18537+3658 H 6 3 (Del1 Lyr)

 
 
18h 53m 43.56s +36° 58' 18.2" P.A. 20.00 sep 175.3 mag 5.55,9.93 Sp B2.5V dist. 303.95 pc (991.48 l.y.)
 
 
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)
rPM=1.194
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name Del1 Lyr Var name NSV11504 Lyr Constellation Lyra SAO 67537
HIP 92728 Tycho2 2650-02146-1 Gaia DR2 2093922180304989568 HD 175426
HR 7131 GC 25934 BD BD+36 3307 Bayer Delta 1 Lyrae
Bayer name Del1 Lyr Flamsteed 11 Lyrae Flamsteed name 11 Lyr FK5 3506
Distance 303.95 Distance ly 991.48 Bayer greek δ1 Lyr