18188-1347 DCH  38CD

 
 
18h 18m 49.37s -13 46' 50.1" P.A. 90 sep 1.4 mag 8.91,14.56 Sp B5
 
 
Coord 2000
18188-1347
Discov num
DCH  38
Comp
CD
Coord arcsec 2000
18 18 49.37 -13 46 50.1
Date first
1998
Date last
1998
Obs
1
Pa first
90
Pa last
90
P.A. Now (θ)
90°
Sep first
1.4
Sep last
1.4
Sep. Now (ρ)
1.4"
Mag pri
8.91
Mag sec
14.56
delta mag (ΔM)
5.65
Spectral class
B5 (blue-white)
Pri motion ra
+001
Sec motion ra
Pri motion dec
+000
Sec motion dec
Notes
K (K-band or other infrared magnitudes)
Nature of this double is uncertain.
 
 
18188-1347 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 18188-1347 DCH 37 AB 1998 1998 1 307 0.7 10.96 13.43 2.47
Show 18188-1347 DCH 38 CD 1998 1998 1 90 1.4 8.91 14.56 5.65 <===
Quadruple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
89.6
Precise sep
1.449
Constellation
Serpens
Tycho2
5689-00133-1
last precise pa
89.6
last precise sep
1.449
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18188-1347 DCH 38 CD 1998 1 90 1.4 11.83   B5 181849.37-134650.1

If you need more information about this double, apply for a data request form to the WDS.