21172-0414 BU  161AE

 
 
21h 17m 10.66s -04 14' 22.3" P.A. 329 sep 39.6 mag 8.18,13.10 Sp K0
 
 
Coord 2000
21172-0414
Discov num
BU  161
Comp
AE
Coord arcsec 2000
21 17 10.66 -04 14 22.3
Date first
1899
Date last
2002
Obs
4
Pa first
332
Pa last
329
P.A. Now (θ)
329°
Sep first
40.6
Sep last
39.6
Sep. Now (ρ)
39.6"
Mag pri
8.18
Mag sec
13.10
delta mag (ΔM)
4.92
Spectral class
K0 (yellow-orange)
Pri motion ra
+010
Sec motion ra
-019
Pri motion dec
+002
Sec motion dec
+028
Notes
N (See Notes)
Nature of this double is uncertain.
 
 
21172-0414 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 21172-0414 BU 161 AB 1873 2003 14 351 100.7 8.18 10.29 2.11
Show 21172-0414 BU 161 AD 1891 2002 5 317 32.2 8.18 13.60 5.42
Show 21172-0414 BU 161 AE 1899 2002 4 329 39.6 8.18 13.10 4.92 <===
Show 21172-0414 BU 161 BC 1873 2015 10 315 8.2 10.29 11.60 1.31
Show 21172-0414 BU 161 DE 1891 2000 4 9 10.7 13.70 13.70 0.00
Quintuple system
5 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Aquarius
last precise pa
329.2
last precise sep
39.62
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21172-0414 BU 161 AE 2002 3 329 39.6 8.18 13.10 K0 N D 211710.66-041422.3

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