19542+0157 ABT9002BC

 
 
19h 54m 25.74s +01 56' 29.0" P.A. 30 sep 94.5 mag 9.03,12.26 Sp K0 dist. 42.68 pc (139.22 l.y.)
 
 
Coord 2000
19542+0157
Discov num
ABT9002
Comp
BC
Coord arcsec 2000
19 54 25.74 +01 56 29.0
Date first
1921
Date last
2000
Obs
3
Pa first
38
Pa last
30
P.A. Now (θ)
30°
Sep first
77.2
Sep last
94.5
Sep. Now (ρ)
94.5"
Mag pri
9.03
Mag sec
12.26
delta mag (ΔM)
3.23
Spectral class
K0 (yellow-orange)
Pri motion ra
-003
Sec motion ra
-004
Pri motion dec
-269
Sec motion dec
-006
Notes
N (See Notes)
rPM=0.978
This double is not physical.
 
 
19542+0157 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 19542+0157 HZG 14 AB 1907 2004 19 92 161.0 8.89 9.03 0.14
Show 19542+0157 ABT9002 BC 1921 2000 3 30 94.5 9.03 12.26 3.23 <===
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
29.5
Precise sep
94.513
Constellation
Aquila
HIP
97950
Tycho2
0485-01108-1
HD
188311
BD
BD+01 4135
Distance
42.68
Distance ly
139.22
last precise pa
29.5
last precise sep
94.513
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
19542+0157 ABT9002 BC 1921 1 38 77.2 9.03 11.70 K0 N 195425.74+015628.9
19542+0157 ABT9002 BC 1999 2 29 94.4 9.03 12.37 K0 N D 195425.74+015629.0
19542+0157 ABT9002 BC 2000 3 30 94.5 9.03 12.37 K0 N D 195425.74+015629.0

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