18024-2302 SNA  77Aa,Ab

 
 
18h 02m 23.55s -23 01' 50.9" P.A. 248 mag 7.40,9.80 Sp O7.5V dist. 230.95 pc (753.36 l.y.)
 
 
Coord 2000
18024-2302
Discov num
SNA  77
Comp
Aa,Ab
Coord arcsec 2000
18 02 23.55 -23 01 50.9
Date first
2012
Date last
2013
Obs
2
Pa first
262
Pa last
248
P.A. Now (θ)
248°
Sep first
0.0
Sep last
0.0
Sep. Now (ρ)
0"
Mag pri
7.40
Mag sec
9.80
delta mag (ΔM)
2.4
Spectral class
O7.5V (blue)
Pri motion ra
-000
Sec motion ra
Pri motion dec
-009
Sec motion dec
Notes
N V K (See Notes, Proper motion indicates physical, K-band or other infrared magnitudes)
This double is physical.
 
 
18024-2302 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 186145 18024-2302 SNA 77 Aa,Ab 2012 2013 2 248 0.0 7.40 9.80 2.40 <===
Show V3791 Sgr 186145 18024-2302 H N 40 AB 1830 2012 21 19 6.3 7.59 10.40 2.81
Show 186145 18024-2302 H N 6 AC 1823 2010 31 217 11.3 7.59 8.66 1.07
Show 186145 18024-2302 H N 6 AE 1956 2010 4 204 16.7 7.59 12.60 5.01
Show 186145 18024-2302 HLD 175 AF 1875 2010 6 109 22.3 7.59 14.30 6.71
Show 186145 18024-2302 H N 6 AG 1890 1999 3 212 41.0 7.59 13.40 5.81
Show 186145 18024-2302 TRN 26 AH 2002 2013 2 344 1.5 7.59 13.00 5.41
Show 186145 18024-2302 SNA 77 AI 2013 2013 1 43 3.1 7.31 11.54 4.23
Show 186145 18024-2302 SNA 77 AJ 1998 2012 2 164 6.5 7.31 12.86 5.55
Show 186143 18024-2302 H N 6 CD 1866 1934 13 280 2.3 8.66 10.70 2.04
Show 186143 18024-2302 H N 6 CE 1875 1998 5 188 5.9 8.66 12.60 3.94
Show 186143 18024-2302 H N 6 CF 1875 1999 4 86 26.9 8.66 14.30 5.64
Show 186143 18024-2302 H N 6 CG 1878 1999 3 212 30.0 8.66 13.40 4.74
11-fold system
10 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
248.3
Precise sep
0.034
Var name
V3791 Sgr
Cdsa2 id
SNA 77 Aa,Ab
Constellation
Sagittarius
SAO
186145
HIP
88333
Tycho2
6842-00270-1
HD
164492
CD
CD-2313804
Ra deg
18.039875000000002
De deg
-23.030805555555556
Distance
230.95
Distance ly
753.36
last precise pa
248.3
last precise sep
0.034
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18024-2302 SNA 77 Aa,Ab 2013 2 248 0.0 7.40 9.80 O7.5V NV K 180223.55-230150.9

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