18253+4653 BU  134

 
 
18h 25m 17.50s +46 53' 07.4" P.A. 126 sep 1 mag 7.99,9.70 Sp B9.5V dist. 227.27 pc (741.35 l.y.)
 
 
Coord 2000
18253+4653
Discov num
BU  134
Comp
Coord arcsec 2000
18 25 17.50 +46 53 07.4
Date first
1851
Date last
2015
Obs
42
Pa first
141
Pa last
126
P.A. Now (θ)
126°
Sep first
1.1
Sep last
1.0
Sep. Now (ρ)
1"
Mag pri
7.99
Mag sec
9.70
delta mag (ΔM)
1.71
Spectral class
B9.5V (blue-white)
Pri motion ra
-007
Sec motion ra
-007
Pri motion dec
+000
Sec motion dec
+000
Notes
N (See Notes)
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
126
Precise sep
1.03
Constellation
Lyra
SAO
47479
HIP
90283
Tycho2
3530-00086-1
HD
170074
BD
BD+46 2484
Distance
227.27
Distance ly
741.35
last precise pa
126
last precise sep
1.03
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18253+4653 BU 134 1991 37 125 1.1 7.99 9.70 B9.5V N D 182517.50+465307.4
18253+4653 BU 134 2010 39 126 1.1 7.99 9.70 B9.5V N D 182517.50+465307.4
18253+4653 BU 134 2011 41 126 1.1 7.99 9.70 B9.5V N 182517.50+465307.4
18253+4653 BU 134 2015 42 126 1.0 7.99 9.70 B9.5V N 182517.50+465307.4

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