19579-0904 BU 1475 AB (HD 188938)

 
 
19h 57m 53.70s -09 03' 30.3" P.A. 113.00 sep 10.4 mag 7.77,9.47 Sp K2 dist. 247.52 pc (807.41 l.y.)
 
 
Coord 2000 19579-0904 Discov num BU 1475 Comp AB Coord arcsec 2000 19 57 53.70 -09 03 30.3
Date first 1906 Date last 2015 Obs 19
Pa first 113 Pa last 112.8 P.A. Now (θ) 112.8°
Sep first 10.3 Sep last 10.421 Sep. Now (ρ) 10.421"
Mag pri 7.77 Mag sec 9.47 delta mag (ΔM) 1.7 Spectral class K2 (yellow-orange)
Pri motion ra -004 Sec motion ra -004
Pri motion dec -014 Sec motion dec -014
Notes
Nature of this double is uncertain.
 
 
19579-0904 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 188938 143951 19 57 54 -09 03 30 BU 1475 AB 2015 19 113 10.4 7.77 9.47 1.70 <===
Show 143951 19 57 54 -09 03 30 HDO 155 AC 2015 20 119 115.1 7.77 8.70 0.93
Show 143953 19 58 00 -09 04 27 BU 1475 CD 2015 9 163 4.9 8.70 11.10 2.40
Quadruple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 188938 Constellation Aquila SAO 143951 HIP 98246
Tycho2 5738-01042-1 Gaia DR2 4192181964040123264 HD 188938 BD BD-09 5303
Distance 247.52 Distance ly 807.41