18316-0353 A    87AB

 
 
18h 31m 33.12s -03 53' 24.4" P.A. 294 sep 1.5 mag 10.10,13.10
 
 
Coord 2000
18316-0353
Discov num
A    87
Comp
AB
Coord arcsec 2000
18 31 33.12 -03 53 24.4
Date first
1900
Date last
2012
Obs
7
Pa first
293
Pa last
294
P.A. Now (θ)
294°
Sep first
1.5
Sep last
1.5
Sep. Now (ρ)
1.5"
Mag pri
10.10
Mag sec
13.10
delta mag (ΔM)
3
Spectral class
Pri motion ra
+114
Sec motion ra
Pri motion dec
-113
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
18316-0353 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 18316-0353 A 87 AB 1900 2012 7 294 1.5 10.10 13.10 3.00 <===
Show 18316-0353 A 87 AC 1897 2015 15 316 4.2 10.10 10.10 0.00
Show 18316-0353 A 87 CD 1900 2015 7 0 4.0 10.10 14.50 4.40
Quadruple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
294.2
Precise sep
1.52
Constellation
Serpens
last precise pa
294.2
last precise sep
1.52
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18316-0353 A 87 AB 1937 6 300 1.4 10.10 13.10 183132.91-035321.3
18316-0353 A 87 AB 2012 7 294 1.5 10.10 13.10 183133.12-035324.4

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