15544-5518 I   550

 
 
15h 54m 23.84s -55 18' 05.0" P.A. 42 sep 8.9 mag 11.10,12.80 Sp OBe
 
 
Coord 2000
15544-5518
Discov num
I   550
Comp
Coord arcsec 2000
15 54 23.84 -55 18 05.0
Date first
1909
Date last
1999
Obs
7
Pa first
30
Pa last
42
P.A. Now (θ)
42°
Sep first
2.0
Sep last
8.9
Sep. Now (ρ)
8.9"
Mag pri
11.10
Mag sec
12.80
delta mag (ΔM)
1.7
Spectral class
OBe (blue)
Pri motion ra
-009
Sec motion ra
-005
Pri motion dec
-002
Sec motion dec
-016
Notes
rPM=0.869
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
41.7
Precise sep
8.94
Constellation
Norma
last precise pa
41.7
last precise sep
8.94
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
15544-5518 I 550 1999 4 42 8.9 11.10 12.80 D 155423.84-551805.0

If you need more information about this double, apply for a data request form to the WDS.