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
Constellation
Vulpecula
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

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