16540-4143 SNA  50AB

 
 
16h 53m 59.99s -41 42' 52.8" P.A. 213 sep 4.3 mag 7.07,10.85 Sp O9IV
 
 
Coord 2000
16540-4143
Discov num
SNA  50
Comp
AB
Coord arcsec 2000
16 53 59.99 -41 42 52.8
Date first
2012
Date last
2012
Obs
1
Pa first
213
Pa last
213
P.A. Now (θ)
213°
Sep first
4.3
Sep last
4.3
Sep. Now (ρ)
4.3"
Mag pri
7.07
Mag sec
10.85
delta mag (ΔM)
3.78
Spectral class
O9IV (blue)
Pri motion ra
-004
Sec motion ra
Pri motion dec
-002
Sec motion dec
Notes
N V K (See Notes, Proper motion indicates physical, K-band or other infrared magnitudes)
This double is physical.
 
 
16540-4143 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 227376 16540-4143 SNA 50 AB 2012 2012 1 213 4.3 7.07 10.85 3.78 <===
Show 227376 16540-4143 SEE 296 AC 1897 1999 5 240 20.0 7.58 13.60 6.02
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
212.8
Precise sep
4.25
Constellation
Scorpius
SAO
227376
Tycho2
7876-02134-1
HD
152218
last precise pa
212.8
last precise sep
4.25
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
16540-4143 SNA 50 AB 2012 1 213 4.3 7.07 10.85 O9IV NV K 165359.99-414252.8

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