21187+2240 UC 4439

 
 
21h 18m 44.66s +22 40' 29.0" P.A. 221 sep 9.6 mag 14.40,15.50
 
 
Coord 2000
21187+2240
Discov num
UC 4439
Comp
Coord arcsec 2000
21 18 44.66 +22 40 29.0
Date first
1999
Date last
2015
Obs
4
Pa first
223
Pa last
221
P.A. Now (θ)
221°
Sep first
9.8
Sep last
9.6
Sep. Now (ρ)
9.6"
Mag pri
14.40
Mag sec
15.50
delta mag (ΔM)
1.1
Spectral class
Pri motion ra
+036
Sec motion ra
+020
Pri motion dec
-049
Sec motion dec
-057
Notes
V (Proper motion indicates physical)
rPM=0.294 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
221.2
Precise sep
9.575
Cdsa2 id
UC 4439
Constellation
Vulpecula
Ra deg
21.312405555555557
De deg
22.674722222222222
last precise pa
221.2
last precise sep
9.575
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21187+2240 UC 4439 2000 2 222 9.6 14.40 15.50 V 211844.66+224029.0
21187+2240 UC 4439 2001 2 223 9.7 14.40 15.50 V 211844.66+224029.0
21187+2240 UC 4439 2010 3 222 9.1 14.40 15.50 V 211844.66+224029.0
21187+2240 UC 4439 2015 4 221 9.6 14.40 15.50 V 211844.66+224029.0

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