19050+2904 BKO  57AC

 
 
19h 05m 00.81s +29 04' 19.0" P.A. 164 sep 57.8 mag 9.30,11.40
 
 
Coord 2000
19050+2904
Discov num
BKO  57
Comp
AC
Coord arcsec 2000
19 05 00.81 +29 04 19.0
Date first
1999
Date last
2015
Obs
4
Pa first
164
Pa last
164
P.A. Now (θ)
164°
Sep first
57.8
Sep last
57.8
Sep. Now (ρ)
57.8"
Mag pri
9.30
Mag sec
11.40
delta mag (ΔM)
2.1
Spectral class
Pri motion ra
+001
Sec motion ra
-002
Pri motion dec
-010
Sec motion dec
-013
Notes
rPM=0.323
Nature of this double is uncertain.
 
 
19050+2904 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 19050+2904 AG 372 AB 1895 2015 10 182 5.9 9.30 10.60 1.30
Show 19050+2904 BKO 57 AC 1999 2015 4 164 57.8 9.30 11.40 2.10 <===
Show 19050+2904 BKO 57 CD 1999 2015 4 92 8.5 11.40 13.40 2.00
Quadruple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
163.5
Precise sep
57.771
Constellation
Lyra
Tycho2
2134-02070-1
Gaia DR2
2037731501134058112
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
19050+2904 BKO 57 AC 2002 2 164 58.0 9.27 11.30 D 190500.81+290419.0
19050+2904 BKO 57 AC 2015 4 164 57.8 9.30 11.40 190500.81+290419.0

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