18512+5923 STF2420AC

 
 
18h 51m 12.01s +59 23' 17.8" P.A. 325 sep 140.9 mag 4.77,12.67 Sp G7III-IV
 
 
Coord 2000
18512+5923
Discov num
STF2420
Comp
AC
Coord arcsec 2000
18 51 12.01 +59 23 17.8
Date first
1960
Date last
2003
Obs
3
Pa first
326
Pa last
325
P.A. Now (θ)
325°
Sep first
139.4
Sep last
140.9
Sep. Now (ρ)
140.9"
Mag pri
4.77
Mag sec
12.67
delta mag (ΔM)
7.9
Spectral class
G7III-IV (yellow)
Pri motion ra
+078
Sec motion ra
+000
Pri motion dec
+025
Sec motion dec
-003
Notes
N (See Notes)
rPM=1.012
This double is not physical.
 
 
18512+5923 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 31218 18512+5923 CIA 8 Aa,Ab 2012 2014 6 202 0.0 4.77 11.00 6.23 Y
Show Omi Dra 31218 18512+5923 STF2420 AB 1780 2012 91 319 37.3 4.77 8.26 3.49
Show 18512+5923 STF2420 AC 1960 2003 3 325 140.9 4.77 12.67 7.90 <===
Show 18512+5923 STF2420 BC 1880 2003 5 326 103.9 8.26 12.67 4.41
Quadruple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
324.5
Precise sep
140.91
Cdsa2 id
STF 2420 AC
Constellation
Draco
Ra deg
18.853336111111112
De deg
59.38827777777778
last precise pa
324.5
last precise sep
140.91
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18512+5923 STF2420 AC 1999 4 324 140.5 4.77 11.50 G7III-IV N D 185112.01+592317.8
18512+5923 STF2420 AC 2003 5 324 140.9 4.77 11.50 G7III-IV N D 185112.01+592317.8

If you need more information about this double, apply for a data request form to the WDS.