17465+2743 AC    7BC

 
 
17H 46M 25.07S +27 43' 01.4" P.A. 340.2 SEP 0.57 MAG 10.20,10.70 SP M3.5V DIST. 8.31 PC (27.11 L.Y.)
 
 
Coord 2000
17465+2743
Discov num
AC    7
Comp
BC
Coord arcsec 2000
17 46 25.07 +27 43 01.4
Date first
1854
Date last
2015
Obs
357
Pa first
59
Pa last
282
P.A. Now (θ)
340.2°
Sep first
1.9
Sep last
0.8
Sep. Now (ρ)
0.57"
Mag pri
10.20
Mag sec
10.70
delta mag (ΔM)
0.5
Spectral class
M3.5V (red)
Pri motion ra
-343
Sec motion ra
Pri motion dec
-744
Sec motion dec
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
17465+2743 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 85397 17465+2743 TRN 2 Aa,Ab 1998 2015 24 267 1.6 3.49 12.70 9.21 Y
Show Mu Her 85397 17465+2743 STF2220 A,BC 1781 2015 119 249 35.5 3.49 9.78 6.29
Show 85397 17465+2743 ABT 14 AD 1921 2002 3 5 321.1 3.49 12.33 8.84
Show 85397 17465+2743 AC 7 BC 1854 2015 357 340 0.6 10.20 10.70 0.50 Y <===
Show 85397 17465+2743 ABT 14 BC,D 1921 2000 2 10 335.0 9.78 12.33 2.55
Quintuple system
5 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Hercules
SAO
85397
HIP
86974
Tycho2
2085-03062-1
HD
161797
HR
6623
GC
24138
ADS
10786
GL
Gl 695A
BD
BD+27 2888
Bayer
Mu Herculis
Bayer name
Mu Her
Flamsteed
86 Herculis
Flamsteed name
86 Her
Distance
8.31
Distance ly
27.11
last precise pa
281.9
last precise sep
0.75
 
 
ORBITAL ELEMENTS
 
 
Period (P)43.127y± 0.013 Periastron (T)2008.335y± 0.073 Semi-major axis (a)1.385a± 0.038
Eccentricity (e)0.1796± 0.0009 Inclination (i)66.06°± 0.15 Longitude of periastron (ω)172.85°± 0.64
Node (Ω)60.07°± 0.17 Note Grade1(1=Definitive, 9=Indet.)
Equinox2000 Last observation
label rho theta
2000 0.565 132.8
2001 0.530 154.5
2002 0.563 176.4
2003 0.648 194.1
2004 0.761 207.1
2005 0.877 216.7
2006 0.983 224.0
2007 1.065 230.1
2008 1.119 235.5
2009 1.138 240.5
2010 1.122 245.4
2011 1.074 250.7
2012 0.997 256.7
2013 0.900 263.8
2014 0.791 272.7
2015 0.685 284.6
2016 0.599 300.3
2017 0.556 319.7
2018 0.571 340.2
2019 0.639 357.9
2020 0.743 11.5
2021 0.864 21.4
2022 0.990 28.9
2023 1.113 34.7
2024 1.228 39.4
2025 1.332 43.3
2026 1.423 46.7
2027 1.498 49.7
2028 1.558 52.4
2029 1.600 54.9
2030 1.625 57.4

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