20113-0049 MKT  10Aa,Ab

 
 
20h 11m 18.26s -00 49' 17.3" P.A. 179 mag 3.23, Sp B9.5III dist. 87.8 pc (286.4 l.y.)
 
 
Coord 2000
20113-0049
Discov num
MKT  10
Comp
Aa,Ab
Coord arcsec 2000
20 11 18.26 -00 49 17.3
Date first
1990
Date last
1992
Obs
21
Pa first
57
Pa last
179
P.A. Now (θ)
179°
Sep first
0.0
Sep last
0.0
Sep. Now (ρ)
0"
Mag pri
3.23
Mag sec
delta mag (ΔM)
Spectral class
B9.5III (blue-white)
Pri motion ra
+038
Sec motion ra
Pri motion dec
+004
Sec motion dec
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
20113-0049 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 144150 20113-0049 MKT 10 Aa,Ab 1990 1992 21 179 0.0 3.23 Y <===
Show 144150 20113-0049 ISO 12 Aa,Ac 1987 1987 1 44 1.0 3.23
Show 65 Aql 144150 20113-0049 BU 1540 AB 1901 2008 4 259 115.8 3.23 13.00 9.77
Quadruple system
2 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
179
Precise sep
0.001
Constellation
Aquila
SAO
144150
HIP
99473
HD
191692
HR
7710
GC
28010
Bayer
Theta Aquilae
Bayer name
The Aql
Flamsteed
65 Aquilae
Flamsteed name
65 Aql
Distance
87.8
Distance ly
286.4
last precise pa
179
last precise sep
0.001
 
 
ORBITAL ELEMENTS
 
 
Period (P)17.122d± 0.001 Periastron (T)47801.7d (1989.752y)± 0.1 Semi-major axis (a)3.2m± 0.1
Eccentricity (e)0.6± 0.02 Inclination (i)143.5°± 3 Longitude of periastron (ω)215°± 10
Node (Ω)99°± 5 Note Grade1(1=Definitive, 9=Indet.)
Equinox2000 Last observation1992
label rho theta
2000-01-01 0.004 57.8
2001-01-01 0.002 319.6
2002-01-01 0.004 94.0
2003-01-01 0.004 58.4
2004-01-01 0.002 323.4
2005-01-01 0.004 94.6
2006-01-01 0.004 59.0
2007-01-01 0.002 327.1
2008-01-01 0.004 95.3
2009-01-01 0.005 59.5
2010-01-01 0.002 330.5
2011-01-01 0.004 95.9
2012-01-01 0.005 60.1
2013-01-01 0.002 333.9
2014-01-01 0.004 96.5
2015-01-01 0.005 60.6
2016-01-01 0.002 337.1
2017-01-01 0.004 97.2
2018-01-01 0.005 61.2
2019-01-01 0.002 340.1
2020-01-01 0.004 97.9
2021-01-01 0.005 61.7
2022-01-01 0.002 343.0
2023-01-01 0.004 98.5
2024-01-01 0.005 62.2
2025-01-01 0.002 345.8
2026-01-01 0.004 99.2
2027-01-01 0.005 62.7
2028-01-01 0.002 348.5
2029-01-01 0.004 99.9
2030-01-01 0.005 63.3

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






wds20113-0049a.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
20113-0049 MKT 10 Aa,Ab 1992 21 179 0.0 3.23   B9.5III NO 201118.26-004917.3

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