21465+0635 UC 4556

 
 
21h 46m 31.41s +06 34' 49.0" P.A. 339.00 sep 4.7 mag 14.10,14.90 Sp M3V+M3V
 
 
Coord 2000
21465+0635
Discov num
UC 4556
Comp
Coord arcsec 2000
21 46 31.41 +06 34 49.0
Date first
1953
Date last
2016
Obs
8
Pa first
337
Pa last
339
P.A. Now (θ)
339°
Sep first
4.6
Sep last
4.7
Sep. Now (ρ)
4.7"
Mag pri
14.10
Mag sec
14.90
delta mag (ΔM)
0.8
Spectral class
M3V+M3V (red/red)
Pri motion ra
+159
Sec motion ra
+158
Pri motion dec
-043
Sec motion dec
-016
Notes
N V (See Notes, Proper motion indicates physical)
rPM=0.164 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
338.8
Precise sep
4.746
Constellation
Hydra
Gaia DR2
2700379980630316544
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21465+0635 UC 4556 2000 2 339 4.8 14.10 14.90 V 214631.41+063449.0
21465+0635 UC 4556 2005 4 337 4.6 14.10 14.90 M3V+M3V NV 214631.41+063449.0
21465+0635 UC 4556 2016 6 339 4.7 14.10 14.90 M3V+M3V NV 214631.41+063449.0

If you need more information about this double, apply for a data request form to the WDS.