17153-2636 SHJ 243AB (36 Oph)

 
 
17H 15M 20.78S -26 36' 06.1" P.A. 139.9 SEP 5.06 MAG 5.12,5.12 SP K5VE+K1V DIST. 5.93 PC (19.34 L.Y.)
 
 
Coord 2000
17153-2636
Discov num
SHJ 243
Comp
AB
Coord arcsec 2000
17 15 20.78 -26 36 06.1
Date first
1777
Date last
2016
Obs
275
Pa first
0
Pa last
143
P.A. Now (θ)
139.9°
Sep first
13.0
Sep last
5.4
Sep. Now (ρ)
5.06"
Mag pri
5.12
Mag sec
5.12
delta mag (ΔM)
0
Spectral class
K5Ve+K1V (yellow-orange/yellow-orange)
Pri motion ra
-051
Sec motion ra
-047
Pri motion dec
-115
Sec motion dec
-114
Notes
N O P (See Notes, Orbital solution, 100-year proper motion)
This double is physical.
 
 
17153-2636 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 36 Oph 185199 17153-2636 SHJ 243 AB 1777 2016 275 140 5.1 5.12 5.12 0.00 Y <===
Show 185198 17153-2636 SHJ 243 AC 1913 2000 7 74 731.6 5.12 6.46 1.34
Show 185198 17153-2636 SHJ 243 AD 1822 2000 12 338 276.9 5.12 7.80 2.68
Show 185199 17153-2636 SHJ 243 AE 1898 2000 5 313 38.2 5.12 12.30 7.18
Show 185199 17153-2636 SHJ 243 BD 1825 1991 6 337 272.3 5.12 7.80 2.68
Quintuple system
5 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name
36 Oph
Other name
A Oph
Constellation
Ophiuchus
SAO
185199
HIP
84405
Tycho2
6820-00326-2
HD
155885
HR
6401
GC
23274
ADS
10417
GL
Gl 663A
CD
CD-2612026
CP
CP-26 5858
Flamsteed
36 Ophiuchi
Flamsteed name
36 Oph
Distance
5.93
Distance ly
19.34
last precise pa
142.7
last precise sep
5.36
 
 
ORBITAL ELEMENTS
 
 
Period (P)470.9y Periastron (T)1677.86y Semi-major axis (a)13a
Eccentricity (e)0.916 Inclination (i)99.794° Longitude of periastron (ω)89.8°
Node (Ω)94.155° Note Grade4(1=Definitive, 9=Indet.)
Equinox Last observation
label rho theta
2000 4.837 146.4
2001 4.850 146.0
2002 4.862 145.6
2003 4.874 145.3
2004 4.886 144.9
2005 4.899 144.5
2006 4.911 144.2
2007 4.924 143.8
2008 4.936 143.4
2009 4.949 143.1
2010 4.961 142.7
2011 4.974 142.4
2012 4.986 142.0
2013 4.999 141.6
2014 5.011 141.3
2015 5.024 140.9
2016 5.036 140.6
2017 5.049 140.2
2018 5.061 139.9
2019 5.074 139.6
2020 5.086 139.2
2021 5.099 138.9
2022 5.111 138.5
2023 5.124 138.2
2024 5.136 137.9
2025 5.148 137.5
2026 5.161 137.2
2027 5.173 136.9
2028 5.185 136.5
2029 5.197 136.2
2030 5.209 135.9

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