13239+5456 SMR   4AD

 
 
13H 23M 55.42S +54 55' 31.5" P.A. 100 SEP 493.2 MAG 2.23,7.62 SP A1VPSRSI DIST. 26.31 PC (85.82 L.Y.)
 
 
Coord 2000
13239+5456
Discov num
SMR   4
Comp
AD
Coord arcsec 2000
13 23 55.42 +54 55 31.5
Date first
1913
Date last
2013
Obs
9
Pa first
101
Pa last
100
P.A. Now (θ)
100°
Sep first
498.7
Sep last
493.2
Sep. Now (ρ)
493.2"
Mag pri
2.23
Mag sec
7.62
delta mag (ΔM)
5.39
Spectral class
A1VpSrSi (white)
Pri motion ra
+121
Sec motion ra
-020
Pri motion dec
-022
Sec motion dec
-005
Notes
N (See Notes)
rPM=1.15 (> 0.8, Optical double)
 
 
13239+5456 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 28737 13239+5456 PEA 1 Aa,Ab 1925 2004 63 34 0.0 2.23 Y
Show Mizar, Alcor 28737 13239+5456 STF1744 AB 1755 2015 485 153 14.4 2.23 3.88 1.65
Show 28737 13239+5456 STF1744 AC 1831 2013 12 70 706.9 2.23 4.01 1.78
Show 28737 13239+5456 SMR 4 AD 1913 2013 9 100 493.2 2.23 7.62 5.39 <===
Show 28737 13239+5456 SHY 247 AE 1991 1999 3 321 999.9 2.23 6.88 4.65
Show 28737 13239+5456 SHY 247 AF 1991 1999 3 359 999.9 2.23 9.86 7.63
Show 28751 13239+5456 PSF 1 Ca,Cb 2007 2009 5 207 1.0 4.01 8.00 3.99
Show 28751 13239+5456 SHY 248 CE 1991 1999 3 317 999.9 4.01 6.88 2.87
Show 28751 13239+5456 SHY 248 CF 1991 1999 3 355 999.9 4.01 9.86 5.85
Show 28751 13239+5456 SHY 248 CG 1991 1999 3 271 999.9 4.01 8.21 4.20
Show 28751 13239+5456 SHY 248 CH 1991 1999 3 243 999.9 4.01 8.63 4.62
Decuple system
8 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Ursa Major
SAO
28737
HIP
65378
HD
116656
HR
5054
GC
18133
GL
NN 3783A
BD
BD+55 1598
Bayer
Zeta Ursae Majoris
Bayer name
Zet UMa
Flamsteed
79 Ursae Majoris
Flamsteed name
79 UMa
Distance
26.31
Distance ly
85.82
last precise pa
100.4
last precise sep
493.16