7 Tauri

7 Tauri is a variable and multiple main-sequence star in the constellation of Taurus.

7 Tauri visual magnitude is 5.92. Because of its reltive faintness, 7 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 7 Tauri:

Color of 7 Tauri ⬤

Magnitude of 7 Tauri 5.92

Class Main-sequence

VISIBILITY RIGHT NOW 7 Tauri is above the horizon from Greenwich, United Kingdom edit_location_alt. Altitude: 58°.

Celestial coordinates and finder chart of 7 Tauri

7 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 7 Tauri are provided in the following table:

Right Ascension J2000 03h 34m 26s

Declination J2000 +24° 27’ 51”

Galactic Longitude 163.95°

Galactic Latitude -25.14°

Constellation Taurus

The simplified sky map below shows the position of 7 Tauri in the sky:

Simplified finder chart for 7 Tauri.

Visibility of 7 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 7 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: 65.5° RISE 3:50

Max altitude: 63.0° TRANSIT 12:07

Azimuth: 294.5° SET 20:24

RIGHT NOW 7 Tauri is above the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of 7 Tauri

The image below is a photograph of 7 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 7 Tauri is 0.008 arcsec per year in Right Ascension and -0.024 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of 7 Tauri. The red arrow shows the motion of 7 Tauri during the next 10000 years (1.33 arcmin in Right Ascension and -4.00 arcmin in declination);

Distance of 7 Tauri from the Sun and relative movement

7 Tauri is distant 519.11 light years from the Sun and it is moving far from the Sun at the speed of 26 kilometers per second.

Distance (parsec) 159.24 pc

Distance (light year) 519.11 ly

Heliocentric radial velocity 26 km/s

Proper Motion RA 0.008 arcsec/year

Proper Motion Dec -0.024 arcsec/year

Spectral properties of 7 Tauri

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

Absolute magnitude -0.09

Spectral Type A3V

Color Index (B-V) 0.13

Temperature of 7 Tauri 8748K

The red dot in the diagram below shows where 7 Tauri is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of 7 Tauri. Attribution: Richard Powell / CC BY-SA

7 Tauri star system properties

7 Tauri is a visual double star which can be observed with the help of large telescopes. The table below shows key information about the 7 Tauri double sysyem:

Main star magnitude 5.92

Secondary star magnitude 6.12

Magnitude difference 0.2

Separation 0.7 arcsec

Alternative designations of 7 Tauri

Flamsteed designation 7 Tauri

Henry Draper Catalogue HD22091

SAO Catalogue SAO75999

Hipparcos Catalogue HIP16664

Durchmusterung Catalogue BD+23 473

General Catalogue of Variable Stars 1192

Aitken Double Star Catalogue ADS2616

In Evidence

Other stars in Taurus