21571+1619 UC 4609

 
 
21h 57m 07.69s +16 19' 05.6" P.A. 122.00 sep 24.5 mag 13.11,13.98
 
 
Coord 2000
21571+1619
Discov num
UC 4609
Comp
Coord arcsec 2000
21 57 07.69 +16 19 05.6
Date first
1998
Date last
2015
Obs
4
Pa first
122
Pa last
122
P.A. Now (θ)
122°
Sep first
24.7
Sep last
24.5
Sep. Now (ρ)
24.5"
Mag pri
13.11
Mag sec
13.98
delta mag (ΔM)
0.87
Spectral class
Pri motion ra
+143
Sec motion ra
+143
Pri motion dec
+008
Sec motion dec
+007
Notes
V (Proper motion indicates physical)
rPM=0.007 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
122.1
Precise sep
24.486
Constellation
Hydra
Gaia DR2
1769830098536527744
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21571+1619 UC 4609 2000 2 122 24.8 13.10 14.00 V 215707.69+161905.6
21571+1619 UC 4609 2001 2 122 24.7 13.10 14.00 V 215707.69+161905.6
21571+1619 UC 4609 2010 3 122 24.7 13.11 13.98 V 215707.69+161905.6
21571+1619 UC 4609 2015 4 122 24.5 13.11 13.98 V 215707.69+161905.6

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