Alkaid

η UMa

B3V Ursa Major Mag 1.85

Aktuelle Sichtbarkeit

Höhe

44.1°

Azimut

304.3°

naked_eye

Aktuelle Position

EigenschaftWert
Right Ascension (J2000)13h47m32s
Declination (J2000)+49°18'47"
Altitude44.11°
Azimuth304.30°
Hour Angle04h21m54s
ConstellationUrsa Major
Visibilitynaked_eye

Physikalische Eigenschaften

EigenschaftWert
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

Katalogbezeichnungen

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

Auf-, Untergang & Kulmination

EreignisZeit / Wert
Rise Time10:12
Transit Time21:34 (altitude: 80.7°)
Set Time09:01