19573+0513 A   604

 
 
19h 57m 19.48s +05 12' 45.1" P.A. 348.3 sep 0.11 mag 9.06,9.85 Sp F8 dist. 190.48 pc (621.35 l.y.)
 
 
Coord 2000
19573+0513
Discov num
A   604
Comp
Coord arcsec 2000
19 57 19.48 +05 12 45.1
Date first
1903
Date last
2017
Obs
62
Pa first
263
Pa last
350
P.A. Now (θ)
348.3°
Sep first
0.2
Sep last
0.1
Sep. Now (ρ)
0.11"
Mag pri
9.06
Mag sec
9.85
delta mag (ΔM)
0.79
Spectral class
F8 (yellow-white)
Pri motion ra
-003
Sec motion ra
Pri motion dec
-009
Sec motion dec
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
349.7
Precise sep
0.103
Constellation
Aquila
HIP
98203
HD
188914
ADS
13156
Distance
190.48
Distance ly
621.35
last precise pa
349.7
last precise sep
0.103
 
 
ORBITAL ELEMENTS
 
 
Period (P)228.15y± 17.63 Periastron (T)1935.43y± 5.63 Semi-major axis (a)0.291a± 0.016
Eccentricity (e)0.268± 0.019 Inclination (i)108°± 1.2 Longitude of periastron (ω)306°± 12.2
Node (Ω)94.7°± 1.9 Note Grade3(1=Definitive, 9=Indet.)
Equinox2000 Last observation2014
label rho theta
2000 0.128 45.7
2001 0.125 43.2
2002 0.122 40.6
2003 0.119 37.9
2004 0.117 35.0
2005 0.114 32.1
2006 0.112 29.0
2007 0.111 25.8
2008 0.109 22.5
2009 0.108 19.1
2010 0.107 15.6
2011 0.107 12.2
2012 0.106 8.6
2013 0.107 5.1
2014 0.107 1.6
2015 0.108 358.2
2016 0.109 354.8
2017 0.111 351.5
2018 0.113 348.3
2019 0.115 345.2
2020 0.117 342.3
2021 0.120 339.4
2022 0.123 336.7
2023 0.126 334.1
2024 0.129 331.7
2025 0.132 329.4
2026 0.136 327.2
2027 0.140 325.1
2028 0.144 323.1
2029 0.148 321.2
2030 0.152 319.4

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

grafico orbita





wds19573%2B0513b.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
19573+0513 A 604 1998 58 51 0.1 9.06 9.85 F8 NO 195719.48+051245.1
19573+0513 A 604 2008 59 20 0.1 9.06 9.85 F8 NO 195719.48+051245.1
19573+0513 A 604 2014 61 2 0.1 9.06 9.85 F8 NO 195719.48+051245.1
19573+0513 A 604 2017 62 350 0.1 9.06 9.85 F8 NO 195719.48+051245.1

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