103 Tauri

103 Tauri is a multiple main-sequence star in the constellation of Taurus.

103 Tauri visual magnitude is 5.5. Because of its reltive faintness, 103 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 103 Tauri:

Color of 103 Tauri ⬤

Magnitude of 103 Tauri 5.5

Class Main-sequence

VISIBILITY RIGHT NOW 103 Tauri is below the horizon from Greenwich, United Kingdom edit_location_alt.

Celestial coordinates and finder chart of 103 Tauri

103 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 103 Tauri are provided in the following table:

Right Ascension J2000 05h 08m 06s

Declination J2000 +24° 15’ 55”

Galactic Longitude 179.25°

Galactic Latitude -9.56°

Constellation Taurus

The simplified sky map below shows the position of 103 Tauri in the sky:

Simplified finder chart for 103 Tauri.

Visibility of 103 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 103 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: 65.7° RISE 5:13

Max altitude: 62.8° TRANSIT 13:29

Azimuth: 294.3° SET 21:44

RIGHT NOW 103 Tauri is below the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of 103 Tauri

The image below is a photograph of 103 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 103 Tauri is 0 arcsec per year in Right Ascension and -0.004 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.

DSS2 image of 103 Tauri. The red arrow shows the motion of 103 Tauri during the next 100000 years (0.00 arcmin in Right Ascension and -6.67 arcmin in declination);

Distance of 103 Tauri from the Sun and relative movement

103 Tauri is distant 3,227.72 light years from the Sun and it is moving far from the Sun at the speed of 16 kilometers per second.

Distance (parsec) 990.10 pc

Distance (light year) 3,227.72 ly

Heliocentric radial velocity 16 km/s

Proper Motion Dec -0.004 arcsec/year

Spectral properties of 103 Tauri

103 Tauri belongs to spectral class B2 and has a luminosity class of V corresponding to a main-sequence star.

Absolute magnitude -4.48

Spectral Type B2V

Color Index (B-V) 0.06

Temperature of 103 Tauri 9434K

The red dot in the diagram below shows where 103 Tauri is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of 103 Tauri. Attribution: Richard Powell / CC BY-SA

103 Tauri star system properties

103 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 103 Tauri double sysyem:

Main star magnitude 5.5

Secondary star magnitude 11.2

Magnitude difference 5.7

Separation 35.3 arcsec

Alternative designations of 103 Tauri

Flamsteed designation 103 Tauri

Henry Draper Catalogue HD32990

SAO Catalogue SAO76974

Hipparcos Catalogue HIP23900

Durchmusterung Catalogue BD+24 755

Aitken Double Star Catalogue ADS3709

In Evidence

Other stars in Taurus