02502+7255 HJ 2157AC

 
 
02H 50M 12.03S +72 54' 51.6" P.A. 24 SEP 25 MAG 8.00,10.58 SP B2.5V DIST. 549.45 PC (1792.31 L.Y.)
 
 
Coord 2000
02502+7255
Discov num
HJ 2157
Comp
AC
Coord arcsec 2000
02 50 12.03 +72 54 51.6
Date first
1831
Date last
2014
Obs
13
Pa first
20
Pa last
24
P.A. Now (θ)
24°
Sep first
22.5
Sep last
25.0
Sep. Now (ρ)
25"
Mag pri
8.00
Mag sec
10.58
delta mag (ΔM)
2.58
Spectral class
B2.5V (blue-white)
Pri motion ra
+000
Sec motion ra
-001
Pri motion dec
+001
Sec motion dec
+000
Notes
N U (See Notes, Proper motion indicates non-physical)
rPM=1.414
This double is not physical.
 
 
02502+7255 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show V793 Cas 4738 02502+7255 HJ 2157 AB 1893 2014 11 290 11.1 8.00 11.40 3.40
Show 4738 02502+7255 HJ 2157 AC 1831 2014 13 24 25.0 8.00 10.58 2.58 <===
Show 4738 02502+7255 HJ 2157 AD 1893 2014 10 70 34.5 8.00 12.79 4.79
Quadruple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Var name
V793 Cas
Constellation
Cassiopeia
SAO
4738
HIP
13221
Tycho2
4321-02203-1
HD
17179
BD
BD+72 145
Distance
549.45
Distance ly
1792.31
last precise pa
23.8
last precise sep
24.95