19040-3804 I  1391

 
 
19h 03m 58.43s -38 04' 02.0" P.A. 113.8 sep 0.23 mag 9.91,9.71 Sp G5V dist. 120.48 pc (393.01 l.y.)
 
 
Coord 2000
19040-3804
Discov num
I  1391
Comp
Coord arcsec 2000
19 03 58.43 -38 04 02.0
Date first
1926
Date last
2017
Obs
22
Pa first
114
Pa last
111
P.A. Now (θ)
113.8°
Sep first
0.5
Sep last
0.2
Sep. Now (ρ)
0.23"
Mag pri
9.91
Mag sec
9.71
delta mag (ΔM)
0.2
Spectral class
G5V (yellow)
Pri motion ra
+005
Sec motion ra
Pri motion dec
-038
Sec motion dec
Notes
O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
111.4
Precise sep
0.235
Constellation
Corona Austrina
HIP
93625
HD
176891
Distance
120.48
Distance ly
393.01
last precise pa
111.4
last precise sep
0.235
 
 
ORBITAL ELEMENTS
 
 
Period (P)47.38y± 0.22 Periastron (T)2006.14y± 0.23 Semi-major axis (a)0.178a± 0.003
Eccentricity (e)0.641± 0.019 Inclination (i)35.8°± 1.3 Longitude of periastron (ω)56.4°± 5.7
Node (Ω)271.3°± 5.2 Note Grade3(1=Definitive, 9=Indet.)
Equinox2000 Last observation2014
label rho theta
2000 0.138 207.8
2001 0.127 216.4
2002 0.115 226.6
2003 0.103 239.3
2004 0.089 255.7
2005 0.073 278.9
2006 0.057 315.4
2007 0.056 5.3
2008 0.075 42.1
2009 0.099 62.5
2010 0.121 75.0
2011 0.142 83.7
2012 0.160 90.3
2013 0.175 95.7
2014 0.189 100.2
2015 0.201 104.1
2016 0.212 107.6
2017 0.221 110.8
2018 0.229 113.8
2019 0.236 116.5
2020 0.242 119.2
2021 0.246 121.7
2022 0.250 124.1
2023 0.253 126.5
2024 0.256 128.8
2025 0.257 131.1
2026 0.258 133.3
2027 0.258 135.6
2028 0.258 137.8
2029 0.257 140.1
2030 0.255 142.4

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

grafico orbita





wds19040-3804b.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
19040-3804 I 1391 1991 18 156 0.2 9.91 9.71 G5V NO 190358.43-380402.0
19040-3804 I 1391 2009 20 66 0.1 9.91 9.71 G5V NO 190358.43-380402.0
19040-3804 I 1391 2014 21 103 0.2 9.91 9.71 G5V O 190358.43-380402.0
19040-3804 I 1391 2017 22 111 0.2 9.91 9.71 G5V O 190358.43-380402.0

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