00310-1005 HJ 1981A,BC

 
 
00h 30m 59.89s -10 05' 04.9" P.A. 89 sep 78.4 mag 6.91,8.43 Sp A5IV-V dist. 148.81 pc (485.42 l.y.)
 
 
Coord 2000
00310-1005
Discov num
HJ 1981
Comp
A,BC
Coord arcsec 2000
00 30 59.89 -10 05 04.9
Date first
1830
Date last
2015
Obs
27
Pa first
85
Pa last
89
P.A. Now (θ)
89°
Sep first
60.0
Sep last
78.4
Sep. Now (ρ)
78.4"
Mag pri
6.91
Mag sec
8.43
delta mag (ΔM)
1.52
Spectral class
A5IV-V (white)
Pri motion ra
-029
Sec motion ra
-034
Pri motion dec
-020
Sec motion dec
-035
Notes
Z W (Parallax indicates components are physical, )
rPM=0.324
This double is physical.
 
 
00310-1005 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 147317 00310-1005 HJ 1981 A,BC 1830 2015 27 89 78.4 6.91 8.43 1.52 <===
Show 147318 00310-1005 BU 1158 BC 1890 2017 35 115 0.2 9.69 9.09 0.60 Y
Triple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
88.7
Precise sep
78.37
Cdsa2 id
HJ 1981 A,BC
Constellation
Cetus
SAO
147317
HIP
2431
Tycho2
5269-02391-1
HD
2760
BD
BD-10 89
Ra deg
0.5166361111111111
De deg
-10.084694444444445
Distance
148.81
Distance ly
485.42
last precise pa
88.7
last precise sep
78.37
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
00310-1005 HJ 1981 A,BC 2001 22 88 78.0 6.91 8.43 A5IV-V NZD 003059.89-100504.9
00310-1005 HJ 1981 A,BC 2010 24 88 78.5 6.91 8.43 A5IV-V NZD 003059.89-100504.9
00310-1005 HJ 1981 A,BC 2012 26 90 78.7 6.91 8.43 A5IV-V Z 003059.89-100504.9
00310-1005 HJ 1981 A,BC 2015 27 89 78.4 6.91 8.43 A5IV-V ZW 003059.89-100504.9

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