19447+4456 DA   13AB

 
 
19h 44m 44.02s +44 55' 44.0" P.A. 272 sep 1.8 mag 7.42,11.60 Sp K0
 
 
Coord 2000
19447+4456
Discov num
DA   13
Comp
AB
Coord arcsec 2000
19 44 44.02 +44 55 44.0
Date first
1859
Date last
1946
Obs
13
Pa first
266
Pa last
272
P.A. Now (θ)
272°
Sep first
2.3
Sep last
1.8
Sep. Now (ρ)
1.8"
Mag pri
7.42
Mag sec
11.60
delta mag (ΔM)
4.18
Spectral class
K0 (yellow-orange)
Pri motion ra
+033
Sec motion ra
Pri motion dec
+017
Sec motion dec
Notes
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 48791 19447+4456 DA 13 AB 1859 1946 13 272 1.8 7.42 11.60 4.18 <===
Show 48791 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
272.3
Precise sep
1.84
Constellation
Cygnus
SAO
48791
Tycho2
3148-00881-1
HD
186816
last precise pa
272.3
last precise sep
1.84
 
 
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 AB 1946 13 272 1.8 7.42 11.60 K0 194444.02+445544.0

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