18521+5120 STF2416AB

 
 
18h 52m 08.85s +51 19' 42.8" P.A. 159 sep 20.2 mag 8.67,11.17 Sp G0
 
 
Coord 2000
18521+5120
Discov num
STF2416
Comp
AB
Coord arcsec 2000
18 52 08.85 +51 19 42.8
Date first
1830
Date last
2017
Obs
22
Pa first
157
Pa last
159
P.A. Now (θ)
159°
Sep first
15.6
Sep last
20.2
Sep. Now (ρ)
20.2"
Mag pri
8.67
Mag sec
11.17
delta mag (ΔM)
2.5
Spectral class
G0 (yellow)
Pri motion ra
-001
Sec motion ra
+003
Pri motion dec
+010
Sec motion dec
-012
Notes
L (Linear solution)
rPM=1.808
This double is not physical.
 
 
18521+5120 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 31225 18521+5120 STF2416 AB 1830 2017 22 159 20.2 8.67 11.17 2.50 <===
Show 31225 18521+5120 STF2416 AC 1882 2017 18 41 122.7 8.67 9.41 0.74
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
158.5
Precise sep
20.18
Constellation
Draco
SAO
31225
Tycho2
3552-00143-1
HD
175308
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18521+5120 STF2416 AB 2006 15 157 20.0 8.67 11.17 G0 LD 185208.85+511942.8
18521+5120 STF2416 AB 2008 16 158 20.4 8.67 11.17 G0 LD 185208.85+511942.8
18521+5120 STF2416 AB 2010 18 158 19.9 8.67 11.17 G0 LD 185208.85+511942.8
18521+5120 STF2416 AB 2015 20 158 19.9 8.67 11.17 G0 L 185208.85+511942.8
18521+5120 STF2416 AB 2017 22 159 20.2 8.67 11.17 G0 L 185208.85+511942.8

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