16085-1006 BU  949

 
 
16H 08M 27.25S -10 06' 08.4" P.A. 235.1 SEP 0.02 MAG 7.08,8.19 SP F7V DIST. 64.68 PC (210.99 L.Y.)
 
 
Coord 2000
16085-1006
Discov num
BU  949
Comp
Coord arcsec 2000
16 08 27.25 -10 06 08.4
Date first
1880
Date last
2015
Obs
164
Pa first
198
Pa last
208
P.A. Now (θ)
235.1°
Sep first
0.6
Sep last
0.1
Sep. Now (ρ)
0.02"
Mag pri
7.08
Mag sec
8.19
delta mag (ΔM)
1.11
Spectral class
F7V (yellow-white)
Pri motion ra
+036
Sec motion ra
+036
Pri motion dec
-110
Sec motion dec
-110
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Scorpius
SAO
140981
HIP
79071
Tycho2
5616-01295-1
HD
144892
ADS
9932
BD
BD-09 4305
Distance
64.68
Distance ly
210.99
last precise pa
207.6
last precise sep
0.107
 
 
ORBITAL ELEMENTS
 
 
Period (P)56.33y± 0.2 Periastron (T)2018.34y± 0.35 Semi-major axis (a)0.289a± 0.003
Eccentricity (e)0.774± 0.016 Inclination (i)82.3°± 0.5 Longitude of periastron (ω)157.8°± 2.9
Node (Ω)198.1°± 0.5 Note Grade2(1=Definitive, 9=Indet.)
Equinox2000 Last observation2014
label rho theta
2000 0.464 196.9
2001 0.456 197.1
2002 0.446 197.3
2003 0.436 197.6
2004 0.423 197.8
2005 0.410 198.1
2006 0.394 198.4
2007 0.376 198.7
2008 0.356 199.0
2009 0.334 199.4
2010 0.310 199.8
2011 0.282 200.3
2012 0.251 201.0
2013 0.217 201.8
2014 0.177 203.0
2015 0.132 204.9
2016 0.080 209.1
2017 0.022 235.1
2018 0.046 9.5
2019 0.069 21.7
2020 0.049 34.4
2021 0.024 76.5
2022 0.034 151.5
2023 0.065 172.2
2024 0.097 179.4
2025 0.128 183.0
2026 0.157 185.3
2027 0.185 186.9
2028 0.211 188.0
2029 0.236 188.9
2030 0.259 189.7

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