13239+5456 SHY 248 CE (Alcor)

 
 
13h 25m 13.53s +54° 59' 16.6" P.A. 317.00 sep 999.9 mag 4.01,6.88 Sp A5V+G1Va dist. 25.06 pc (81.75 l.y.)
 
 
Coord 2000 13239+5456 Discov num SHY 248 Comp CE Coord arcsec 2000 13 25 13.53 +54 59 16.6
Date first 1991 Date last 1999 Obs 3
Pa first 317 Pa last 316.6 P.A. Now (θ) 316.6°
Sep first 999.9 Sep last 8537.22 Sep. Now (ρ) 8537.22"
Mag pri 4.01 Mag sec 6.88 delta mag (ΔM) 2.87 Spectral class A5V+G1Va (white/yellow)
Pri motion ra +119 Sec motion ra +113
Pri motion dec -018 Sec motion dec -020
Notes N V (See Notes, Proper motion indicates physical)
rPM=0.053 (< 0.3, Physical double)
This double is physical.
 
 
13239+5456 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 28737 13 23 55 +54 55 32 PEA 1 Aa,Ab 2004 63 34 0.0 3.00 3.00 0.00 Y
Show Mizar 28737 13 23 55 +54 55 32 STF 1744 AB 2020 500 154 14.7 2.23 3.88 1.65
Show 28737 13 23 55 +54 55 32 STF 1744 AC 2020 15 73 715.5 2.23 4.01 1.78
Show 28737 13 23 55 +54 55 32 SMR 4 AD 2020 11 103 498.1 2.23 7.62 5.39
Show 28737 13 23 55 +54 55 32 SHY 247 AE 1999 3 321 999.9 2.23 6.88 4.65
Show 28737 13 23 55 +54 55 32 SHY 247 AF 1999 3 359 999.9 2.23 9.86 7.63
Show Alcor 28751 13 25 14 +54 59 17 PSF 1 Ca,Cb 2009 5 207 1.0 4.01 8.00 3.99
Show Alcor 28751 13 25 14 +54 59 17 SHY 248 CE 1999 3 317 999.9 4.01 6.88 2.87 <===
Show Alcor 28751 13 25 14 +54 59 17 SHY 248 CF 1999 3 355 999.9 4.01 9.86 5.85
Show Alcor 28751 13 25 14 +54 59 17 SHY 248 CG 1999 3 271 999.9 4.01 8.21 4.20
Show Alcor 28751 13 25 14 +54 59 17 SHY 248 CH 1999 3 243 999.9 4.01 8.63 4.62
Decuple system
8 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Common name Alcor Other name g UMa Var name NSV6238 UMa Constellation Ursa Major
SAO 28751 HIP 65477 Tycho2 3850-01384-1 Gaia DR2 1565090003969283968
HD 116842 HR 5062 GC 18155 GL NN 3785
BD BD+55 1603 Flamsteed 80 Ursae Majoris Flamsteed name 80 UMa Distance 25.06
Distance ly 81.75
Meaning the faint one