18078+2606 CHR  67Aa,Ab

 
 
18H 07M 49.56S +26 06' 04.4" P.A. 213.6 SEP 0.02 MAG 5.90,8.80 SP A3V DIST. 49.6 PC (161.8 L.Y.)
 
 
Coord 2000
18078+2606
Discov num
CHR  67
Comp
Aa,Ab
Coord arcsec 2000
18 07 49.56 +26 06 04.4
Date first
1985
Date last
2009
Obs
15
Pa first
175
Pa last
316
P.A. Now (θ)
213.6°
Sep first
0.1
Sep last
0.2
Sep. Now (ρ)
0.02"
Mag pri
5.90
Mag sec
8.80
delta mag (ΔM)
2.9
Spectral class
A3V (white)
Pri motion ra
-010
Sec motion ra
Pri motion dec
+026
Sec motion dec
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
18078+2606 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 85753 18078+2606 CHR 67 Aa,Ab 1985 2009 15 214 0.0 5.90 8.80 2.90 Y <===
Show 100 Her 85753 18078+2606 STF2280 AB 1777 2016 216 183 14.4 5.81 5.84 0.03
Show 85753 18078+2606 STF2280 AC 1897 2000 5 127 79.9 5.87 11.80 5.93
Quadruple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Hercules
SAO
85753
HIP
88818
Tycho2
2095-03224-1
HD
166045
HR
6781
GC
24721
ADS
11089
BD
BD+26 3178
Flamsteed
100 Herculis
Flamsteed name
100 Her
Distance
49.6
Distance ly
161.8
last precise pa
316.1
last precise sep
0.242
 
 
ORBITAL ELEMENTS
 
 
Period (P)15.83y Periastron (T)1986.27y Semi-major axis (a)0.192a
Eccentricity (e)0.936 Inclination (i)47.2° Longitude of periastron (ω)295.9°
Node (Ω)197.9° Note Grade3(1=Definitive, 9=Indet.)
Equinox2000 Last observation1997
label rho theta
2000 0.190 341.9
2001 0.136 349.5
2002 0.028 28.6
2003 0.091 284.1
2004 0.146 298.8
2005 0.186 306.1
2006 0.218 311.0
2007 0.242 314.8
2008 0.260 318.0
2009 0.272 320.8
2010 0.279 323.4
2011 0.280 326.0
2012 0.276 328.5
2013 0.265 331.3
2014 0.247 334.3
2015 0.221 338.0
2016 0.182 342.9
2017 0.124 351.5
2018 0.022 213.6
2019 0.102 287.8
2020 0.153 300.3
2021 0.192 307.1
2022 0.223 311.7
2023 0.246 315.4
2024 0.263 318.5
2025 0.274 321.2
2026 0.280 323.8
2027 0.280 326.4
2028 0.274 329.0
2029 0.263 331.8
2030 0.243 334.9

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