19355+2049 COU 517

 
 
19h 35m 31.84s +20 49' 19.2" P.A. 50 sep 0.8 mag 8.31,11.17 Sp B8V dist. 420.17 pc (1370.59 l.y.)
 
 
Coord 2000
19355+2049
Discov num
COU 517
Comp
Coord arcsec 2000
19 35 31.84 +20 49 19.2
Date first
1970
Date last
2011
Obs
7
Pa first
46
Pa last
50
P.A. Now (θ)
50°
Sep first
0.7
Sep last
0.8
Sep. Now (ρ)
0.8"
Mag pri
8.31
Mag sec
11.17
delta mag (ΔM)
2.86
Spectral class
B8V (blue-white)
Pri motion ra
+001
Sec motion ra
+003
Pri motion dec
-008
Sec motion dec
-007
Notes
rPM=0.277 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
49.6
Precise sep
0.82
Constellation
Vulpecula
SAO
87402
HIP
96360
Tycho2
1613-00781-1
Gaia DR2
88685463808
HD
184829
BD
BD+20 4193
Distance
420.17
Distance ly
1370.59
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
19355+2049 COU 517 1999 5 48 1.0 8.31 11.17 B8V D 193531.84+204919.2
19355+2049 COU 517 2008 6 48 0.8 8.31 11.17 B8V D 193531.84+204919.2
19355+2049 COU 517 2011 7 50 0.8 8.31 11.17 B8V 193531.84+204919.2

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