02542+6039 ES 1815AC

 
 
02H 54M 10.67S +60 39' 03.5" P.A. 53 SEP 16 MAG 8.52,13.20 SP B2
 
 
Coord 2000
02542+6039
Discov num
ES 1815
Comp
AC
Coord arcsec 2000
02 54 10.67 +60 39 03.5
Date first
1899
Date last
2016
Obs
9
Pa first
49
Pa last
53
P.A. Now (θ)
53°
Sep first
15.5
Sep last
16.0
Sep. Now (ρ)
16"
Mag pri
8.52
Mag sec
13.20
delta mag (ΔM)
4.68
Spectral class
B2 (blue-white)
Pri motion ra
+001
Sec motion ra
+001
Pri motion dec
+003
Sec motion dec
+002
Notes
rPM=0.316
Nature of this double is uncertain.
 
 
02542+6039 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 12499 02542+6039 ES 1815 AB 1908 2011 5 233 6.8 8.52 10.20 1.68
Show 12499 02542+6039 ES 1815 AC 1899 2016 9 53 16.0 8.52 13.20 4.68 <===
Show 12499 02542+6039 MZA 13 AD 1999 2008 2 105 7.0 8.52 15.60 7.08
Show 12499 02542+6039 MZA 13 AE 1999 2008 2 64 19.3 8.52 15.60 7.08
Show 12499 02542+6039 MZA 13 AG 1999 2008 2 20 9.3 8.52 17.10 8.58
Show 12499 02542+6039 MZA 13 AH 1999 2008 2 343 10.0 8.52 17.30 8.78
Show 12499 02542+6039 MZA 13 CF 2008 2008 1 172 1.8 13.20 18.00 4.80
Octuple system
8 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Cassiopeia
SAO
12499
Tycho2
4048-00991-1
last precise pa
53.2
last precise sep
16.029