02318+8916 STF  93AC

 
 
02h 31m 49.09s +89 15' 50.7" P.A. 98 sep 38.7 mag 2.04,13.80 Sp F7:Ib-II
 
 
Coord 2000
02318+8916
Discov num
STF  93
Comp
AC
Coord arcsec 2000
02 31 49.09 +89 15 50.7
Date first
1884
Date last
2009
Obs
6
Pa first
88
Pa last
98
P.A. Now (θ)
98°
Sep first
43.3
Sep last
38.7
Sep. Now (ρ)
38.7"
Mag pri
2.04
Mag sec
13.80
delta mag (ΔM)
11.76
Spectral class
F7:Ib-II (yellow-white)
Pri motion ra
+038
Sec motion ra
Pri motion dec
-015
Sec motion dec
Notes
N U (See Notes, Proper motion indicates non-physical)
This double is not physical.
 
 
02318+8916 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 308 02318+8916 WRH 39 Aa,Ab 1937 2006 6 270 0.1 2.30 4.30 2.00 Y
Show Polaris 308 02318+8916 STF 93 AB 1779 2013 63 233 18.1 2.04 9.10 7.06
Show 308 02318+8916 STF 93 AC 1884 2009 6 98 38.7 2.04 13.80 11.76 <===
Show 308 02318+8916 STF 93 AD 1884 2009 7 189 82.1 2.04 14.30 12.26
Show 02318+8916 STF 93 BC 2005 2005 2 85 53.2 9.10 13.80 4.70
Show 02318+8916 STF 93 BD 2005 2005 2 182 70.3 9.10 14.30 5.20
Quintuple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Ursa Minor
SAO
308
HD
8890
HR
424
DM
BD+88 8
Flamsteed
1 Ursae Minoris
Flamsteed name
1 UMi
last precise pa
97.6
last precise sep
38.73
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
02318+8916 STF 93 AC 2007 5 96 39.2 2.10 13.80 N U 023147.08+891550.9
02318+8916 STF 93 AC 2009 6 98 38.7 2.10 13.80 N U 023147.08+891550.9

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