19496-5525 I   658

 
 
19h 49m 37.33s -55 25' 27.5" P.A. 131.7 sep 1.23 mag 9.16,10.06 Sp G5V dist. 59.99 pc (195.69 l.y.)
 
 
Coord 2000
19496-5525
Discov num
I   658
Comp
Coord arcsec 2000
19 49 37.33 -55 25 27.5
Date first
1909
Date last
2015
Obs
31
Pa first
260
Pa last
132
P.A. Now (θ)
131.7°
Sep first
0.6
Sep last
1.2
Sep. Now (ρ)
1.23"
Mag pri
9.16
Mag sec
10.06
delta mag (ΔM)
0.9
Spectral class
G5V (yellow)
Pri motion ra
-007
Sec motion ra
-007
Pri motion dec
+000
Sec motion dec
+000
Notes
O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
132.4
Precise sep
1.21
Constellation
Telescopium
HIP
97548
Tycho2
8779-00757-1
HD
186836
Distance
59.99
Distance ly
195.69
last precise pa
132.4
last precise sep
1.21
 
 
ORBITAL ELEMENTS
 
 
Period (P)416.8y Periastron (T)1895.4y Semi-major axis (a)1.098a
Eccentricity (e)0.474 Inclination (i)134° Longitude of periastron (ω)169.8°
Node (Ω)98.7° Note Grade4(1=Definitive, 9=Indet.)
Equinox2000 Last observation2015
label rho theta
2000 1.086 140.2
2001 1.095 139.7
2002 1.103 139.2
2003 1.112 138.7
2004 1.120 138.1
2005 1.129 137.6
2006 1.137 137.1
2007 1.145 136.7
2008 1.153 136.2
2009 1.162 135.7
2010 1.170 135.2
2011 1.178 134.8
2012 1.186 134.3
2013 1.194 133.9
2014 1.201 133.4
2015 1.209 133.0
2016 1.217 132.5
2017 1.225 132.1
2018 1.232 131.7
2019 1.240 131.3
2020 1.247 130.9
2021 1.255 130.5
2022 1.262 130.1
2023 1.269 129.7
2024 1.276 129.3
2025 1.283 128.9
2026 1.291 128.5
2027 1.297 128.1
2028 1.304 127.7
2029 1.311 127.4
2030 1.318 127.0

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

grafico orbita





wds19496-5525e.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
19496-5525 I 658 1991 29 148 1.0 9.16 10.06 G5V NOD 194937.33-552527.5
19496-5525 I 658 2009 30 135 1.2 9.16 10.06 G5V NOD 194937.33-552527.5
19496-5525 I 658 2015 31 133 1.2 9.16 10.06 G5V O 194937.33-552527.5

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