18476-3228 PRO 212AB

 
 
18h 47m 36.38s -32 27' 53.5" P.A. 334 sep 7.5 mag 10.20,12.30 Sp F8
 
 
Coord 2000
18476-3228
Discov num
PRO 212
Comp
AB
Coord arcsec 2000
18 47 36.38 -32 27 53.5
Date first
1913
Date last
2010
Obs
7
Pa first
340
Pa last
334
P.A. Now (θ)
334°
Sep first
7.5
Sep last
7.5
Sep. Now (ρ)
7.5"
Mag pri
10.20
Mag sec
12.30
delta mag (ΔM)
2.1
Spectral class
F8 (yellow-white)
Pri motion ra
+002
Sec motion ra
-005
Pri motion dec
-023
Sec motion dec
-017
Notes
rPM=0.399
Nature of this double is uncertain.
 
 
18476-3228 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 18476-3228 PRO 212 AB 1913 2010 7 334 7.5 10.20 12.30 2.10 <===
Show 18476-3228 SIN 111 AC 1987 1999 3 79 62.9 9.94 12.15 2.21
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
333.6
Precise sep
7.48
Constellation
Sagittarius
Tycho2
7412-01764-1
HD
173597
last precise pa
333.6
last precise sep
7.48
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18476-3228 PRO 212 AB 1998 4 334 7.6 10.17 12.30 F8 D 184736.38-322753.5
18476-3228 PRO 212 AB 1999 5 334 7.6 10.17 12.30 F8 D 184736.38-322753.5
18476-3228 PRO 212 AB 2010 6 334 7.5 10.20 12.30 F8 184736.38-322753.5

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