18455+0530 STF2375AB

 
 
18h 45m 28.36s +05 30' 00.4" P.A. 121 sep 2.6 mag 6.34,6.73 Sp A1V dist. 188.68 pc (615.47 l.y.)
 
 
Coord 2000
18455+0530
Discov num
STF2375
Comp
AB
Coord arcsec 2000
18 45 28.36 +05 30 00.4
Date first
1825
Date last
2018
Obs
304
Pa first
108
Pa last
121
P.A. Now (θ)
121°
Sep first
2.2
Sep last
2.6
Sep. Now (ρ)
2.6"
Mag pri
6.34
Mag sec
6.73
delta mag (ΔM)
0.39
Spectral class
A1V (white)
Pri motion ra
+009
Sec motion ra
+009
Pri motion dec
-003
Sec motion dec
-003
Notes
N V (See Notes, Proper motion indicates physical)
This double is physical.
 
 
18455+0530 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 123886 18455+0530 FIN 332 Aa,Ab 1953 2018 78 299 0.0 6.50 6.60 0.10 Y
Show 18455+0530 STF2375 AB 1825 2018 304 121 2.6 6.34 6.73 0.39 <===
Show 18455+0530 FIN 332 Ba,Bb 1953 2018 56 330 0.1 7.19 7.95 0.76 Y
Quadruple system
2 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
121
Precise sep
2.605
Constellation
Serpens
SAO
123886
HIP
92027
Tycho2
0456-01022-1
Gaia DR2
42432285568
HD
173495
HR
7048
BD
BD+05 3941
Distance
188.68
Distance ly
615.47
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18455+0530 STF2375 AB 2007 291 120 2.5 6.34 6.73 N D 184528.36+053000.4
18455+0530 STF2375 AB 2009 295 119 2.5 6.34 6.73 N D 184528.36+053000.4
18455+0530 STF2375 AB 2010 312 121 2.6 6.34 6.73 N D 184528.36+053000.4
18455+0530 STF2375 AB 2012 319 120 2.4 6.34 6.73 N D 184528.36+053000.4
18455+0530 STF2375 AB 2013 322 120 2.6 6.34 6.73 A1V N D 184528.36+053000.4
18455+0530 STF2375 AB 2014 294 122 2.4 6.34 6.73 A1V N D 184528.36+053000.4
18455+0530 STF2375 AB 2015 296 120 2.5 6.34 6.73 A1V N 184528.36+053000.4
18455+0530 STF2375 AB 2016 300 121 2.4 6.34 6.73 A1V N 184528.36+053000.4
18455+0530 STF2375 AB 2017 302 121 2.5 6.34 6.73 A1V NV 184528.36+053000.4
18455+0530 STF2375 AB 2018 304 121 2.6 6.34 6.73 A1V NV 184528.36+053000.4

If you need more information about this double, apply for a data request form to the WDS.