66 Tauri

Altitude: 10.1° Azimuth: 272.5° Direction: West

66 Tauri is a double main-sequence star in the constellation of Taurus.

66 Tauri visual magnitude is 5.12. Because of its reltive faintness, 66 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 66 Tauri:

Color of 66 Tauri ⬤

Magnitude of 66 Tauri 5.12

Class Main-sequence

VISIBILITY RIGHT NOW

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

Altitude: 10.1°
Azimuth: 272.5°
Direction: West

Celestial coordinates and finder chart of 66 Tauri

66 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 66 Tauri are provided in the following table:

Right Ascension J2000 04h 23m 51s

Declination J2000 +09° 27’ 38”

Galactic Longitude 185.11°

Galactic Latitude -26.88°

Constellation Taurus

The simplified sky map below shows the position of 66 Tauri in the sky:

Simplified finder chart for 66 Tauri.

Visibility of 66 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 66 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: 80.5° RISE 16:59

Max altitude: 48.0° TRANSIT 23:45

Azimuth: 279.5° SET 6:35

Digitized Sky Survey image of 66 Tauri

The image below is a photograph of 66 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 66 Tauri is -0.015 arcsec per year in Right Ascension and -0.008 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of 66 Tauri. The red arrow shows the motion of 66 Tauri during the next 10000 years (-2.50 arcmin in Right Ascension and -1.33 arcmin in declination);

Distance of 66 Tauri from the Sun and relative movement

66 Tauri is distant 396.11 light years from the Sun and it is moving towards the Sun at the speed of 4 kilometers per second.

Distance (parsec) 121.51 pc

Distance (light year) 396.11 ly

Heliocentric radial velocity -4 km/s

Proper Motion RA -0.015 arcsec/year

Proper Motion Dec -0.008 arcsec/year

Spectral properties of 66 Tauri

66 Tauri belongs to spectral class A3 and has a luminosity class of V corresponding to a main-sequence star.

Absolute magnitude -0.30

Spectral Type A3V

Color Index (B-V) 0.07

Temperature of 66 Tauri 9328K

The red dot in the diagram below shows where 66 Tauri is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of 66 Tauri. Attribution: Richard Powell / CC BY-SA

66 Tauri star system properties

66 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 66 Tauri double sysyem:

Main star magnitude 5.12

Secondary star magnitude 5.22

Magnitude difference 0.1

Separation 0.3 arcsec

Alternative designations of 66 Tauri

Flamsteed designation 66 Tauri

Henry Draper Catalogue HD27820

SAO Catalogue SAO111791

Hipparcos Catalogue HIP20522

Durchmusterung Catalogue BD+09 570

Aitken Double Star Catalogue ADS3182

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