18396+4056 COU1607

 
 
18h 39m 33.03s +40 56' 06.2" P.A. 136 mag 6.47,7.99 Sp B9V dist. 271.74 pc (886.42 l.y.)
 
 
Coord 2000
18396+4056
Discov num
COU1607
Comp
Coord arcsec 2000
18 39 33.03 +40 56 06.2
Date first
1978
Date last
2014
Obs
38
Pa first
96
Pa last
136
P.A. Now (θ)
136°
Sep first
0.1
Sep last
0.0
Sep. Now (ρ)
0"
Mag pri
6.47
Mag sec
7.99
delta mag (ΔM)
1.52
Spectral class
B9V (blue-white)
Pri motion ra
+015
Sec motion ra
Pri motion dec
+003
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
136.2
Precise sep
0.014
Constellation
Lyra
SAO
47676
HIP
91491
Tycho2
3109-00722-1
HD
172671
HR
7017
BD
BD+40 3446
Distance
271.74
Distance ly
886.42
last precise pa
136.2
last precise sep
0.014
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18396+4056 COU1607 1995 36 116 0.2 6.47 7.99 B9V D 183933.03+405606.2
18396+4056 COU1607 2014 38 136 0.0 6.47 7.99 B9V 183933.03+405606.2

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