Prima Hyadum - γ Tauri (gamma Tauri)

Above the horizon. Rise: 5:47 | Tran: 13:07 | Set: 20:28

Alt: 1.08° Az: 65.76° Direction: East-North-East

Prima Hyadum, also designated as γ Tauri (gamma Tauri), is a variable hypergiant star of spectral class K0 in the constellation of Taurus.

Prima Hyadum visual magnitude is 3.65. Because of its moderate brightness, Prima Hyadum is easily visible to the naked eye from locations with dark skies, while it might be barely visible, or not visible at all, from light-polluted skies.

Image of Prima Hyadum - γ Tauri (gamma Tauri) star

DSS2 image of Prima Hyadum. The red arrow shows the motion of Prima Hyadum during the next 1000 years (1.92 arcmin in Right Ascension and -0.42 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 04h 21m 14s

Declination +15° 41’ 13”

Hour Angle 16h 45m 00s

Sidereal Time 21h 06m 15s

J2000

Right Ascension 04h 19m 47s

Declination +15° 37’ 38”

Galactic Coordinates

Galactic Longitude 179.08°

Galactic Latitude -23.82°

Finder Chart

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Finder chart for Prima Hyadum - γ Tauri (gamma Tauri).

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 3.65

Class Hypergiant

Absolute magnitude 0.28

Spectral Type K0III

Color Index (B-V) 0.99

Temperature 4767K

The red dot in the diagram below shows where Prima Hyadum is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of Prima Hyadum. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

Prima Hyadum is distant 153.99 light years from the Sun and it is moving far from the Sun at the speed of 39 kilometers per second.

Distance (parsec) 47.24

Distance (light year) 153.99

Radial Speed 39 km/s

Proper Motion RA 0.115 arcsec/y

Proper Motion Dec -0.025"/y

Alternative Designations

Proper Name Prima Hyadum

Bayer designation γ Tauri
(gamma Tauri)

Flamsteed designation 54 Tauri

Henry Draper Catalogue HD27371

SAO Catalogue SAO93868

Hipparcos Catalogue HIP20205

Durchmusterung Catalogue BD+15 612

FK5 Catalogue 159

General Catalogue of Variable Stars 1553

Visibility from Your Location

Today's Prima Hyadum - γ Tauri (gamma Tauri) rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 74.3° RISE 5:47

Max altitude: 54.2° TRANSIT 13:07

Azimuth: 285.7° SET 20:28

Set Location

Other stars in Taurus