Castor

α Gem

A1V Gemini Mag 1.58

Current Visibility

Yükseklik

2.7°

Azimut

49.2°

naked_eye

Current Position

PropertyValue
Right Ascension (J2000)07h34m35s
Declination (J2000)+31°53'15"
Altitude2.67°
Azimuth49.24°
Hour Angle-7h13m31s
ConstellationGemini
Visibilitynaked_eye

Fiziksel Özellikler

PropertyValue
Visual Magnitude1.58
Spectral ClassA1V
Color Index (B-V)0.03
Distance51.0 light-years
Parallax63.27 mas
Proper Motion (RA)-206.33 mas/yr
Proper Motion (Dec)-148.18 mas/yr
Radial Velocity5.4 km/s

Catalog Designations

KatalogDesignation
Hipparcos (HIP)36850
Bright Star Catalogue (HR)2891
Henry Draper (HD)60179
SAO60198
Bayer Designationα Gem
Flamsteed Designation66 Gem

Rise, Set & Transit

Gökyüzü OlaylarıTime / Value
Rise Time10:16
Transit Time18:24 (altitude: 81.9°)
Set Time02:35