18521-0716 STF2405AC

 
 
18h 52m 07.93s -07 15' 30.9" P.A. 303 sep 25.2 mag 8.01,10.79 Sp B9
 
 
Coord 2000
18521-0716
Discov num
STF2405
Comp
AC
Coord arcsec 2000
18 52 07.93 -07 15 30.9
Date first
1848
Date last
2007
Obs
13
Pa first
302
Pa last
303
P.A. Now (θ)
303°
Sep first
25.1
Sep last
25.2
Sep. Now (ρ)
25.2"
Mag pri
8.01
Mag sec
10.79
delta mag (ΔM)
2.78
Spectral class
B9 (blue-white)
Pri motion ra
+004
Sec motion ra
-001
Pri motion dec
-009
Sec motion dec
-005
Notes
rPM=0.65
Nature of this double is uncertain.
 
 
18521-0716 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 18521-0716 BU 1465 AB 1904 2000 3 112 13.7 8.01 11.40 3.39
Show 18521-0716 STF2405 AC 1848 2007 13 303 25.2 8.01 10.79 2.78 <===
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
302.5
Precise sep
25.18
Constellation
Scutum
Tycho2
5126-00384-1
HD
174701
last precise pa
302.5
last precise sep
25.18
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18521-0716 STF2405 AC 2007 12 303 25.2 8.01 10.79 B9 D 185207.93-071530.9

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