15557-5439 HDS2241

 
 
15h 55m 39.58s -54 38' 36.6" P.A. 285 sep 1.1 mag 11.00,11.43 Sp OB+ dist. 1333.33 pc (4349.32 l.y.)
 
 
Coord 2000
15557-5439
Discov num
HDS2241
Comp
Coord arcsec 2000
15 55 39.58 -54 38 36.6
Date first
1991
Date last
2006
Obs
3
Pa first
286
Pa last
285
P.A. Now (θ)
285°
Sep first
1.2
Sep last
1.1
Sep. Now (ρ)
1.1"
Mag pri
11.00
Mag sec
11.43
delta mag (ΔM)
0.43
Spectral class
OB+ (blue)
Pri motion ra
-003
Sec motion ra
-003
Pri motion dec
-004
Sec motion dec
-004
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
284.9
Precise sep
1.132
Constellation
Norma
HIP
77994
Tycho2
8701-01116-1
CD
CD-54 6456
CP
CP-54 6791
Distance
1333.33
Distance ly
4349.32
last precise pa
284.9
last precise sep
1.132
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
15557-5439 HDS2241 2006 3 285 1.1 11.00 11.43 O9.5IV 155539.58-543836.6

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