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public LocationGreenwich, UK
TimezoneEurope/London
Sunrise: 5:15 
Transit: 13:06 
Sunset: 20:56
wb_twilight   (Civil Twilight)   What's Visible Now?
All Constellations » Gemini » 

39 Geminorum

Above the horizon.  Rise: 3:17 | Tran: 11:45 | Set: 20:14
Alt: 11.98°   Az: 62.99°   Direction: East-North-East

39 Geminorum is a double main-sequence star of spectral class F7 in the constellation of Gemini.

39 Geminorum visual magnitude is 6.1. Because of its faintness, 39 Geminorum is visible to the naked eye only from locations with very dark skies, while it is not visible at all from skies affected by light pollution.

Image of 39 Geminorum star
DSS2 image of 39 Geminorum. The red arrow shows the motion of 39 Geminorum during the next 1000 years (-2.80 arcmin in Right Ascension and 1.55 arcmin in declination);

Celestial Coordinates

Apparent

07h 00m 18s
+26° 02’ 45”
17h 03m 46s
00h 04m 04s

J2000

06h 58m 47s
+26° 04’ 51”

Galactic Coordinates

190.09°
13.07°

Finder Chart

Finder chart 39 Geminorum star
Simplified finder chart for 39 Geminorum.

Magnitude, Color, Spectral Class

6.1
Main-sequence

2.72
F7V
6576K

The red dot in the diagram below shows where 39 Geminorum is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of 39 Geminorum. Attribution: Richard Powell / CC BY-SA

Star System Properties

39 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 39 Geminorum double sysyem:

6.1
12.1
6
28.8 arcsec

Distance, Radial Speed, Proper Motion

39 Geminorum is distant 154.50 light years from the Sun and it is moving far from the Sun at the speed of 6 kilometers per second.

47.39
154.50
6 km/s
-0.168 arcsec/y
0.093"/y

Alternative Designations

39 Geminorum
SAO78929
SAO78929

Visibility from Your Location

Today's 39 Geminorum rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 64.0°
Max altitude: 64.6°
Azimuth: 296.0°