18356+0456 BU 643 AB (FR Ser)

 
 
18h 35m 36.48s +04° 56' 09.8" P.A. 325.00 sep 13.7 mag 6.46,12.50 Sp A1V dist. 110.25 pc (359.64 l.y.)
 
 
Coord 2000 18356+0456 Discov num BU  643 Comp AB Coord arcsec 2000 18 35 36.48 +04 56 09.8
Date first 1878 Date last 2015 Obs 13
Pa first 338 Pa last 324.5 P.A. Now (θ) 324.5°
Sep first 8.8 Sep last 13.709 Sep. Now (ρ) 13.709"
Mag pri 6.46 Mag sec 12.50 delta mag (ΔM) 6.04 Spectral class A1V (white)
Pri motion ra +030 Sec motion ra -174
Pri motion dec -030 Sec motion dec +274
Notes N (See Notes)
rPM=1.128
This double is not physical.
 
 
18356+0456 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show FR Ser 123673 18 35 36 +04 56 10 BU 643 AB 2015 13 325 13.7 6.46 12.50 6.04 <===
Show 123673 18 35 36 +04 56 10 STF 2342 AC 2015 61 0 33.6 6.46 9.63 3.17
Show 123673 18 35 36 +04 56 10 FOX 9031 AD 2015 4 323 35.3 6.46 13.90 7.44
Quadruple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Var name FR Ser Constellation Serpens SAO 123673 HIP 91142
Tycho2 0454-01578-1 Gaia DR2 4283867558639522816 HD 171586 GC 25401
BD BD+04 3801 Distance 110.25 Distance ly 359.64