21314+5754 ES 1800

 
 
21h 31m 25.94s +57 53' 56.6" P.A. 85 sep 3.5 mag 9.66,12.80 Sp B3
 
 
Coord 2000
21314+5754
Discov num
ES 1800
Comp
Coord arcsec 2000
21 31 25.94 +57 53 56.6
Date first
1919
Date last
2003
Obs
5
Pa first
89
Pa last
85
P.A. Now (θ)
85°
Sep first
3.1
Sep last
3.5
Sep. Now (ρ)
3.5"
Mag pri
9.66
Mag sec
12.80
delta mag (ΔM)
3.14
Spectral class
B3 (blue-white)
Pri motion ra
-005
Sec motion ra
-002
Pri motion dec
+003
Sec motion dec
-003
Notes
rPM=1.15
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
85
Precise sep
3.53
Cdsa2 id
ES 1800
Constellation
Cepheus
Tycho2
3974-00281-1
HD
239693
Ra deg
21.52387222222222
De deg
57.899055555555556
last precise pa
85
last precise sep
3.53
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21314+5754 ES 1800 1991 4 86 3.4 9.66 12.80 B3 213125.94+575356.6
21314+5754 ES 1800 2003 5 85 3.5 9.66 12.80 B3 213125.94+575356.6

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