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public  Greenwich, UK Greenwich, UK  ⓘ
TimezoneEurope/London
Sunrise: 5:13 
Transit: 12:56 
Sunset: 20:39
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All Constellations » Gemini » 

1 Geminorum

Above the horizon.  Rise: 7:35 | Tran: 15:43 | Set: 23:51
Alt: 61.11°   Az: 195.34°   Direction: South-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.

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);

Celestial Coordinates

Apparent

06h 05m 39s
+23° 15’ 37”
00h 31m 59s
06h 37m 38s

J2000

06h 04m 07s
+23° 15’ 47”

Galactic Coordinates

186.99°
0.72°

Finder Chart

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Finder chart for 1 Geminorum.

Magnitude, Color, Spectral Class

4.16
Giant

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

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, Radial Speed, Proper Motion

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
150.65
20 km/s
-0.008 arcsec/y
-0.1"/y

Alternative Designations

1 Geminorum
SAO77915
SAO77915

Visibility from Your Location

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

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