71 Tauri

Altitude: 31.1° Azimuth: 104.6° Direction: East-South-East

71 Tauri is a variable and multiple hypergiant star in the constellation of Taurus.

71 Tauri visual magnitude is 4.49. Because of its moderate brightness, 71 Tauri should be easily visible from locations with dark skyes, while it can be barely visible, or not visible at all, from skyes affected by light pollution.

The table below summarizes the key facts about 71 Tauri:

Color of 71 Tauri ⬤

Magnitude of 71 Tauri 4.49

Class Hypergiant

VISIBILITY RIGHT NOW

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

Altitude: 31.1°
Azimuth: 104.6°
Direction: East-South-East

Celestial coordinates and finder chart of 71 Tauri

71 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 71 Tauri are provided in the following table:

Right Ascension J2000 04h 26m 20s

Declination J2000 +15° 37’ 05”

Galactic Longitude 180.18°

Galactic Latitude -22.6°

Constellation Taurus

The simplified sky map below shows the position of 71 Tauri in the sky:

Simplified finder chart for 71 Tauri.

Visibility of 71 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 71 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: 74.4° RISE 16:28

Max altitude: 54.1° TRANSIT 23:47

Azimuth: 285.6° SET 7:11

Digitized Sky Survey image of 71 Tauri

The image below is a photograph of 71 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 71 Tauri is 0.112 arcsec per year in Right Ascension and -0.023 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

DSS2 image of 71 Tauri. The red arrow shows the motion of 71 Tauri during the next 1000 years (1.87 arcmin in Right Ascension and -0.38 arcmin in declination);

Distance of 71 Tauri from the Sun and relative movement

71 Tauri is distant 156.28 light years from the Sun and it is moving far from the Sun at the speed of 38 kilometers per second.

Distance (parsec) 47.94 pc

Distance (light year) 156.28 ly

Heliocentric radial velocity 38 km/s

Proper Motion RA 0.112 arcsec/year

Proper Motion Dec -0.023 arcsec/year

Spectral properties of 71 Tauri

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

Absolute magnitude 1.09

Spectral Type F0V

Color Index (B-V) 0.25

Temperature of 71 Tauri 7795K

The red dot in the diagram below shows where 71 Tauri is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of 71 Tauri. Attribution: Richard Powell / CC BY-SA

71 Tauri star system properties

71 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 71 Tauri double sysyem:

Main star magnitude 4.49

Secondary star magnitude 6.49

Magnitude difference 2

Separation 0.1 arcsec

Alternative designations of 71 Tauri

Flamsteed designation 71 Tauri

Henry Draper Catalogue HD28052

SAO Catalogue SAO93932

Hipparcos Catalogue HIP20713

Durchmusterung Catalogue BD+15 625

General Catalogue of Variable Stars V777 Tau

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