30 Tauri

Altitude: 16.9° Azimuth: 93.4° Direction: East

30 Tauri is a variable and double main-sequence star in the constellation of Taurus.

30 Tauri visual magnitude is 5.07. Because of its reltive faintness, 30 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 30 Tauri:

Color of 30 Tauri ⬤

Magnitude of 30 Tauri 5.07

Class Main-sequence

VISIBILITY RIGHT NOW

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

Altitude: 16.9°
Azimuth: 93.4°
Direction: East

Celestial coordinates and finder chart of 30 Tauri

30 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 30 Tauri are provided in the following table:

Right Ascension J2000 03h 48m 16s

Declination J2000 +11° 08’ 35”

Galactic Longitude 177.17°

Galactic Latitude -32.53°

Constellation Taurus

The simplified sky map below shows the position of 30 Tauri in the sky:

Simplified finder chart for 30 Tauri.

Visibility of 30 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 30 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: 78.9° RISE 21:06

Max altitude: 49.7° TRANSIT 4:05

Azimuth: 281.1° SET 11:00

Digitized Sky Survey image of 30 Tauri

The image below is a photograph of 30 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 30 Tauri is 0.028 arcsec per year in Right Ascension and -0.022 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of 30 Tauri. The red arrow shows the motion of 30 Tauri during the next 10000 years (4.67 arcmin in Right Ascension and -3.67 arcmin in declination);

Distance of 30 Tauri from the Sun and relative movement

30 Tauri is distant 564.99 light years from the Sun and it is moving far from the Sun at the speed of 16 kilometers per second.

Distance (parsec) 173.31 pc

Distance (light year) 564.99 ly

Heliocentric radial velocity 16 km/s

Proper Motion RA 0.028 arcsec/year

Proper Motion Dec -0.022 arcsec/year

Spectral properties of 30 Tauri

30 Tauri belongs to spectral class B3 and has a luminosity class of V corresponding to a main-sequence star.

Absolute magnitude -1.12

Spectral Type B3V

Color Index (B-V) -0.13

Temperature of 30 Tauri 12103K

The red dot in the diagram below shows where 30 Tauri is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of 30 Tauri. Attribution: Richard Powell / CC BY-SA

30 Tauri star system properties

30 Tauri is a visual double star which can be observed with the help of small or medium telescopes. The table below shows key information about the 30 Tauri double sysyem:

Main star magnitude 5.07

Secondary star magnitude 9.47

Magnitude difference 4.4

Separation 9.2 arcsec

Alternative designations of 30 Tauri

Flamsteed designation 30 Tauri

Henry Draper Catalogue HD23793

SAO Catalogue SAO93611

Hipparcos Catalogue HIP17771

Durchmusterung Catalogue BD+10 486

General Catalogue of Variable Stars 1327

Aitken Double Star Catalogue ADS2778

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