21178-3945 CRU9019AC

 
 
21H 17M 50.31S -39 44' 58.7" P.A. 61 SEP 63.1 MAG 9.80,10.00 SP G2V
 
 
Coord 2000
21178-3945
Discov num
CRU9019
Comp
AC
Coord arcsec 2000
21 17 50.31 -39 44 58.7
Date first
1879
Date last
2000
Obs
6
Pa first
58
Pa last
61
P.A. Now (θ)
61°
Sep first
57.9
Sep last
63.1
Sep. Now (ρ)
63.1"
Mag pri
9.80
Mag sec
10.00
delta mag (ΔM)
0.2
Spectral class
G2V (yellow)
Pri motion ra
+007
Sec motion ra
+013
Pri motion dec
+034
Sec motion dec
-006
Notes
rPM=1.165
This double is not physical.
 
 
21178-3945 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 212872 21178-3945 CRU9019 AB 1879 2000 6 230 116.8 9.80 10.00 0.20
Show 212872 21178-3945 CRU9019 AC 1879 2000 6 61 63.1 9.80 10.00 0.20 <===
Show 21178-3945 TDT2890 Ba,Bb 1991 1991 1 252 0.5 10.77 10.78 0.01
Quadruple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
61.4
Precise sep
63.06
Constellation
Microscopium
SAO
212872
Tycho2
7970-00723-1
HD
202561
last precise pa
61.4
last precise sep
63.06