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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 6:47  
clear_day Transit: 12:50  
SunsetSet: 18:52 south
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All Constellations » Gemini » 

70 Geminorum

Altitude: -1.5°   Azimuth: 343.0°   Direction: North-North-West

70 Geminorum is a multiple hypergiant star in the constellation of Gemini.

70 Geminorum visual magnitude is 5.56. Because of its reltive faintness, 70 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 70 Geminorum:


70 Geminorum is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -1.5°
Azimuth: 343.0°
Direction: North-North-West

Celestial coordinates and finder chart of 70 Geminorum

70 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 70 Geminorum are provided in the following table:

07h 38m 32s
+35° 02’ 54”

The simplified sky map below shows the position of 70 Geminorum in the sky:

Finder chart 70 Geminorum star
Simplified finder chart for 70 Geminorum.

Visibility of 70 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 70 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: 55.0°
Max altitude: 73.6°
Azimuth: 305.0°

Digitized Sky Survey image of 70 Geminorum

The image below is a photograph of 70 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 70 Geminorum is 0.037 arcsec per year in Right Ascension and 0.03 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of 70 Geminorum star
DSS2 image of 70 Geminorum. The red arrow shows the motion of 70 Geminorum during the next 10000 years (6.17 arcmin in Right Ascension and 5.00 arcmin in declination);

Distance of 70 Geminorum from the Sun and relative movement

70 Geminorum is distant 306.10 light years from the Sun and it is moving towards the Sun at the speed of 36 kilometers per second.

93.90 pc
306.10 ly
-36 km/s
0.037 arcsec/year
0.03 arcsec/year

Spectral properties of 70 Geminorum

70 Geminorum belongs to spectral class K0 and has a luminosity class of III corresponding to a hypergiant star.


The red dot in the diagram below shows where 70 Geminorum is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of 70 Geminorum. Attribution: Richard Powell / CC BY-SA

70 Geminorum star system properties

70 Geminorum is a visual double star which can be observed with the help of small or medium telescopes. The table below shows key information about the 70 Geminorum double sysyem:

159.9 arcsec

Alternative designations of 70 Geminorum

70 Geminorum