Alkaid

η UMa

B3V Ursa Major Mag 1.85

Trenutna vidljivost

Višina

21.5°

Azimut

317.0°

naked_eye

Trenutni položaj

LastnostVrednost
Right Ascension (J2000)13h47m32s
Declination (J2000)+49°18'47"
Altitude21.46°
Azimuth317.03°
Hour Angle06h56m36s
ConstellationUrsa Major
Visibilitynaked_eye

Fizikalne lastnosti

LastnostVrednost
Visual Magnitude1.85
Spectral ClassB3V
Color Index (B-V)-0.19
Distance101.0 light-years
Parallax32.39 mas
Proper Motion (RA)-121.23 mas/yr
Proper Motion (Dec)-15.56 mas/yr
Radial Velocity-11.0 km/s

Kataloške oznake

KatalogOznaka
Hipparcos (HIP)67301
Bright Star Catalogue (HR)5191
Henry Draper (HD)120315
SAO44752
Bayer Designationη UMa
Flamsteed Designation85 UMa

Vzhod, zahod in kulminacija

DogodekČas / Vrednost
Rise Time13:13
Transit Time00:39 (altitude: 80.7°)
Set Time12:01