51 Tauri

Altitude: 58.7° Azimuth: 201.8° Direction: South-South-West

51 Tauri is a multiple hypergiant star in the constellation of Taurus.

51 Tauri visual magnitude is 5.65. Because of its reltive faintness, 51 Tauri should be visible only from locations with dark skyes, while it is not visible at all from skyes affected by light pollution.

The table below summarizes the key facts about 51 Tauri:

Color of 51 Tauri ⬤

Magnitude of 51 Tauri 5.65

Class Hypergiant

VISIBILITY RIGHT NOW

51 Tauri is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 58.7°
Azimuth: 201.8°
Direction: South-South-West

Celestial coordinates and finder chart of 51 Tauri

51 Tauri is situated close to the celestial equator, as such, it is at least partly visible from both hemispheres in certain times of the year. Celestial coordinates for the J2000 equinox as well as galactic coordinates of 51 Tauri are provided in the following table:

Right Ascension J2000 04h 18m 23s

Declination J2000 +21° 34’ 45”

Galactic Longitude 173.99°

Galactic Latitude -20.17°

Constellation Taurus

The simplified sky map below shows the position of 51 Tauri in the sky:

Simplified finder chart for 51 Tauri.

Visibility of 51 Tauri from your location

Location: Greenwich, United Kingdom edit_location_alt
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London

Today's 51 Tauri rise, transit and set times from Greenwich, United Kingdom edit_location_alt are the following (all times relative to the local timezone Europe/London):

Azimuth: 68.4° RISE 15:27

Max altitude: 60.1° TRANSIT 23:24

Azimuth: 291.6° SET 7:24

Digitized Sky Survey image of 51 Tauri

The image below is a photograph of 51 Tauri from the Digitized Sky Survey 2 (DSS2 - see the credits section) taken in the red channel. The area of sky represented in the image is 0.5x0.5 degrees (30x30 arcmins). The proper motion of 51 Tauri is 0.094 arcsec per year in Right Ascension and -0.037 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

DSS2 image of 51 Tauri. The red arrow shows the motion of 51 Tauri during the next 1000 years (1.57 arcmin in Right Ascension and -0.62 arcmin in declination);

Distance of 51 Tauri from the Sun and relative movement

51 Tauri is distant 178.63 light years from the Sun and it is moving far from the Sun at the speed of 35 kilometers per second.

Distance (parsec) 54.79 pc

Distance (light year) 178.63 ly

Heliocentric radial velocity 35 km/s

Proper Motion RA 0.094 arcsec/year

Proper Motion Dec -0.037 arcsec/year

Spectral properties of 51 Tauri

51 Tauri belongs to spectral class F0 and has a luminosity class of V corresponding to a hypergiant star.

Absolute magnitude 1.96

Spectral Type F0V

Color Index (B-V) 0.28

Temperature of 51 Tauri 7591K

The red dot in the diagram below shows where 51 Tauri is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of 51 Tauri. Attribution: Richard Powell / CC BY-SA

51 Tauri star system properties

51 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 51 Tauri double sysyem:

Main star magnitude 5.65

Secondary star magnitude 7.65

Magnitude difference 2

Separation 0.1 arcsec

Alternative designations of 51 Tauri

Flamsteed designation 51 Tauri

Henry Draper Catalogue HD27176

SAO Catalogue SAO76541

Hipparcos Catalogue HIP20087

Durchmusterung Catalogue BD+21 618

FK5 Catalogue 2313

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