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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: 6:52  
clear_day Transit: 12:11  
SunsetSet: 17:31
sleep NighttimeWhat's Visible Now?
All Constellations » Taurus » 

ι Tauri (iota Tauri)

Altitude: 29.8°   Azimuth: 267.8°   Direction: West

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

ι Tauri visual magnitude is 4.64. Because of its moderate brightness, ι 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 ι Tauri is 0.066 arcsec per year in Right Ascension and -0.042 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of ι Tauri (iota Tauri) star
DSS2 image of ι Tauri. The red arrow shows the motion of ι Tauri during the next 10000 years (11.00 arcmin in Right Ascension and -7.00 arcmin in declination);

Key facts about ι Tauri


ι Tauri (iota Tauri) is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 29.8°
Azimuth: 267.8°
Direction: West

Celestial coordinates and finder chart of ι Tauri

ι 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 ι Tauri are provided in the following table:

05h 03m 05s
+21° 35’ 23”

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

Finder chart ι Tauri (iota Tauri) star
Simplified finder chart for ι Tauri (iota Tauri).

Visibility of ι 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 ι Tauri (iota 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: 68.4°
Max altitude: 60.1°
Azimuth: 291.6°

Distance of ι Tauri from the Sun and relative movement

ι Tauri is distant 162.92 light years from the Sun and it is moving far from the Sun at the speed of 41 kilometers per second.

49.98 pc
162.92 ly
41 km/s
0.066 arcsec/year
-0.042 arcsec/year

Spectral properties of ι Tauri

ι Tauri belongs to spectral class A7 and has a luminosity class of V corresponding to a main-sequence star.


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

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

Alternative designations of ι Tauri

ι Tauri
(iota Tauri)