20543-3243 UC 4321AB

 
 
20h 54m 20.65s -32 42' 41.5" P.A. 38.00 sep 24.4 mag 9.72,11.44 Sp G6/K0III
 
 
Coord 2000
20543-3243
Discov num
UC 4321
Comp
AB
Coord arcsec 2000
20 54 20.65 -32 42 41.5
Date first
1911
Date last
2015
Obs
6
Pa first
38
Pa last
38
P.A. Now (θ)
38°
Sep first
23.9
Sep last
24.4
Sep. Now (ρ)
24.4"
Mag pri
9.72
Mag sec
11.44
delta mag (ΔM)
1.72
Spectral class
G6/K0III (yellow)
Pri motion ra
-004
Sec motion ra
-004
Pri motion dec
-079
Sec motion dec
-080
Notes
V (Proper motion indicates physical)
rPM=0.012 (< 0.3, Physical double)
This double is physical.
 
 
20543-3243 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 212534 20 54 21 -32 42 42 TDT 2622 Aa,Ab 1991 1 232 0.5 10.50 10.50 0.00
Show 212534 20 54 21 -32 42 42 UC 4321 AB 2015 6 38 24.4 9.72 11.44 1.72 <===
Triple system
2 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
37.5
Precise sep
24.373
Constellation
Microscopium
SAO
212534
Tycho2
7462-00436-1
Gaia DR2
6781718626985486464
HD
198869
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20543-3243 UC 4321 AB 1999 4 37 24.1 9.70 11.40 V 205420.65-324241.5
20543-3243 UC 4321 AB 2000 2 37 24.3 9.70 11.40 V 205420.65-324241.5
20543-3243 UC 4321 AB 2015 6 38 24.4 9.72 11.44 G6/K0III V 205420.65-324241.5

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