19413+3043 BU  145AC

 
 
19h 41m 15.48s +30 43' 16.8" P.A. 29 sep 7.3 mag 7.40,13.50 Sp A3V
 
 
Coord 2000
19413+3043
Discov num
BU  145
Comp
AC
Coord arcsec 2000
19 41 15.48 +30 43 16.8
Date first
1878
Date last
1998
Obs
12
Pa first
33
Pa last
29
P.A. Now (θ)
29°
Sep first
8.5
Sep last
7.3
Sep. Now (ρ)
7.3"
Mag pri
7.40
Mag sec
13.50
delta mag (ΔM)
6.1
Spectral class
A3V (white)
Pri motion ra
-001
Sec motion ra
Pri motion dec
-001
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
19413+3043 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 19413+3043 BU 145 AB 1873 2009 27 272 0.8 7.40 9.09 1.69
Show 19413+3043 BU 145 AC 1878 1998 12 29 7.3 7.40 13.50 6.10 <===
Show 19413+3043 BU 145 AD 1873 2002 13 156 26.3 7.40 11.87 4.47
Quadruple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
29.3
Precise sep
7.26
Constellation
Cygnus
last precise pa
29.3
last precise sep
7.26
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
19413+3043 BU 145 AC 1998 12 29 7.3 7.40 13.50 A3V D 194115.48+304316.8

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