19447+4456 DA   13AC

 
 
19h 44m 44.02s +44 55' 44.0" P.A. 288 sep 155.2 mag 7.42,11.98 Sp K0
 
 
Coord 2000
19447+4456
Discov num
DA   13
Comp
AC
Coord arcsec 2000
19 44 44.02 +44 55 44.0
Date first
1878
Date last
2003
Obs
7
Pa first
290
Pa last
288
P.A. Now (θ)
288°
Sep first
153.1
Sep last
155.2
Sep. Now (ρ)
155.2"
Mag pri
7.42
Mag sec
11.98
delta mag (ΔM)
4.56
Spectral class
K0 (yellow-orange)
Pri motion ra
+033
Sec motion ra
+007
Pri motion dec
+017
Sec motion dec
+004
Notes
rPM=0.783
Nature of this double is uncertain.
 
 
19447+4456 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 19447+4456 DA 13 AB 1859 1946 13 272 1.8 7.42 11.60 4.18
Show 19447+4456 DA 13 AC 1878 2003 7 288 155.2 7.42 11.98 4.56 <===
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
288.2
Precise sep
155.181
Cdsa2 id
DA 13 AC
Constellation
Cygnus
Tycho2
3148-00881-1
HD
186816
Ra deg
19.745561111111112
De deg
44.928888888888885
last precise pa
288.2
last precise sep
155.181
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
19447+4456 DA 13 AC 1998 6 288 155.1 7.42 11.98 K0 D 194444.02+445544.0
19447+4456 DA 13 AC 2003 7 288 155.2 7.42 11.98 K0 D 194444.02+445544.0

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