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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: 7:43  
clear_day Transit: 11:47  
SunsetSet: 15:52 south
sunny DaytimeWhat's Visible Now?
All Constellations » Gemini » 

ω Geminorum (omega Geminorum)

Altitude: -9.6°   Azimuth: 331.6°   Direction: North-North-West

ω Geminorum is a variable bright giant star in the constellation of Gemini.

ω Geminorum visual magnitude is 5.18. Because of its reltive faintness, ω Geminorum 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 ω Geminorum:

Bright giant

ω Geminorum (omega Geminorum) is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -9.6°
Azimuth: 331.6°
Direction: North-North-West

Celestial coordinates and finder chart of ω Geminorum

ω Geminorum 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 ω Geminorum are provided in the following table:

07h 02m 24s
+24° 12’ 55”

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

Finder chart ω Geminorum (omega Geminorum) star
Simplified finder chart for ω Geminorum (omega Geminorum).

Visibility of ω 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 ω Geminorum (omega 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: 65.8°
Max altitude: 62.7°
Azimuth: 294.2°

Digitized Sky Survey image of ω Geminorum

The image below is a photograph of ω Geminorum 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 ω Geminorum is -0.009 arcsec per year in Right Ascension and -0.001 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.

Image of ω Geminorum (omega Geminorum) star
DSS2 image of ω Geminorum. The red arrow shows the motion of ω Geminorum during the next 100000 years (-15.00 arcmin in Right Ascension and -1.67 arcmin in declination);

Distance of ω Geminorum from the Sun and relative movement

ω Geminorum is distant 1,654.82 light years from the Sun and it is moving towards the Sun at the speed of 9 kilometers per second.

507.61 pc
1,654.82 ly
-9 km/s
-0.009 arcsec/year
-0.001 arcsec/year

Spectral properties of ω Geminorum

ω Geminorum belongs to spectral class G5 and has a luminosity class of II corresponding to a bright giant star.


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

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

Alternative designations of ω Geminorum

ω Geminorum
(omega Geminorum)
42 Geminorum