δ2 Tauri (delta2 Tauri)

Above the horizon. Rise: 5:49 | Tran: 13:20 | Set: 20:50

Alt: 25.04° Az: 93.09° Direction: East

δ2 Tauri is a double main-sequence star of spectral class A7 in the constellation of Taurus.

δ2 Tauri visual magnitude is 4.8. Because of its moderate brightness, δ2 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 δ2 Tauri. The red arrow shows the motion of δ2 Tauri during the next 1000 years (1.83 arcmin in Right Ascension and -0.63 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 04h 25m 33s

Declination +17° 30’ 03”

Hour Angle 19h 13m 47s

Sidereal Time 23h 39m 21s

J2000

Right Ascension 04h 24m 05s

Declination +17° 26’ 38”

Galactic Coordinates

Galactic Longitude 178.29°

Galactic Latitude -21.86°

Finder Chart

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Finder chart for δ2 Tauri (delta2 Tauri).

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 4.8

Class Main-sequence

Absolute magnitude 1.55

Spectral Type A7V

Color Index (B-V) 0.15

Temperature 8571K

The red dot in the diagram below shows where δ2 Tauri is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of δ2 Tauri. Attribution: Richard Powell / CC BY-SA

Star System Properties

δ2 Tauri is a visual double star which can be observed only with the help of very large telescopes. The table below shows key information about the δ2 Tauri double sysyem:

Main star magnitude 4.8

Secondary star magnitude 13.3

Magnitude difference 8.5

Separation 143 arcsec

Distance, Radial Speed, Proper Motion

δ2 Tauri is distant 145.80 light years from the Sun and it is moving far from the Sun at the speed of 39 kilometers per second.

Distance (parsec) 44.72

Distance (light year) 145.80

Radial Speed 39 km/s

Proper Motion RA 0.11 arcsec/y

Proper Motion Dec -0.038"/y

Alternative Designations

Bayer designation δ2 Tauri
(delta2 Tauri)

Flamsteed designation 64 Tauri

Henry Draper Catalogue HD27819

SAO Catalogue SAO93907

Hipparcos Catalogue HIP20542

Durchmusterung Catalogue BD+17 714

Visibility from Your Location

Today's δ2 Tauri (delta2 Tauri) rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 72.5° RISE 5:49

Max altitude: 56.0° TRANSIT 13:20

Azimuth: 287.5° SET 20:50

Set Location

Other stars in Taurus