03556+5238 HDS 494

 
 
03h 55m 38.42s +52 38' 28.8" P.A. 176 sep 0.7 mag 6.91,9.82 Sp O9IV-V dist. 442.48 pc (1443.37 l.y.)
 
 
Coord 2000
03556+5238
Discov num
HDS 494
Comp
Coord arcsec 2000
03 55 38.42 +52 38 28.8
Date first
1991
Date last
2013
Obs
8
Pa first
178
Pa last
176
P.A. Now (θ)
176°
Sep first
0.7
Sep last
0.7
Sep. Now (ρ)
0.7"
Mag pri
6.91
Mag sec
9.82
delta mag (ΔM)
2.91
Spectral class
O9IV-V (blue)
Pri motion ra
+000
Sec motion ra
Pri motion dec
-002
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Perseus
SAO
24300
HIP
18370
Tycho2
3717-00049-1
HD
24431
BD
BD+52 726
Distance
442.48
Distance ly
1443.37
last precise pa
176.3
last precise sep
0.725
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
03556+5238 HDS 494 1999 2 178 0.7 6.91 9.82 O9IV-V D 035538.42+523828.8
03556+5238 HDS 494 2004 3 178 0.7 6.91 9.82 O9IV-V D 035538.42+523828.8
03556+5238 HDS 494 2008 5 177 0.7 6.91 9.82 O9IV-V D 035538.42+523828.8
03556+5238 HDS 494 2013 7 177 0.7 6.91 9.82 O9IV-V D 035538.42+523828.8

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