21474-4924 UC 4564

 
 
21h 47m 23.60s -49 24' 07.0" P.A. 160.00 sep 7.9 mag 12.30,14.50
 
 
Coord 2000
21474-4924
Discov num
UC 4564
Comp
Coord arcsec 2000
21 47 23.60 -49 24 07.0
Date first
1998
Date last
2016
Obs
7
Pa first
161
Pa last
160
P.A. Now (θ)
160°
Sep first
7.9
Sep last
7.9
Sep. Now (ρ)
7.9"
Mag pri
12.30
Mag sec
14.50
delta mag (ΔM)
2.2
Spectral class
Pri motion ra
+038
Sec motion ra
+040
Pri motion dec
-034
Sec motion dec
-048
Notes
V (Proper motion indicates physical)
rPM=0.226 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
160.4
Precise sep
7.874
Constellation
Hydra
Gaia DR2
6562317365198938752
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21474-4924 UC 4564 1999 2 160 7.9 12.30 14.50 V 214723.60-492407.0
21474-4924 UC 4564 2000 2 161 7.9 12.30 14.50 V 214723.60-492407.0
21474-4924 UC 4564 2010 4 161 8.0 12.30 14.50 V 214723.60-492407.0
21474-4924 UC 4564 2015 5 161 7.9 12.30 14.50 V 214723.60-492407.0

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