13239+5456 STF1744AC

 
 
13h 23m 55.42s +54 55' 31.5" P.A. 70 sep 706.9 mag 2.23,4.01 Sp A1VpSrSi dist. 26.31 pc (85.82 l.y.)
 
 
Coord 2000
13239+5456
Discov num
STF1744
Comp
AC
Coord arcsec 2000
13 23 55.42 +54 55 31.5
Date first
1831
Date last
2013
Obs
12
Pa first
72
Pa last
70
P.A. Now (θ)
70°
Sep first
720.0
Sep last
706.9
Sep. Now (ρ)
706.9"
Mag pri
2.23
Mag sec
4.01
delta mag (ΔM)
1.78
Spectral class
A1VpSrSi (white)
Pri motion ra
+121
Sec motion ra
+119
Pri motion dec
-022
Sec motion dec
-018
Notes
N V (See Notes, Proper motion indicates physical)
rPM=0.036 (< 0.3, Physical double)
This double is 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
70.1
Precise sep
706.92
Constellation
Ursa Major
SAO
28737
HIP
65378
Tycho2
3850-01385-1
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
70.1
last precise sep
706.92
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
13239+5456 STF1744 AC 1991 9 71 708.5 2.23 4.01 N 132355.42+545531.5
13239+5456 STF1744 AC 2008 10 70 706.1 2.23 4.01 N 132355.42+545531.5
13239+5456 STF1744 AC 2013 12 70 706.9 2.23 4.01 A1VpSrSi NV 132355.42+545531.5

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