19413+3043 BU  145AB

 
 
19h 41m 15.48s +30 43' 16.8" P.A. 272 sep 0.8 mag 7.40,9.09 Sp A3V+F6III
 
 
Coord 2000
19413+3043
Discov num
BU  145
Comp
AB
Coord arcsec 2000
19 41 15.48 +30 43 16.8
Date first
1873
Date last
2009
Obs
27
Pa first
280
Pa last
272
P.A. Now (θ)
272°
Sep first
0.9
Sep last
0.8
Sep. Now (ρ)
0.8"
Mag pri
7.40
Mag sec
9.09
delta mag (ΔM)
1.69
Spectral class
A3V+F6III (white/yellow-white)
Pri motion ra
-001
Sec motion ra
-001
Pri motion dec
-001
Sec motion dec
-001
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
271.7
Precise sep
0.809
Cdsa2 id
BU 145 AB
Constellation
Cygnus
Tycho2
2656-05255-1
HD
186097
Ra deg
19.687633333333334
De deg
30.72133333333333
last precise pa
271.7
last precise sep
0.809
 
 
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 AB 1995 24 275 0.8 7.40 9.09 A3V+F6III D 194115.48+304316.8
19413+3043 BU 145 AB 2006 25 270 0.8 7.40 9.09 A3V+F6III D 194115.48+304316.8
19413+3043 BU 145 AB 2007 26 269 0.8 7.40 9.09 A3V+F6III D 194115.48+304316.8
19413+3043 BU 145 AB 2009 27 272 0.8 7.40 9.09 A3V+F6III D 194115.48+304316.8

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