15355-4751 HDS2191

 
 
15H 35M 28.34S -47 50' 56.7" P.A. 202.3 SEP 0.29 MAG 9.41,10.06 SP G8IV/V DIST. 63.05 PC (205.67 L.Y.)
 
 
Coord 2000
15355-4751
Discov num
HDS2191
Comp
Coord arcsec 2000
15 35 28.34 -47 50 56.7
Date first
1991
Date last
2014
Obs
5
Pa first
202
Pa last
202
P.A. Now (θ)
202.3°
Sep first
0.3
Sep last
0.3
Sep. Now (ρ)
0.29"
Mag pri
9.41
Mag sec
10.06
delta mag (ΔM)
0.65
Spectral class
G8IV/V (yellow)
Pri motion ra
+062
Sec motion ra
Pri motion dec
-080
Sec motion dec
Notes
O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Lupus
SAO
225940
HIP
76328
Tycho2
8300-01231-1
HD
138676
CD
CD-4710123
CP
CP-47 7232
Distance
63.05
Distance ly
205.67
last precise pa
201.7
last precise sep
0.265
 
 
ORBITAL ELEMENTS
 
 
Period (P)62.52y± 14.96 Periastron (T)2005.25y± 1.1 Semi-major axis (a)0.302a± 0.037
Eccentricity (e)0.315± 0.243 Inclination (i)88.6°± 0.9 Longitude of periastron (ω)267.1°± 14.6
Node (Ω)201.9°± 1.1 Note Grade4(1=Definitive, 9=Indet.)
Equinox2000 Last observation2014
label rho theta
2000 0.200 22.7
2001 0.171 23.1
2002 0.138 23.6
2003 0.102 24.5
2004 0.062 26.4
2005 0.022 35.4
2006 0.022 188.4
2007 0.063 197.4
2008 0.102 199.3
2009 0.139 200.2
2010 0.172 200.7
2011 0.201 201.0
2012 0.225 201.3
2013 0.246 201.5
2014 0.262 201.7
2015 0.275 201.9
2016 0.284 202.0
2017 0.289 202.2
2018 0.291 202.3
2019 0.291 202.5
2020 0.288 202.6
2021 0.282 202.8
2022 0.274 202.9
2023 0.265 203.1
2024 0.253 203.3
2025 0.240 203.5
2026 0.226 203.7
2027 0.210 204.0
2028 0.193 204.3
2029 0.175 204.6
2030 0.156 205.1

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

grafico orbita





grafico misure orbit6
Measures: green=micrometric, blue=interferometric, purple=photographic