19450+4508 DAL  37DE

 
 
19h 44m 54.90s +45 07' 34.6" P.A. 251 sep 3.5 mag 14.80,15.20 dist. 50.58 pc (164.99 l.y.)
 
 
Coord 2000
19450+4508
Discov num
DAL  37
Comp
DE
Coord arcsec 2000
19 44 54.90 +45 07 34.6
Date first
1998
Date last
2015
Obs
4
Pa first
250
Pa last
251
P.A. Now (θ)
251°
Sep first
3.7
Sep last
3.5
Sep. Now (ρ)
3.5"
Mag pri
14.80
Mag sec
15.20
delta mag (ΔM)
0.4
Spectral class
Pri motion ra
-007
Sec motion ra
Pri motion dec
-004
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 2017 8 67 62.5 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 2015 4 251 3.5 14.80 15.20 0.40 <===
Show 19450+4508 DAL 37 FG 2007 2015 2 312 3.1 13.00 13.80 0.80
Septuple system
7 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
250.5
Precise sep
3.52
Spectr
B9.5III
Constellation
Cygnus
SAO
48796
HIP
97165
Gaia DR2
09553909888
HD
186882
HR
7528
GC
27347
BD
BD+44 3234
Bayer
Delta Cygni
Bayer name
Del Cyg
Flamsteed
18 Cygni
Flamsteed name
18 Cyg
Distance
50.58
Distance ly
164.99
 
 
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 DE 2007 2 250 3.3 14.90 15.20 D 194454.90+450734.6
19450+4508 DAL 37 DE 2015 4 251 3.5 14.80 15.20 N 194454.90+450734.6

If you need more information about this double, apply for a data request form to the WDS.