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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: 6:59  
clear_day Transit: 12:12  
SunsetSet: 17:25
sunny DaytimeWhat's Visible Now?
All Constellations » Gemini » 

ι Geminorum (iota Geminorum)

Altitude: 30.1°   Azimuth: 82.2°   Direction: East

ι Geminorum is a giant star in the constellation of Gemini.

ι Geminorum visual magnitude is 3.79. Because of its moderate brightness, ι Geminorum should be easily visible from locations with dark skyes, while it can be barely visible, or not visible at all, from skyes affected by light pollution.

The proper motion of ι Geminorum is -0.123 arcsec per year in Right Ascension and -0.086 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

Image of ι Geminorum (iota Geminorum) star
DSS2 image of ι Geminorum. The red arrow shows the motion of ι Geminorum during the next 1000 years (-2.05 arcmin in Right Ascension and -1.43 arcmin in declination);

Key facts about ι Geminorum


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

Altitude: 30.1°
Azimuth: 82.2°
Direction: East

Celestial coordinates and finder chart of ι Geminorum

ι Geminorum is situated north of the celestial equator, as such, it is more easily visible from the northern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of ι Geminorum are provided in the following table:

07h 25m 43s
+27° 47’ 53”

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

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

Visibility of ι Geminorum 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 Geminorum (iota Geminorum) 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: 62.2°
Max altitude: 66.3°
Azimuth: 297.8°

Distance of ι Geminorum from the Sun and relative movement

ι Geminorum is distant 125.87 light years from the Sun and it is moving far from the Sun at the speed of 8 kilometers per second.

38.61 pc
125.87 ly
8 km/s
-0.123 arcsec/year
-0.086 arcsec/year

Spectral properties of ι Geminorum

ι Geminorum belongs to spectral class G9 and has a luminosity class of III corresponding to a giant star.


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

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

Alternative designations of ι Geminorum

ι Geminorum
(iota Geminorum)
60 Geminorum