Merak

β UMa

A1V Ursa Major Mag 2.41

Aktuell synlighet

Höjd

5.8°

Azimut

346.1°

naked_eye

Aktuell position

EgenskapVärde
Right Ascension (J2000)11h53m50s
Declination (J2000)+53°41'41"
Altitude5.82°
Azimuth346.06°
Hour Angle10h26m15s
ConstellationUrsa Major
Visibilitynaked_eye

Fysiska egenskaper

EgenskapVärde
Visual Magnitude2.41
Spectral ClassA1V
Color Index (B-V)-0.02
Distance79.7 light-years
Parallax38.99 mas
Proper Motion (RA)107.76 mas/yr
Proper Motion (Dec)11.16 mas/yr
Radial Velocity-12.0 km/s

Katalogbeteckningar

KatalogBeteckning
Hipparcos (HIP)58001
Bright Star Catalogue (HR)4295
Henry Draper (HD)95418
SAO43268
Bayer Designationβ UMa
Flamsteed Designation48 UMa

Uppgång, nedgång och kulmination

HändelseTid / Värde
StatusCircumpolar (always above horizon)
Transit Time22:42 (altitude: 76.4°)