21568+0017 LAW  29AB

 
 
21h 56m 48.31s +00 17' 01.0" P.A. 249.00 sep 19.6 mag 16.61,18.84 Sp M3.0+M5.0
 
 
Coord 2000
21568+0017
Discov num
LAW  29
Comp
AB
Coord arcsec 2000
21 56 48.31 +00 17 01.0
Date first
1996
Date last
2016
Obs
9
Pa first
249
Pa last
249
P.A. Now (θ)
249°
Sep first
19.7
Sep last
19.6
Sep. Now (ρ)
19.6"
Mag pri
16.61
Mag sec
18.84
delta mag (ΔM)
2.23
Spectral class
M3.0+M5.0 (red/red)
Pri motion ra
-030
Sec motion ra
-038
Pri motion dec
-058
Sec motion dec
-058
Notes
V R (Proper motion indicates physical, Red magnitudes)
rPM=0.115 (< 0.3, Physical double)
This double is physical.
 
 
21568+0017 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 127183 21 56 48 +00 17 01 LAW 29 Aa,Ab 2008 2 126 0.1 16.61
Show 127183 21 56 48 +00 17 01 LAW 29 AB 2016 9 249 19.6 16.61 18.84 2.23 <===
Show 127183 21 56 47 +00 16 54 LAW 29 Ba,Bb 2008 2 149 0.1 18.84
Quadruple system
2 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
248.7
Precise sep
19.584
Constellation
Aquarius
SAO
127183
Gaia DR2
2681344406401415680
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21568+0017 LAW 29 AB 2008 1 248 19.8 16.50   M3.0+M5.0 215648.32+001701.2
21568+0017 LAW 29 AB 2015 5 249 19.6 16.61 18.84 M3.0+M5.0 V R 215648.31+001701.0

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