18187-1345 SNA 89 AC

 
 
18h 18m 40.09s -13° 45' 18.5" P.A. 249.00 sep 5.1 mag 6.71,14.14 Sp O7II
 
 
Coord 2000 18187-1345 Discov num SNA  89 Comp AC Coord arcsec 2000 18 18 40.09 -13 45 18.5
Date first 2012 Date last 2012 Obs 1
Pa first 249 Pa last 249.1 P.A. Now (θ) 249.1°
Sep first 5.1 Sep last 5.12 Sep. Now (ρ) 5.12"
Mag pri 6.71 Mag sec 14.14 delta mag (ΔM) 7.43 Spectral class O7II (blue)
Pri motion ra -000 Sec motion ra
Pri motion dec +001 Sec motion dec
Notes K (K-band or other infrared magnitudes)
Visually invisible, K-band or other infrared star : Summary line gives K-band or other infrared (>1 micron) magnitudes
Nature of this double is uncertain.
 
 
18187-1345 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 18 18 40 -13 45 18 SNA 89 AB 2012 1 344 5.1 6.71 14.57 7.86
Show 18 18 40 -13 45 18 SNA 89 AC 2012 1 249 5.1 6.71 14.14 7.43 <===
Show 18 18 40 -13 45 18 SNA 89 AD 2012 1 206 5.5 6.71 11.34 4.63
Show 18 18 40 -13 45 18 SNA 89 AE 2012 1 241 6.2 6.71 13.43 6.72
Quintuple system
5 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Serpens Gaia DR2 4146612494169472256