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=1.155
This double is not physical.
 
 
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 2016 489 153 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
 
 
Precise pa
100.4
Precise sep
493.16
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
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
13239+5456 SMR 4 AD 2008 6 102 492.3 2.23 7.60 D 132355.42+545531.5
13239+5456 SMR 4 AD 2010 7 102 490.7 2.23 7.60 N D 132355.42+545531.5
13239+5456 SMR 4 AD 2012 8 100 492.5 2.23 7.62 A1VpSrSi N 132355.42+545531.5
13239+5456 SMR 4 AD 2013 9 100 493.2 2.23 7.62 A1VpSrSi N 132355.42+545531.5

If you need more information about this double, apply for a data request form to the WDS.