21178-3945 CRU9019AB

 
 
21h 17m 50.31s -39 44' 58.7" P.A. 230 sep 116.8 mag 9.80,10.00 Sp G2V
 
 
Coord 2000
21178-3945
Discov num
CRU9019
Comp
AB
Coord arcsec 2000
21 17 50.31 -39 44 58.7
Date first
1879
Date last
2000
Obs
6
Pa first
231
Pa last
230
P.A. Now (θ)
230°
Sep first
110.7
Sep last
116.8
Sep. Now (ρ)
116.8"
Mag pri
9.80
Mag sec
10.00
delta mag (ΔM)
0.2
Spectral class
G2V (yellow)
Pri motion ra
+007
Sec motion ra
-007
Pri motion dec
+034
Sec motion dec
+016
Notes
Nature of this double is uncertain.
 
 
21178-3945 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 21178-3945 CRU9019 AB 1879 2000 6 230 116.8 9.80 10.00 0.20 <===
Show 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
 
 
Constellation
Microscopium
last precise pa
229.8
last precise sep
116.78
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21178-3945 CRU9019 AB 2000 3 230 116.8 9.80 10.00 G2V 211750.31-394458.7

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