12154+5702 BUP 140 AC

12h 15m 25.45s +57° 01' 57.4" P.A. 130.00 sep 174.8 mag 3.30,11.62 Sp A3V dist. 24.69 pc (80.54 l.y.)

Coord 2000 12154+5702 Discov num BUP 140 Comp AC Coord arcsec 2000 12 15 25.45 +57 01 57.4
Date first 1879 Date last 2020 Obs 9
Pa first 124 Pa last 129.7 P.A. Now (θ) 129.7°
Sep first 188.6 Sep last 174.775 Sep. Now (ρ) 174.775"
Mag pri 3.30 Mag sec 11.62 delta mag (ΔM) 8.32 Spectral class A3V (white)
Pri motion ra +104 Sec motion ra -047
Pri motion dec +008 Sec motion dec +004
Notes N S (See Notes, Parallax indidates non-physical)




rPM=1.448

This double is not physical.



12154+5702 SYSTEM COMPONENTS

Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show Megrez 28315 12 15 25 +57 01 57 BLL 29 AB 2020 17 75 181.9 3.30 10.21 6.91
Show 28315 12 15 25 +57 01 57 BUP 140 AC 2020 9 130 174.8 3.30 11.62 8.32 <===
Show 28315 12 15 25 +57 01 57 JNN 240 AD 2011 2 113 3.3 3.31 18.40 15.09
Show 28315 12 15 25 +57 01 57 JNN 240 AE 2011 2 169 5.7 3.31 19.30 15.99


Quintuple system
5 estimated visually detectable stars in this system



OTHER CATALOGS AND DESIGNATIONS

Common name Megrez Var name NSV5513 UMa Constellation Ursa Major SAO 28315
HIP 59774 Tycho2 3837-01070-1 Gaia DR2 1575287046603149056 HD 106591
HR 4660 GC 16736 GL Gl 459 BD BD+57 1363
Bayer Delta Ursae Majoris Bayer name Del UMa Flamsteed 69 Ursae Majoris Flamsteed name 69 UMa
FK5 456 Distance 24.69 Distance ly 80.54 Bayer greek δ UMa
Other names KAFFA
Meaning insertion point