20154+0042 HWE 100AB

 
 
20h 15m 22.30s +00 42' 22.1" P.A. 253 sep 1.7 mag 9.57,11.00 Sp G5
 
 
Coord 2000
20154+0042
Discov num
HWE 100
Comp
AB
Coord arcsec 2000
20 15 22.30 +00 42 22.1
Date first
1902
Date last
1994
Obs
8
Pa first
258
Pa last
253
P.A. Now (θ)
253°
Sep first
1.8
Sep last
1.7
Sep. Now (ρ)
1.7"
Mag pri
9.57
Mag sec
11.00
delta mag (ΔM)
1.43
Spectral class
G5 (yellow)
Pri motion ra
+018
Sec motion ra
+018
Pri motion dec
+009
Sec motion dec
+009
Notes
Nature of this double is uncertain.
 
 
20154+0042 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 20154+0042 HWE 100 AB 1902 1994 8 253 1.7 9.57 11.00 1.43 <===
Show 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
253.4
Precise sep
1.71
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 AB 1994 8 253 1.7 9.57 11.00 G5 201522.30+004222.1

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