15423+2853 CRB   1

 
 
15h 42m 18.17s +28 52' 39.0" P.A. 222 sep 16.1 mag 12.60,12.70
 
 
Coord 2000
15423+2853
Discov num
CRB   1
Comp
Coord arcsec 2000
15 42 18.17 +28 52 39.0
Date first
1902
Date last
2010
Obs
11
Pa first
223
Pa last
222
P.A. Now (θ)
222°
Sep first
15.9
Sep last
16.1
Sep. Now (ρ)
16.1"
Mag pri
12.60
Mag sec
12.70
delta mag (ΔM)
0.1
Spectral class
Pri motion ra
+019
Sec motion ra
+011
Pri motion dec
+002
Sec motion dec
-002
Notes
rPM=0.468
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
221.8
Precise sep
16.08
Constellation
Corona Borealis
last precise pa
221.8
last precise sep
16.08
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
15423+2853 CRB 1 2009 7 222 16.2 12.60 12.70 154218.17+285239.0
15423+2853 CRB 1 2010 11 222 16.0 12.60 12.70 154218.17+285239.0

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