19450+4508 DAL  37AD

 
 
19h 44m 58.44s +45 07' 50.5" P.A. 246 sep 42 mag 2.89,14.80 Sp B9.5IV
 
 
Coord 2000
19450+4508
Discov num
DAL  37
Comp
AD
Coord arcsec 2000
19 44 58.44 +45 07 50.5
Date first
1998
Date last
2007
Obs
3
Pa first
247
Pa last
246
P.A. Now (θ)
246°
Sep first
40.8
Sep last
42.0
Sep. Now (ρ)
42"
Mag pri
2.89
Mag sec
14.80
delta mag (ΔM)
11.91
Spectral class
B9.5IV (blue-white)
Pri motion ra
+043
Sec motion ra
Pri motion dec
+048
Sec motion dec
Notes
N (See Notes)
Nature of this double is uncertain.
 
 
19450+4508 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show Del Cyg 48796 19450+4508 STF2579 AB 1826 2016 483 216 2.8 2.89 6.27 3.38 Y
Show 19450+4508 STF2579 AC 1913 2014 7 66 62.6 2.89 12.00 9.11
Show 19450+4508 DAL 37 AD 1998 2007 3 246 42.0 2.89 14.80 11.91 <===
Show 19450+4508 DAL 37 AF 1998 2007 3 66 147.5 2.89 12.80 9.91
Show 19450+4508 DAL 37 DE 1998 2007 3 250 3.3 14.80 15.20 0.40
Show 19450+4508 DAL 37 FG 2007 2007 1 311 3.2 13.00 13.80 0.80
Septuple system
7 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
246
Precise sep
41.97
Constellation
Cygnus
last precise pa
246
last precise sep
41.97
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
19450+4508 DAL 37 AD 2007 1 246 42.0 2.89 14.80 B9.5IV 194458.44+450750.5

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