18520+3731 ES 2026AB

 
 
18h 52m 01.50s +37 30' 59.5" P.A. 111 sep 20.5 mag 7.34,12.80 Sp B8V
 
 
Coord 2000
18520+3731
Discov num
ES 2026
Comp
AB
Coord arcsec 2000
18 52 01.50 +37 30 59.5
Date first
1923
Date last
2002
Obs
3
Pa first
108
Pa last
111
P.A. Now (θ)
111°
Sep first
19.7
Sep last
20.5
Sep. Now (ρ)
20.5"
Mag pri
7.34
Mag sec
12.80
delta mag (ΔM)
5.46
Spectral class
B8V (blue-white)
Pri motion ra
+001
Sec motion ra
+019
Pri motion dec
-004
Sec motion dec
-020
Notes
rPM=0.873
This double is not physical.
 
 
18520+3731 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 18520+3731 ES 2026 AB 1923 2002 3 111 20.5 7.34 12.80 5.46 <===
Show 18520+3731 ES 2026 BC 1923 2002 3 331 4.5 12.80 13.30 0.50
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
111
Precise sep
20.464
Cdsa2 id
ES 2026 AB
Constellation
Lyra
Ra deg
18.867083333333333
De deg
37.516527777777775
last precise pa
111
last precise sep
20.464
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18520+3731 ES 2026 AB 2000 2 111 20.7 7.34 12.80 B8V D 185201.50+373059.5
18520+3731 ES 2026 AB 2002 3 111 20.5 7.34 12.80 B8V D 185201.50+373059.5

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