16391-3713 FIN 340AB

 
 
16h 39m 05.24s -37 13' 02.1" P.A. 51.4 sep 0.05 mag 6.60,6.60 Sp B9-A0V+B dist. 112.11 pc (365.7 l.y.)
 
 
Coord 2000
16391-3713
Discov num
FIN 340
Comp
AB
Coord arcsec 2000
16 39 05.24 -37 13 02.1
Date first
1954
Date last
2015
Obs
15
Pa first
147
Pa last
3
P.A. Now (θ)
51.4°
Sep first
0.1
Sep last
0.0
Sep. Now (ρ)
0.05"
Mag pri
6.60
Mag sec
6.60
delta mag (ΔM)
0
Spectral class
B9-A0V+B (blue-white/white)
Pri motion ra
-012
Sec motion ra
Pri motion dec
-047
Sec motion dec
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
16391-3713 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 207878 16391-3713 FIN 340 AB 1954 2015 15 51 0.0 6.60 6.60 0.00 Y <===
Show 207878 16391-3713 HJ 4870 AB,C 1834 1999 10 10 34.6 5.93 11.34 5.41
Triple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
2.5
Precise sep
0.045
Constellation
Scorpius
SAO
207878
HIP
81523
Tycho2
7358-00409-1
HD
149886
HR
6178
CD
CD-3610879
CP
CP-36 7010
Distance
112.11
Distance ly
365.7
last precise pa
2.5
last precise sep
0.045
 
 
ORBITAL ELEMENTS
 
 
Period (P)23.99y± 0.06 Periastron (T)2013.87y± 0.02 Semi-major axis (a)0.102a± 0
Eccentricity (e)0.621± 0.004 Inclination (i)55.4°± 0.4 Longitude of periastron (ω)143.3°± 0.8
Node (Ω)149.6°± 0.4 Note Grade2(1=Definitive, 9=Indet.)
Equinox2000 Last observation2014
label rho theta
2000 0.132 119.8
2001 0.139 123.6
2002 0.145 127.1
2003 0.148 130.3
2004 0.150 133.4
2005 0.149 136.5
2006 0.147 139.7
2007 0.141 143.1
2008 0.133 146.8
2009 0.121 151.1
2010 0.104 156.6
2011 0.083 164.5
2012 0.056 179.3
2013 0.028 226.2
2014 0.036 314.1
2015 0.046 352.6
2016 0.048 23.8
2017 0.053 51.4
2018 0.063 72.1
2019 0.076 86.6
2020 0.089 96.9
2021 0.101 104.6
2022 0.113 110.6
2023 0.123 115.6
2024 0.132 119.9
2025 0.139 123.7
2026 0.145 127.1
2027 0.148 130.3
2028 0.150 133.5
2029 0.149 136.6
2030 0.146 139.7

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

grafico orbita





wds16391-3713a.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
16391-3713 FIN 340 AB 1991 8 17 0.0 6.60 6.60 B9-A0V+B N 163905.24-371302.1
16391-3713 FIN 340 AB 2009 11 152 0.1 6.60 6.60 B9-A0V+B N 163905.24-371302.1
16391-3713 FIN 340 AB 2011 12 168 0.1 6.60 6.60 B9-A0V B NO 163905.24-371302.1
16391-3713 FIN 340 AB 2012 13 190 0.0 6.60 6.60 B9-A0V B NO 163905.24-371302.1
16391-3713 FIN 340 AB 2014 14 323 0.0 6.60 6.60 B9-A0V+B NO 163905.24-371302.1
16391-3713 FIN 340 AB 2015 15 2 0.0 6.60 6.60 B9-A0V+B NO 163905.24-371302.1

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