20557+7648 UC 4331

 
 
20h 55m 43.64s +76 48' 25.6" P.A. 35 sep 15.6 mag 13.80,15.60
 
 
Coord 2000
20557+7648
Discov num
UC 4331
Comp
Coord arcsec 2000
20 55 43.64 +76 48 25.6
Date first
2000
Date last
2015
Obs
4
Pa first
35
Pa last
35
P.A. Now (θ)
35°
Sep first
16.0
Sep last
15.6
Sep. Now (ρ)
15.6"
Mag pri
13.80
Mag sec
15.60
delta mag (ΔM)
1.8
Spectral class
Pri motion ra
+036
Sec motion ra
+036
Pri motion dec
+046
Sec motion dec
+044
Notes
V R (Proper motion indicates physical, Red magnitudes)
rPM=0.034 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
34.7
Precise sep
15.588
Constellation
Cepheus
last precise pa
34.7
last precise sep
15.588
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20557+7648 UC 4331 2000 2 35 16.0 13.80 15.60 V 205543.64+764825.6
20557+7648 UC 4331 2003 2 35 15.6 13.80 15.60 V 205543.64+764825.6
20557+7648 UC 4331 2010 3 35 15.2 13.80 15.60 V R 205543.64+764825.6
20557+7648 UC 4331 2015 4 35 15.6 13.80 15.60 V R 205543.64+764825.6

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