18545+3719 HO   90

 
 
18h 54m 27.98s +37 18' 45.5" P.A. 223 sep 3.6 mag 8.72,12.70 Sp K5
 
 
Coord 2000
18545+3719
Discov num
HO   90
Comp
Coord arcsec 2000
18 54 27.98 +37 18 45.5
Date first
1885
Date last
2012
Obs
11
Pa first
225
Pa last
223
P.A. Now (θ)
223°
Sep first
3.8
Sep last
3.6
Sep. Now (ρ)
3.6"
Mag pri
8.72
Mag sec
12.70
delta mag (ΔM)
3.98
Spectral class
K5 (yellow-orange)
Pri motion ra
-008
Sec motion ra
Pri motion dec
-051
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
222.5
Precise sep
3.57
Constellation
Lyra
SAO
67558
Tycho2
2651-00404-1
last precise pa
222.5
last precise sep
3.57
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18545+3719 HO 90 1998 10 225 3.8 8.72 12.70 K5 185427.98+371845.5
18545+3719 HO 90 2012 11 223 3.6 8.72 12.70 K5 185427.98+371845.5

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