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
Cdsa2 id
LAW 23 AB
Constellation
Bootes
Ra deg
15.506077777777778
De deg
39.589444444444446
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

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