19491-6149 I   120AB

 
 
19h 49m 07.25s -61 48' 53.2" P.A. 173 sep 0.46 mag 8.31,8.02 Sp F7/8V dist. 56.31 pc (183.68 l.y.)
 
 
Coord 2000
19491-6149
Discov num
I   120
Comp
AB
Coord arcsec 2000
19 49 07.25 -61 48 53.2
Date first
1896
Date last
2014
Obs
55
Pa first
185
Pa last
176
P.A. Now (θ)
173°
Sep first
0.8
Sep last
0.4
Sep. Now (ρ)
0.46"
Mag pri
8.31
Mag sec
8.02
delta mag (ΔM)
0.29
Spectral class
F7/8V (yellow-white)
Pri motion ra
+038
Sec motion ra
Pri motion dec
-096
Sec motion dec
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
19491-6149 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 254655 19491-6149 I 120 AB 1896 2014 55 173 0.5 8.31 8.02 0.29 Y <===
Show 254655 19491-6149 HJ 5141 AB,C 1836 2013 16 340 11.8 7.36 10.45 3.09
Triple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
175.6
Precise sep
0.39
Constellation
Pavo
SAO
254655
HIP
97508
Tycho2
9085-00729-1
HD
186602
CP
CP-62 6108
Distance
56.31
Distance ly
183.68
last precise pa
175.6
last precise sep
0.39
 
 
ORBITAL ELEMENTS
 
 
Period (P)65.1y Periastron (T)1997.3y Semi-major axis (a)0.346a
Eccentricity (e)0.68 Inclination (i)149° Longitude of periastron (ω)141°
Node (Ω)118° Note Grade3(1=Definitive, 9=Indet.)
Equinox2000 Last observation
label rho theta
2000 0.156 261.7
2001 0.178 246.7
2002 0.200 235.0
2003 0.222 225.7
2004 0.244 218.0
2005 0.265 211.6
2006 0.286 206.1
2007 0.306 201.4
2008 0.325 197.2
2009 0.344 193.5
2010 0.361 190.1
2011 0.378 187.1
2012 0.394 184.3
2013 0.409 181.7
2014 0.424 179.3
2015 0.437 177.1
2016 0.450 175.0
2017 0.462 173.0
2018 0.474 171.1
2019 0.484 169.3
2020 0.494 167.5
2021 0.503 165.8
2022 0.511 164.2
2023 0.519 162.7
2024 0.525 161.1
2025 0.531 159.6
2026 0.537 158.2
2027 0.541 156.7
2028 0.545 155.3
2029 0.548 153.9
2030 0.550 152.6

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

grafico orbita





wds19491-6149a.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
19491-6149 I 120 AB 1991 52 277 0.2 8.31 8.02 F7/8V NO 194907.25-614853.2
19491-6149 I 120 AB 2009 53 189 0.3 8.31 8.02 F7/8V NO 194907.25-614853.2
19491-6149 I 120 AB 2013 54 188 0.4 8.31 8.02 F7/8V NO 194907.25-614853.2
19491-6149 I 120 AB 2014 55 176 0.4 8.31 8.02 F7/8V NO 194907.25-614853.2

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