18591+1810 HU  331

 
 
18h 59m 05.92s +18 10' 05.3" P.A. 203 sep 0.6 mag 9.96,10.05 Sp F8
 
 
Coord 2000
18591+1810
Discov num
HU  331
Comp
Coord arcsec 2000
18 59 05.92 +18 10 05.3
Date first
1901
Date last
2008
Obs
14
Pa first
193
Pa last
203
P.A. Now (θ)
203°
Sep first
0.9
Sep last
0.6
Sep. Now (ρ)
0.6"
Mag pri
9.96
Mag sec
10.05
delta mag (ΔM)
0.09
Spectral class
F8 (yellow-white)
Pri motion ra
-020
Sec motion ra
-020
Pri motion dec
-030
Sec motion dec
-030
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
202.5
Precise sep
0.573
Constellation
Aquila
Tycho2
1589-00118-1
HD
230309
last precise pa
202.5
last precise sep
0.573
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18591+1810 HU 331 1991 13 193 0.4 9.96 10.05 F8 D 185905.92+181005.3
18591+1810 HU 331 2008 14 203 0.6 9.96 10.05 F8 D 185905.92+181005.3

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