16539-4153 SNA  49AB

 
 
16h 53m 55.60s -41 52' 51.4" P.A. 18 sep 2.2 mag 7.11,13.98 Sp O9.5III
 
 
Coord 2000
16539-4153
Discov num
SNA  49
Comp
AB
Coord arcsec 2000
16 53 55.60 -41 52 51.4
Date first
2012
Date last
2012
Obs
1
Pa first
18
Pa last
18
P.A. Now (θ)
18°
Sep first
2.2
Sep last
2.2
Sep. Now (ρ)
2.2"
Mag pri
7.11
Mag sec
13.98
delta mag (ΔM)
6.87
Spectral class
O9.5III (blue)
Pri motion ra
-002
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.
 
 
16539-4153 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 227370 16539-4153 SNA 49 Aa,Ab 2012 2012 1 345 0.1 7.20 10.00 2.80
Show 227370 16539-4153 SNA 49 AB 2012 2012 1 18 2.2 7.11 13.98 6.87 <===
Show 227370 16539-4153 SNA 49 AC 2012 2012 1 332 2.9 7.11 13.34 6.23
Show 227370 16539-4153 SNA 49 AD 2012 2012 1 145 5.1 7.11 11.26 4.15
Show 227370 16539-4153 SNA 49 AE 2012 2012 1 63 5.4 7.11 12.19 5.08
Show 227370 16539-4153 SNA 49 AF 1999 2012 2 175 7.2 7.11 13.15 6.04
Septuple system
6 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
18
Precise sep
2.23
Cdsa2 id
SNA 49 AB
Constellation
Scorpius
SAO
227370
Tycho2
7876-02282-1
HD
152219
Ra deg
16.898777777777777
De deg
-41.880944444444445
last precise pa
18
last precise sep
2.23
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
16539-4153 SNA 49 AB 2012 1 18 2.2 7.11 13.98 O9.5III V K 165355.60-415251.4

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