15318+2135 COU 191AC

 
 
15h 31m 48.91s +21 34' 42.7" P.A. 87 sep 11.4 mag 10.16,13.00 Sp K0
 
 
Coord 2000
15318+2135
Discov num
COU 191
Comp
AC
Coord arcsec 2000
15 31 48.91 +21 34 42.7
Date first
1967
Date last
2001
Obs
3
Pa first
92
Pa last
87
P.A. Now (θ)
87°
Sep first
12.0
Sep last
11.4
Sep. Now (ρ)
11.4"
Mag pri
10.16
Mag sec
13.00
delta mag (ΔM)
2.84
Spectral class
K0 (yellow-orange)
Pri motion ra
+013
Sec motion ra
-004
Pri motion dec
-019
Sec motion dec
+005
Notes
rPM=1.278
This double is not physical.
 
 
15318+2135 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 15318+2135 COU 191 AB 1967 1997 2 18 5.3 10.16 14.50 4.34
Show 15318+2135 COU 191 AC 1967 2001 3 87 11.4 10.16 13.00 2.84 <===
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
86.8
Precise sep
11.432
Constellation
Serpens
Tycho2
1500-00978-1
last precise pa
86.8
last precise sep
11.432
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
15318+2135 COU 191 AC 1997 2 87 11.4 10.16 13.00 D 153148.91+213442.7
15318+2135 COU 191 AC 2001 3 87 11.4 10.16 13.00 D 153148.91+213442.7
15318+2135 COU 191 AC 2010 4 84 11.6 10.16 13.00 K0 153148.91+213442.7

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