19525+0100 EVS   2AB (Eta Aql)

 
 
19h 52m 28.36s +01 00' 20.4" P.A. 93.00 sep 0.7 mag 1.79,9.18 Sp F6Iab+B9V dist. 423.73 pc (1382.21 l.y.)
 
 
Coord 2000
19525+0100
Discov num
EVS   2
Comp
AB
Coord arcsec 2000
19 52 28.36 +01 00 20.4
Date first
2012
Date last
2012
Obs
1
Pa first
93
Pa last
93
P.A. Now (θ)
93°
Sep first
0.7
Sep last
0.7
Sep. Now (ρ)
0.7"
Mag pri
1.79
Mag sec
9.18
delta mag (ΔM)
7.39
Spectral class
F6Iab+B9V (yellow-white/blue-white)
Pri motion ra
+007
Sec motion ra
Pri motion dec
-008
Sec motion dec
Notes
N K (See Notes, K-band or other infrared magnitudes)
Visually invisible, K-band or other infrared star Nature of this double is uncertain.
 
 
19525+0100 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show Eta Aql 125159 19525+0100 EVS 2 AB 2012 2012 1 93 0.7 1.79 9.18 7.39 <===
Show 125159 19525+0100 KRV 27 AC 1999 2015 2 92 135.8 7.00 20.50 13.50
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
92.8
Precise sep
0.655
Name
Eta Aql
Constellation
Aquila
SAO
125159
HIP
97804
Tycho2
0480-03027-1
HD
187929
HR
7570
GC
27517
BD
BD+00 4337
Bayer
Eta Aquilae
Bayer name
Eta Aql
Flamsteed
55 Aquilae
Flamsteed name
55 Aql
Distance
423.73
Distance ly
1382.21
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
19525+0100 EVS 2 AB 2012 1 93 0.7 1.79 9.18 F6Iab+B9V N K 195228.36+010020.4

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