5
2018-01-01 0.074 322.3
2019-01-01 0.056 89.3
2020-01-01 0.098 30.5
2021-01-01 0.093 351.5
2022-01-01 0.043 272.6
2023-01-01 0.083 55.2
2024-01-01 0.100 13.4
2025-01-01 0.079 328.9
2026-01-01 0.046 103.9
2027-01-01 0.096 34.6
2028-01-01 0.095 355.8
2029-01-01 0.052 289.7
2030-01-01 0.079 61.0

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

grafico orbita





wds19091%2B3436b.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
19091+3436 CHR 84 Aa,Ab 2006 13 184 0.1 6.89 8.96 G1V NODV 190904.35+343559.9
19091+3436 CHR 84 Aa,Ab 2008 16 258 0.1 6.89 8.96 G1V NODV 190904.35+343559.9
19091+3436 CHR 84 Aa,Ab 2012 33 54 0.1 6.89 8.96 G1V NO 190904.35+343559.9
19091+3436 CHR 84 Aa,Ab 2014 35 114 0.1 6.89 8.96 G1V NO 190904.35+343559.9

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