Alioth

ε UMa

A1III-IVp Ursa Major Mag 1.81

Nykyinen näkyvyys

Korkeus

15.1°

Atsimuutti

344.4°

naked_eye

Nykyinen sijainti

OminaisuusArvo
Right Ascension (J2000)11h03m43s
Declination (J2000)+61°45'03"
Altitude15.08°
Azimuth344.36°
Hour Angle09h48m48s
ConstellationUrsa Major
Visibilitynaked_eye

Fysikaaliset ominaisuudet

OminaisuusArvo
Visual Magnitude1.81
Spectral ClassA1III-IVp
Color Index (B-V)-0.02
Distance81.0 light-years
Parallax26.38 mas
Proper Motion (RA)-136.46 mas/yr
Proper Motion (Dec)-35.25 mas/yr
Radial Velocity-9.3 km/s

Luettelomerkinnät

LuetteloNimitys
Hipparcos (HIP)54061
Bright Star Catalogue (HR)4301
Henry Draper (HD)112185
SAO28553
Bayer Designationε UMa
Flamsteed Designation77 UMa

Nousu, lasku ja kulminaatio

TapahtumaAika / arvo
StatusCircumpolar (always above horizon)
Transit Time21:52 (altitude: 68.3°)