20154+0042 HWE 100AC

 
 
20h 15m 22.30s +00 42' 22.1" P.A. 271.00 sep 31.3 mag 9.57,11.01 Sp G5
 
 
Coord 2000
20154+0042
Discov num
HWE 100
Comp
AC
Coord arcsec 2000
20 15 22.30 +00 42 22.1
Date first
1879
Date last
2015
Obs
14
Pa first
271
Pa last
271
P.A. Now (θ)
271°
Sep first
31.2
Sep last
31.3
Sep. Now (ρ)
31.3"
Mag pri
9.57
Mag sec
11.01
delta mag (ΔM)
1.44
Spectral class
G5 (yellow)
Pri motion ra
+021
Sec motion ra
+020
Pri motion dec
+012
Sec motion dec
+010
Notes
rPM=0.092 (< 0.3, Physical double)
This double is physical.
 
 
20154+0042 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 125615 20154+0042 HWE 100 AB 1902 1994 8 253 1.7 9.57 11.00 1.43
Show 125615 20154+0042 HWE 100 AC 1879 2015 14 271 31.3 9.57 11.01 1.44 <===
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
270.7
Precise sep
31.254
Constellation
Aquila
SAO
125615
Tycho2
0496-01289-1
Gaia DR2
11579359360
HD
192542
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20154+0042 HWE 100 AC 2000 11 271 31.2 9.57 11.01 D 201522.30+004222.1
20154+0042 HWE 100 AC 2010 12 271 31.2 9.57 11.01 D 201522.30+004222.1
20154+0042 HWE 100 AC 2015 14 271 31.3 9.57 11.01 G5 201522.30+004222.1

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