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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
north SunriseRise: 7:41  
clear_day Transit: 11:47  
SunsetSet: 15:53 south
sleep NighttimeWhat's Visible Now?
All Constellations » Taurus » 

117 Tauri

Altitude: 40.1°   Azimuth: 244.2°   Direction: West-South-West

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

117 Tauri visual magnitude is 5.77. Because of its reltive faintness, 117 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 117 Tauri:


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

Altitude: 40.1°
Azimuth: 244.2°
Direction: West-South-West

Celestial coordinates and finder chart of 117 Tauri

117 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 117 Tauri are provided in the following table:

05h 28m 01s
+17° 14’ 20”

The simplified sky map below shows the position of 117 Tauri in the sky:

Finder chart 117 Tauri star
Simplified finder chart for 117 Tauri.

Visibility of 117 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 117 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: 72.8°
Max altitude: 55.8°
Azimuth: 287.2°

Digitized Sky Survey image of 117 Tauri

The image below is a photograph of 117 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 117 Tauri is 0.02 arcsec per year in Right Ascension and -0.049 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of 117 Tauri star
DSS2 image of 117 Tauri. The red arrow shows the motion of 117 Tauri during the next 10000 years (3.33 arcmin in Right Ascension and -8.17 arcmin in declination);

Distance of 117 Tauri from the Sun and relative movement

117 Tauri is distant 704.10 light years from the Sun and it is moving towards the Sun at the speed of 23 kilometers per second.

215.98 pc
704.10 ly
-23 km/s
0.02 arcsec/year
-0.049 arcsec/year

Spectral properties of 117 Tauri

117 Tauri belongs to spectral class M1 and has a luminosity class of III corresponding to a giant star.


The red dot in the diagram below shows where 117 Tauri is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of 117 Tauri. Attribution: Richard Powell / CC BY-SA

Alternative designations of 117 Tauri