18553-2618 BED   1Aa,Ab

 
 
18h 55m 15.92s -26 17' 48.2" P.A. 202 mag 2.04, Sp B2.5V dist. 69.83 pc (227.79 l.y.)
 
 
Coord 2000
18553-2618
Discov num
BED   1
Comp
Aa,Ab
Coord arcsec 2000
18 55 15.92 -26 17 48.2
Date first
1991
Date last
1991
Obs
1
Pa first
202
Pa last
202
P.A. Now (θ)
202°
Sep first
0.0
Sep last
0.0
Sep. Now (ρ)
0"
Mag pri
2.04
Mag sec
delta mag (ΔM)
Spectral class
B2.5V (blue-white)
Pri motion ra
+014
Sec motion ra
Pri motion dec
-053
Sec motion dec
Notes
N (See Notes)
Nature of this double is uncertain.
 
 
18553-2618 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 187448 18553-2618 BED 1 Aa,Ab 1991 1991 1 202 0.0 2.04 <===
Show Nunki 187448 18553-2618 SMY 4 AB 1837 1999 4 239 349.0 2.04 9.95 7.91
Triple system
2 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
202
Precise sep
0.012
Constellation
Sagittarius
SAO
187448
HIP
92855
HD
175191
HR
7121
GC
25941
CD
CD-2613595
CP
CP-26 6590
Bayer
Sigma Sagittarii
Bayer name
Sig Sgr
Flamsteed
34 Sagittarii
Flamsteed name
34 Sgr
Distance
69.83
Distance ly
227.79
last precise pa
202
last precise sep
0.012
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18553-2618 BED 1 Aa,Ab 1991 1 202 0.0 2.02   B2.5V N 185515.92-261747.7

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