18537+3658 H 6   3 (Del1 Lyr)

 
 
18H 53M 43.56S +36 58' 18.2" P.A. 20 SEP 175.3 MAG 5.55,9.93 SP B2.5V
 
 
Coord 2000
18537+3658
Discov num
H 6   3
Comp
Coord arcsec 2000
18 53 43.56 +36 58 18.2
Date first
1905
Date last
2012
Obs
16
Pa first
20
Pa last
20
P.A. Now (θ)
20°
Sep first
174.6
Sep last
175.3
Sep. Now (ρ)
175.3"
Mag pri
5.55
Mag sec
9.93
delta mag (ΔM)
4.38
Spectral class
B2.5V (blue-white)
Pri motion ra
+001
Sec motion ra
+005
Pri motion dec
-003
Sec motion dec
+012
Notes
N (See Notes)
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name
Del1 Lyr
Constellation
Lyra
SAO
67537
HD
175426
HR
7131
Bayer
Delta 1 Lyrae
Bayer name
Del1 Lyr
Flamsteed
11 Lyrae
Flamsteed name
11 Lyr
last precise pa
20
last precise sep
175.3