57 Tauri

Altitude: -19.7° Azimuth: 30.4° Direction: North-North-East

57 Tauri is a variable and double hypergiant star in the constellation of Taurus.

57 Tauri visual magnitude is 5.59. Because of its reltive faintness, 57 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 57 Tauri:

Color of 57 Tauri ⬤

Magnitude of 57 Tauri 5.59

Class Hypergiant

VISIBILITY RIGHT NOW

57 Tauri is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -19.7°
Azimuth: 30.4°
Direction: North-North-East

Celestial coordinates and finder chart of 57 Tauri

57 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 57 Tauri are provided in the following table:

Right Ascension J2000 04h 19m 57s

Declination J2000 +14° 02’ 07”

Galactic Longitude 180.46°

Galactic Latitude -24.8°

Constellation Taurus

The simplified sky map below shows the position of 57 Tauri in the sky:

Simplified finder chart for 57 Tauri.

Visibility of 57 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 57 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: 76.0° RISE 15:55

Max altitude: 52.6° TRANSIT 23:06

Azimuth: 284.0° SET 6:21

Digitized Sky Survey image of 57 Tauri

The image below is a photograph of 57 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 57 Tauri is 0.116 arcsec per year in Right Ascension and -0.021 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

DSS2 image of 57 Tauri. The red arrow shows the motion of 57 Tauri during the next 1000 years (1.93 arcmin in Right Ascension and -0.35 arcmin in declination);

Distance of 57 Tauri from the Sun and relative movement

57 Tauri is distant 146.12 light years from the Sun and it is moving far from the Sun at the speed of 42 kilometers per second.

Distance (parsec) 44.82 pc

Distance (light year) 146.12 ly

Heliocentric radial velocity 42 km/s

Proper Motion RA 0.116 arcsec/year

Proper Motion Dec -0.021 arcsec/year

Spectral properties of 57 Tauri

57 Tauri belongs to spectral class F0 and has a luminosity class of IV corresponding to a hypergiant star.

Absolute magnitude 2.33

Spectral Type F0IV

Color Index (B-V) 0.28

Temperature of 57 Tauri 7591K

The red dot in the diagram below shows where 57 Tauri is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of 57 Tauri. Attribution: Richard Powell / CC BY-SA

57 Tauri star system properties

57 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 57 Tauri double sysyem:

Main star magnitude 5.59

Secondary star magnitude 13.49

Magnitude difference 7.9

Separation 34.9 arcsec

Alternative designations of 57 Tauri

Flamsteed designation 57 Tauri

Henry Draper Catalogue HD27397

SAO Catalogue SAO93872

Hipparcos Catalogue HIP20219

Durchmusterung Catalogue BD+13 663

General Catalogue of Variable Stars V483 Tau

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