18309+3840 STF 2338 CD

 
 
18h 30m 51.83s +38° 38' 25.3" P.A. 243.00 sep 13.0 mag 9.62,14.80 Sp Ma
 
 
Coord 2000 18309+3840 Discov num STF2338 Comp CD Coord arcsec 2000 18 30 51.83 +38 38 25.3
Date first 1904 Date last 2017 Obs 6
Pa first 241 Pa last 243.1 P.A. Now (θ) 243.1°
Sep first 14.2 Sep last 13 Sep. Now (ρ) 13"
Mag pri 9.62 Mag sec 14.80 delta mag (ΔM) 5.18 Spectral class Ma (red)
Pri motion ra +002 Sec motion ra
Pri motion dec -007 Sec motion dec
Notes N (See Notes)
Nature of this double is uncertain.
 
 
18309+3840 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 18 30 55 +38 39 34 STF 2338 AB 2017 26 301 12.1 9.30 11.20 1.90
Show 18 30 55 +38 39 34 STF 2338 AC 2017 24 206 76.4 9.30 9.62 0.32
Show 18 30 55 +38 39 34 STF 2338 AE 2017 13 154 51.7 9.30 13.00 3.70
Show 18 30 52 +38 38 25 STF 2338 CD 2017 6 243 13.0 9.62 14.80 5.18 <===
Show 18 30 52 +38 38 25 STF 2338 CE 2017 11 69 60.7 9.62 13.00 3.38
Quintuple system
5 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Lyra Tycho2 3105-00726-1 Gaia DR2 2108423329924057472