φ Tauri (phi Tauri)

Below the horizon. Rise: 4:32 | Tran: 13:12 | Set: 21:52

Alt: -8.90° Az: 340.90° Direction: North-North-West

φ Tauri is a double giant star of spectral class K1 in the constellation of Taurus.

φ Tauri visual magnitude is 4.95. Because of its moderate brightness, φ Tauri 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.

DSS2 image of φ Tauri. The red arrow shows the motion of φ Tauri during the next 10000 years (-4.17 arcmin in Right Ascension and -13.33 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 04h 21m 55s

Declination +27° 24’ 35”

Hour Angle 10h 34m 33s

Sidereal Time 14h 56m 28s

J2000

Right Ascension 04h 20m 21s

Declination +27° 21’ 02”

Galactic Coordinates

Galactic Longitude 169.83°

Galactic Latitude -15.94°

Finder Chart

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Finder chart for φ Tauri (phi Tauri).

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 4.95

Class Giant

Absolute magnitude -0.15

Spectral Type K1III

Color Index (B-V) 1.15

Temperature 4409K

The red dot in the diagram below shows where φ Tauri is situated in the Hertzsprung–Russell diagram.

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

Star System Properties

φ Tauri is a visual double star which can be observed with binoculars or small telescopes. The table below shows key information about the φ Tauri double sysyem:

Main star magnitude 4.95

Secondary star magnitude 8.65

Magnitude difference 3.7

Separation 50 arcsec

Distance, Radial Speed, Proper Motion

φ Tauri is distant 342.08 light years from the Sun and it is moving far from the Sun at the speed of 3 kilometers per second.

Distance (parsec) 104.93

Distance (light year) 342.08

Radial Speed 3 km/s

Proper Motion RA -0.025 arcsec/y

Proper Motion Dec -0.08"/y

Alternative Designations

Bayer designation φ Tauri
(phi Tauri)

Flamsteed designation 52 Tauri

Henry Draper Catalogue HD27382

SAO Catalogue SAO76558

Hipparcos Catalogue HIP20250

Durchmusterung Catalogue BD+27 655

Aitken Double Star Catalogue ADS3137

Visibility from Your Location

Today's φ Tauri (phi Tauri) rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 62.6° RISE 4:32

Max altitude: 65.9° TRANSIT 13:12

Azimuth: 297.4° SET 21:52

Set Location

Other stars in Taurus