We use cookies to deliver essential features and to measure their performance. By using this site you accept our Privacy Policies.
Help keep this site free and ads-free: donate now!
public LocationGreenwich, United Kingdom
TimezoneEurope/London
Sunrise: 4:42 
Transit: 12:58 
Sunset: 21:15
sunny   (Daytime)   What's Visible Now?

1 Geminorum

Above the horizon.  Rise: 5:22 | Tran: 13:30 | Set: 21:39
Altitude: 46.1°   Azimuth: 246.9°   Direction: West-South-West

1 Geminorum is a variable and multiple giant star of spectral class G7 in the constellation of Gemini.

1 Geminorum visual magnitude is 4.16. Because of its moderate brightness, 1 Geminorum is easily visible to the naked eye from locations with dark skies, while it might be barely visible, or not visible at all, from light-polluted skies.

Celestial coordinates and finder chart of 1 Geminorum

Finder chart 1 Geminorum star
Simplified finder chart for 1 Geminorum.

1 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 1 Geminorum are provided in the following table:

06h 04m 07s
+23° 15’ 47”
186.99°
0.72°
Gemini
Image of 1 Geminorum star
DSS2 image of 1 Geminorum. The red arrow shows the motion of 1 Geminorum during the next 1000 years (-0.13 arcmin in Right Ascension and -1.67 arcmin in declination);

Key facts about 1 Geminorum

4.16
Giant

and has a luminosity class of III corresponding to a giant star.

0.84
G7III
5221K

The red dot in the diagram below shows where 1 Geminorum is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of 1 Geminorum. Attribution: Richard Powell / CC BY-SA

1 Geminorum star system properties

1 Geminorum is a visual double star which can be observed only with the help of very large telescopes. The table below shows key information about the 1 Geminorum double sysyem:

4.16
4.56
0.4
0.2 arcsec

Distance of 1 Geminorum from the Sun and relative movement

1 Geminorum is distant 150.65 light years from the Sun and it is moving far from the Sun at the speed of 20 kilometers per second.

46.21 pc
150.65 ly
20 km/s
-0.008 arcsec/year
-0.1 arcsec/year

Alternative designations of 1 Geminorum

1 Geminorum
SAO77915
SAO77915

Visibility of 1 Geminorum from your location

Today's 1 Geminorum rise, transit and set times from Greenwich, United Kingdom are the following (all times relative to the local timezone Europe/London):

Azimuth: 66.7°
Max altitude: 61.8°
Azimuth: 293.3°