18589+3229 BU  649

 
 
18h 58m 53.75s +32 28' 32.8" P.A. 2 sep 0.9 mag 8.70,11.90 Sp F0
 
 
Coord 2000
18589+3229
Discov num
BU  649
Comp
Coord arcsec 2000
18 58 53.75 +32 28 32.8
Date first
1878
Date last
2007
Obs
20
Pa first
13
Pa last
2
P.A. Now (θ)
Sep first
1.6
Sep last
0.9
Sep. Now (ρ)
0.9"
Mag pri
8.70
Mag sec
11.90
delta mag (ΔM)
3.2
Spectral class
F0 (yellow-white)
Pri motion ra
+013
Sec motion ra
Pri motion dec
+005
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
2.1
Precise sep
0.919
Constellation
Lyra
last precise pa
2.1
last precise sep
0.919
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18589+3229 BU 649 1975 19 2 1.6 8.70 11.90 F0 185853.75+322832.8
18589+3229 BU 649 2007 20 2 0.9 8.70 11.90 F0 185853.75+322832.8

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