18582+1722 CHR  82Aa,Ab

 
 
18h 58m 14.75s +17 21' 39.4" P.A. 281.8 mag 5.44, Sp F8II dist. 473.93 pc (1545.96 l.y.)
 
 
Coord 2000
18582+1722
Discov num
CHR  82
Comp
Aa,Ab
Coord arcsec 2000
18 58 14.75 +17 21 39.4
Date first
1984
Date last
1990
Obs
3
Pa first
175
Pa last
157
P.A. Now (θ)
281.8°
Sep first
0.2
Sep last
0.2
Sep. Now (ρ)
0"
Mag pri
5.44
Mag sec
delta mag (ΔM)
Spectral class
F8II (yellow-white)
Pri motion ra
-002
Sec motion ra
Pri motion dec
-009
Sec motion dec
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
18582+1722 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 104296 18582+1722 CHR 82 Aa,Ab 1984 1990 3 282 0.0 5.44 Y <===
Show 18582+1722 HO 91 AB 1886 2011 15 146 6.9 5.44 10.12 4.68
Triple system
2 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
156.9
Precise sep
0.229
Other name
FF Aql
Var name
FF Aql
Constellation
Aquila
SAO
104296
HIP
93124
HD
176155
HR
7165
GC
26052
ADS
11884
Distance
473.93
Distance ly
1545.96
last precise pa
156.9
last precise sep
0.229
 
 
ORBITAL ELEMENTS
 
 
Period (P)1434d (3.93y)± 1 Periastron (T)2003.29y± 0.04 Semi-major axis (a)3.36m± 0.4
Eccentricity (e)0.09± 0.01 Inclination (i)33°± 5 Longitude of periastron (ω)327°± 4
Node (Ω)61.3°± 9 Note Grade5(1=Definitive, 9=Indet.)
Equinox Last observation
label rho theta
2000-01-01 0.003 91.4
2001-01-01 0.003 187.7
2002-01-01 0.003 258.4
2003-01-01 0.003 0.7
2004-01-01 0.003 98.2
2005-01-01 0.003 193.7
2006-01-01 0.003 263.8
2007-01-01 0.003 9.3
2008-01-01 0.003 105.2
2009-01-01 0.003 199.5
2010-01-01 0.003 269.5
2011-01-01 0.003 17.7
2012-01-01 0.003 112.4
2013-01-01 0.003 205.1
2014-01-01 0.003 275.5
2015-01-01 0.003 25.6
2016-01-01 0.003 119.7
2017-01-01 0.003 210.5
2018-01-01 0.003 281.8
2019-01-01 0.003 33.3
2020-01-01 0.003 127.1
2021-01-01 0.004 215.7
2022-01-01 0.003 288.6
2023-01-01 0.003 40.6
2024-01-01 0.003 134.6
2025-01-01 0.004 220.8
2026-01-01 0.003 295.8
2027-01-01 0.003 47.6
2028-01-01 0.003 142.2
2029-01-01 0.004 225.7
2030-01-01 0.003 303.4

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

grafico orbita





wds18582%2B1722a.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
18582+1722 CHR 82 Aa,Ab 1990 3 157 0.2 5.44   F8II N 185814.75+172139.4

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