21172-0414 BU  161DE

 
 
21h 17m 09.13s -04 13' 59.1" P.A. 8 sep 10.8 mag 13.70,13.70 dist. 414.94 pc (1353.53 l.y.)
 
 
Coord 2000
21172-0414
Discov num
BU  161
Comp
DE
Coord arcsec 2000
21 17 09.13 -04 13 59.1
Date first
1891
Date last
2015
Obs
5
Pa first
16
Pa last
8
P.A. Now (θ)
Sep first
11.7
Sep last
10.8
Sep. Now (ρ)
10.8"
Mag pri
13.70
Mag sec
13.70
delta mag (ΔM)
0
Spectral class
Pri motion ra
-091
Sec motion ra
-019
Pri motion dec
-051
Sec motion dec
+028
Notes
N (See Notes)
rPM=1.025
This double is not physical.
 
 
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 2015 6 315 32.4 8.18 13.60 5.42
Show 21172-0414 BU 161 AE 1899 2015 5 327 39.9 8.18 13.10 4.92
Show 21172-0414 BU 161 BC 1873 2015 11 315 8.2 10.29 11.60 1.31
Show 21172-0414 BU 161 DE 1891 2015 5 8 10.8 13.70 13.70 0.00 <===
Quintuple system
5 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
7.6
Precise sep
10.835
Spectr
K0
Constellation
Aquarius
HIP
105075
Tycho2
5202-00262-1
Gaia DR2
44397081216
HD
202632
BD
BD-04 5404
Distance
414.94
Distance ly
1353.53
 
 
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 DE 2000 4 9 10.7 13.70 13.70 N 211709.13-041359.1
21172-0414 BU 161 DE 2010 5 8 10.6 13.70 13.70 N 211709.13-041359.1
21172-0414 BU 161 DE 2015 5 8 10.8 13.70 13.70 N 211709.13-041359.1

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