18598-1927 DYL  25AB

 
 
18h 59m 45.80s -19 26' 57.7" P.A. 167 sep 7.4 mag 12.90,12.00
 
 
Coord 2000
18598-1927
Discov num
DYL  25
Comp
AB
Coord arcsec 2000
18 59 45.80 -19 26 57.7
Date first
1984
Date last
2000
Obs
4
Pa first
166
Pa last
167
P.A. Now (θ)
167°
Sep first
7.4
Sep last
7.4
Sep. Now (ρ)
7.4"
Mag pri
12.90
Mag sec
12.00
delta mag (ΔM)
0.9
Spectral class
Pri motion ra
+007
Sec motion ra
+014
Pri motion dec
+030
Sec motion dec
-021
Notes
rPM=1.671
This double is not physical.
 
 
18598-1927 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 18598-1927 DYL 25 AB 1984 2000 4 167 7.4 12.90 12.00 0.90 <===
Show 18598-1927 DYL 25 BC 1984 2000 2 196 4.8 12.00 15.00 3.00
Show 18598-1927 DYL 25 BD 1984 2000 2 266 5.6 12.00 15.10 3.10
Quadruple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
166.5
Precise sep
7.4
Constellation
Sagittarius
last precise pa
166.5
last precise sep
7.4
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18598-1927 DYL 25 AB 2000 2 167 7.4 12.00 12.00 D 185945.80-192657.7

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