18316-0353 A 87 CD

 
 
18h 31m 32.93s -03° 53' 21.5" sep 4.0 mag 10.10,14.50 Sp A0IV
 
 
Coord 2000 18316-0353 Discov num A    87 Comp CD Coord arcsec 2000 18 31 32.93 -03 53 21.5
Date first 1900 Date last 2015 Obs 9
Pa first 358 Pa last 359.5 P.A. Now (θ) 359.5°
Sep first 4.1 Sep last 3.99 Sep. Now (ρ) 3.99"
Mag pri 10.10 Mag sec 14.50 delta mag (ΔM) 4.4 Spectral class A0IV (white)
Pri motion ra -063 Sec motion ra
Pri motion dec +056 Sec motion dec
Notes
Nature of this double is uncertain.
 
 
18316-0353 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 18 31 33 -03 53 24 A 87 AB 2013 8 294 1.8 10.10 13.10 3.00
Show 18 31 33 -03 53 24 A 87 AC 2015 17 316 4.2 10.10 10.10 0.00
Show 18 31 33 -03 53 22 A 87 CD 2015 9 0 4.0 10.10 14.50 4.40 <===
Quadruple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Serpens Gaia DR2 4257885858334520448