19091+3436 CHR  84Aa,Ab

 
 
19h 09m 04.35s +34 35' 59.9" P.A. 322.3 sep 0.07 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)
322.3°
Sep first
0.1
Sep last
0.1
Sep. Now (ρ)
0.07"
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 35 322 0.1 6.89 8.96 2.07 Y <===
Show 19091+3436 STF2474 AB 1823 2017 79 263 15.9 6.78 7.88 1.10
Show 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
HD
178911
HR
7272
ADS
12101
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

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