00378+7254 HJ 1989AB

 
 
00h 37m 45.68s +72 53' 41.5" P.A. 51 sep 32.1 mag 6.97,11.52 Sp B2V dist. 473.93 pc (1545.96 l.y.)
 
 
Coord 2000
00378+7254
Discov num
HJ 1989
Comp
AB
Coord arcsec 2000
00 37 45.68 +72 53 41.5
Date first
1831
Date last
2003
Obs
7
Pa first
49
Pa last
51
P.A. Now (θ)
51°
Sep first
20.0
Sep last
32.1
Sep. Now (ρ)
32.1"
Mag pri
6.97
Mag sec
11.52
delta mag (ΔM)
4.55
Spectral class
B2V (blue-white)
Pri motion ra
+009
Sec motion ra
+003
Pri motion dec
-001
Sec motion dec
+003
Notes
rPM=0.796
Nature of this double is uncertain.
 
 
00378+7254 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 4165 00378+7254 HJ 1989 AB 1831 2003 7 51 32.1 6.97 11.52 4.55 <===
Show 00378+7254 HJ 1989 BC 1831 2015 6 342 11.5 11.52 12.40 0.88
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
51.1
Precise sep
32.123
Cdsa2 id
HJ 1989 AB
Constellation
Cassiopeia
SAO
4165
HIP
2968
Tycho2
4303-00957-1
HD
3366
BD
BD+72 35
Ra deg
0.6293555555555556
De deg
72.89486111111111
Distance
473.93
Distance ly
1545.96
last precise pa
51.1
last precise sep
32.123
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
00378+7254 HJ 1989 AB 1999 6 52 31.8 7.10 10.90 B2V D 003745.68+725341.5
00378+7254 HJ 1989 AB 2003 8 51 32.1 7.10 10.90 B2V D 003745.68+725341.5

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