18197+0207 AG  219AC

 
 
18h 19m 40.74s +02 07' 04.4" P.A. 246 sep 5.8 mag 10.08,12.50 Sp K0
 
 
Coord 2000
18197+0207
Discov num
AG  219
Comp
AC
Coord arcsec 2000
18 19 40.74 +02 07 04.4
Date first
1922
Date last
2011
Obs
3
Pa first
288
Pa last
246
P.A. Now (θ)
246°
Sep first
10.3
Sep last
5.8
Sep. Now (ρ)
5.8"
Mag pri
10.08
Mag sec
12.50
delta mag (ΔM)
2.42
Spectral class
K0 (yellow-orange)
Pri motion ra
-049
Sec motion ra
Pri motion dec
+058
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
18197+0207 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 18197+0207 AG 219 AB 1902 2011 18 34 8.7 10.08 10.80 0.72
Show 18197+0207 AG 219 AC 1922 2011 3 246 5.8 10.08 12.50 2.42 <===
Show 18197+0207 AG 219 AD 1922 2011 4 251 56.9 10.08 13.30 3.22
Quadruple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
245.9
Precise sep
5.82
Constellation
Ophiuchus
Tycho2
0436-03032-1
HD
168458
last precise pa
245.9
last precise sep
5.82
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18197+0207 AG 219 AC 1922 1 288 10.3 10.08   K0 181940.74+020704.4
18197+0207 AG 219 AC 1999 2 255 6.3 10.08   K0 181940.74+020704.4
18197+0207 AG 219 AC 2011 3 246 5.8 10.08   K0 181940.74+020704.4

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