21370-0346 UC 4509

 
 
21h 37m 02.44s -03 46' 14.0" P.A. 141.00 sep 49.8 mag 16.00,16.30
 
 
Coord 2000
21370-0346
Discov num
UC 4509
Comp
Coord arcsec 2000
21 37 02.44 -03 46 14.0
Date first
1998
Date last
2015
Obs
4
Pa first
142
Pa last
141
P.A. Now (θ)
141°
Sep first
50.3
Sep last
49.8
Sep. Now (ρ)
49.8"
Mag pri
16.00
Mag sec
16.30
delta mag (ΔM)
0.3
Spectral class
Pri motion ra
-020
Sec motion ra
-020
Pri motion dec
-070
Sec motion dec
-048
Notes
V (Proper motion indicates physical)
rPM=0.302
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
141.4
Precise sep
49.832
Constellation
Hydra
Gaia DR2
2672492929776077184
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21370-0346 UC 4509 2000 2 142 50.9 16.00 16.30 V 213702.44-034614.0
21370-0346 UC 4509 2010 3 142 50.6 16.00 16.30 V 213702.44-034614.0
21370-0346 UC 4509 2015 4 141 49.8 16.00 16.30 V 213702.44-034614.0

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