18003+5251 STF2271AC

 
 
18h 00m 18.74s +52 51' 15.4" P.A. 18 sep 161 mag 8.17,12.98 Sp G0 dist. 60.42 pc (197.09 l.y.)
 
 
Coord 2000
18003+5251
Discov num
STF2271
Comp
AC
Coord arcsec 2000
18 00 18.74 +52 51 15.4
Date first
1913
Date last
2012
Obs
6
Pa first
18
Pa last
18
P.A. Now (θ)
18°
Sep first
167.3
Sep last
161.0
Sep. Now (ρ)
161"
Mag pri
8.17
Mag sec
12.98
delta mag (ΔM)
4.81
Spectral class
G0 (yellow)
Pri motion ra
+032
Sec motion ra
-002
Pri motion dec
+069
Sec motion dec
+009
Notes
N (See Notes)
rPM=0.907
This double is not physical.
 
 
18003+5251 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 30686 18003+5251 STF2271 AB 1828 2015 97 268 3.4 8.17 9.24 1.07
Show 30686 18003+5251 STF2271 AC 1913 2012 6 18 161.0 8.17 12.98 4.81 <===
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
18.2
Precise sep
160.97
Constellation
Draco
SAO
30686
HIP
88155
Tycho2
3903-01127-1
HD
164874
BD
BD+52 2125
Distance
60.42
Distance ly
197.09
last precise pa
18.2
last precise sep
160.97
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18003+5251 STF2271 AC 1922 2 18 167.0 8.17 12.90 G0 180018.74+525115.4
18003+5251 STF2271 AC 2008 3 18 161.8 8.17 12.90 G0 180018.74+525115.4
18003+5251 STF2271 AC 2012 6 18 161.0 8.17 12.90 G0 D 180018.74+525115.4

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