21214-3140 UC 4455

 
 
21h 21m 25.44s -31 39' 48.8" P.A. 283.00 sep 11.4 mag 11.80,16.30
 
 
Coord 2000
21214-3140
Discov num
UC 4455
Comp
Coord arcsec 2000
21 21 25.44 -31 39 48.8
Date first
1999
Date last
2015
Obs
4
Pa first
284
Pa last
283
P.A. Now (θ)
283°
Sep first
11.2
Sep last
11.4
Sep. Now (ρ)
11.4"
Mag pri
11.80
Mag sec
16.30
delta mag (ΔM)
4.5
Spectral class
Pri motion ra
+072
Sec motion ra
+071
Pri motion dec
-052
Sec motion dec
-051
Notes
V (Proper motion indicates physical)
rPM=0.016 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
283.4
Precise sep
11.365
Constellation
Hydra
Gaia DR2
6784239600989148416
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21214-3140 UC 4455 1999 2 283 11.4 11.80 16.30 V 212125.44-313948.8
21214-3140 UC 4455 2000 2 284 11.2 11.80 16.30 V 212125.44-313948.8
21214-3140 UC 4455 2010 3 284 11.2 11.80 16.30 V 212125.44-313948.8
21214-3140 UC 4455 2015 4 283 11.4 11.80 16.30 V 212125.44-313948.8

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