02487+4225 ES  556

 
 
02h 48m 39.79s +42 24' 52.3" P.A. 356 sep 6.6 mag 9.12,11.40 Sp A0
 
 
Coord 2000
02487+4225
Discov num
ES  556
Comp
Coord arcsec 2000
02 48 39.79 +42 24 52.3
Date first
1893
Date last
2011
Obs
8
Pa first
356
Pa last
356
P.A. Now (θ)
356°
Sep first
5.8
Sep last
6.6
Sep. Now (ρ)
6.6"
Mag pri
9.12
Mag sec
11.40
delta mag (ΔM)
2.28
Spectral class
A0 (white)
Pri motion ra
-006
Sec motion ra
-002
Pri motion dec
-011
Sec motion dec
+007
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Perseus
SAO
38353
Tycho2
2853-00845-1
HD
17381
last precise pa
356.1
last precise sep
6.61
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
02487+4225 ES 556 1998 4 356 6.8 9.12 11.40 A0 D 024839.79+422452.3
02487+4225 ES 556 2010 5 357 6.6 9.12 11.40 A0 D 024839.79+422452.3
02487+4225 ES 556 2011 7 356 6.6 9.12 11.40 A0 D 024839.79+422452.3

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