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A Complete Guide to the Solar System and the Night Sky
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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
SunriseRise: 6:40  
clear_day Transit: 12:10  
SunsetSet: 17:41
sunny DaytimeWhat's Visible Now?
All Constellations » Taurus » 

109 Tauri

Altitude: -10.7°   Azimuth: 31.5°   Direction: North-North-East

109 Tauri is a giant star in the constellation of Taurus.

109 Tauri visual magnitude is 4.94. Because of its moderate brightness, 109 Tauri should be easily visible from locations with dark skies, while it can be barely visible, or not visible at all, from skies affected by light pollution.

The proper motion of 109 Tauri is 0.012 arcsec per year in Right Ascension and -0.083 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of 109 Tauri star
DSS2 image of 109 Tauri. The red arrow shows the motion of 109 Tauri during the next 10000 years (2.00 arcmin in Right Ascension and -13.83 arcmin in declination);

Key facts about 109 Tauri


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

Altitude: -10.7°
Azimuth: 31.5°
Direction: North-North-East

Celestial coordinates and finder chart of 109 Tauri

109 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 109 Tauri are provided in the following table:

05h 19m 16s
+22° 05’ 47”

The simplified sky map below shows the position of 109 Tauri in the sky:

Finder chart 109 Tauri star
Simplified finder chart for 109 Tauri.

Visibility of 109 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 109 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: 67.9°
Max altitude: 60.6°
Azimuth: 292.1°

Distance of 109 Tauri from the Sun and relative movement

109 Tauri is distant 205.94 light years from the Sun and it is moving far from the Sun at the speed of 19 kilometers per second.

63.17 pc
205.94 ly
19 km/s
0.012 arcsec/year
-0.083 arcsec/year

Spectral properties of 109 Tauri

109 Tauri belongs to spectral class G8 and has a luminosity class of III corresponding to a giant star.


The red dot in the diagram below shows where 109 Tauri is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of 109 Tauri. Attribution: Richard Powell / CC BY-SA

Alternative designations of 109 Tauri