18054-2300 SNA  80AC

 
 
18h 05m 25.74s -23 00' 20.3" P.A. 21 sep 5.6 mag 7.10,11.64 Sp O7:Ia dist. 2173.91 pc (7091.29 l.y.)
 
 
Coord 2000
18054-2300
Discov num
SNA  80
Comp
AC
Coord arcsec 2000
18 05 25.74 -23 00 20.3
Date first
1999
Date last
2012
Obs
2
Pa first
22
Pa last
21
P.A. Now (θ)
21°
Sep first
5.4
Sep last
5.6
Sep. Now (ρ)
5.6"
Mag pri
7.10
Mag sec
11.64
delta mag (ΔM)
4.54
Spectral class
O7:Ia (blue)
Pri motion ra
-001
Sec motion ra
Pri motion dec
-003
Sec motion dec
Notes
K (K-band or other infrared magnitudes)
Nature of this double is uncertain.
 
 
18054-2300 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 18054-2300 LYS 33 AB 1910 1999 8 289 35.2 9.98 10.51 0.53
Show 18054-2300 SNA 80 AC 1999 2012 2 21 5.6 7.10 11.64 4.54 <===
Show 18054-2300 SNA 80 AD 1999 2012 2 186 5.6 7.10 11.12 4.02
Show 18054-2300 SNA 80 AE 2012 2012 1 183 7.9 7.10 12.11 5.01
Quintuple system
5 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
21.2
Precise sep
5.57
Cdsa2 id
SNA 80 AC
Constellation
Sagittarius
HIP
88597
Tycho2
6842-01045-1
HD
313846
CD
CD-2313879
CP
CP-23 6812
Ra deg
18.09048333333333
De deg
-23.00563888888889
Distance
2173.91
Distance ly
7091.29
last precise pa
21.2
last precise sep
5.57
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18054-2300 SNA 80 AC 2012 1 21 5.6 7.10 11.64 O7:Ia K 180525.74-230020.3

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