15304+3935 LAW  23AB

 
 
15h 30m 21.88s +39 35' 22.0" P.A. 162 sep 31.8 mag 15.30,18.32 Sp M2.3+M4.3
 
 
Coord 2000
15304+3935
Discov num
LAW  23
Comp
AB
Coord arcsec 2000
15 30 21.88 +39 35 22.0
Date first
1998
Date last
2011
Obs
4
Pa first
161
Pa last
162
P.A. Now (θ)
162°
Sep first
31.1
Sep last
31.8
Sep. Now (ρ)
31.8"
Mag pri
15.30
Mag sec
18.32
delta mag (ΔM)
3.02
Spectral class
M2.3+M4.3 (red/red)
Pri motion ra
-020
Sec motion ra
-027
Pri motion dec
+037
Sec motion dec
+037
Notes
N V R (See Notes, Proper motion indicates physical, Red magnitudes)
rPM=0.153 (< 0.3, Physical double)
This double is physical.
 
 
15304+3935 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 15304+3935 LAW 23 Aa,Ab 2009 2009 2 94 0.2 15.30
Show 15304+3935 LAW 23 AB 1998 2011 4 162 31.8 15.30 18.32 3.02 <===
Triple system
2 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
162
Precise sep
31.8
Constellation
Bootes
last precise pa
162
last precise sep
31.8
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
15304+3935 LAW 23 AB 2009 1 162 31.8 15.80 18.20 M2.0+M4.0 153021.89+393521.9
15304+3935 LAW 23 AB 2011 4 162 31.8 15.30 18.32 M2.3+M4.3 NV R 153021.88+393522.0

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