18455+0530 STF2375AB

 
 
18H 45M 28.36S +05 30' 00.4" P.A. 121 SEP 2.4 MAG 6.34,6.73 SP A1V DIST. 188.68 PC (615.47 L.Y.)
 
 
Coord 2000
18455+0530
Discov num
STF2375
Comp
AB
Coord arcsec 2000
18 45 28.36 +05 30 00.4
Date first
1825
Date last
2016
Obs
300
Pa first
108
Pa last
121
P.A. Now (θ)
121°
Sep first
2.2
Sep last
2.4
Sep. Now (ρ)
2.4"
Mag pri
6.34
Mag sec
6.73
delta mag (ΔM)
0.39
Spectral class
A1V (white)
Pri motion ra
+009
Sec motion ra
+009
Pri motion dec
-003
Sec motion dec
-003
Notes
N V (See Notes, Proper motion indicates physical)
This double is physical.
 
 
18455+0530 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 123886 18455+0530 FIN 332 Aa,Ab 1953 2015 77 299 0.1 6.50 6.60 0.10 Y
Show 123886 18455+0530 STF2375 AB 1825 2016 300 121 2.4 6.34 6.73 0.39 <===
Show 123886 18455+0530 FIN 332 Ba,Bb 1953 2015 55 330 0.1 7.19 7.95 0.76 Y
Quadruple system
2 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Serpens
SAO
123886
HIP
92027
HD
173495
HR
7048
BD
BD+05 3941
Distance
188.68
Distance ly
615.47
last precise pa
121.1
last precise sep
2.42