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

40 Draconis

Above the horizon.  Circumpolar today
Alt: 41.49°   Az: 0.59°   Direction: North

40 Draconis is a variable and multiple star of spectral class F7 in the constellation of Draco.

40 Draconis visual magnitude is 6.04. Because of its faintness, 40 Draconis 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 40 Draconis star
DSS2 image of 40 Draconis. The red arrow shows the motion of 40 Draconis during the next 1000 years (0.75 arcmin in Right Ascension and 2.15 arcmin in declination);

Celestial Coordinates

Apparent

17h 58m 12s
+80° 00’ 01”
12h 10m 09s
06h 08m 22s

J2000

18h 00m 03s
+80° 00’ 02”

Galactic Coordinates

111.78°
28.91°

Finder Chart

Finder chart 40 Draconis star
Simplified finder chart for 40 Draconis.

Magnitude, Color, Spectral Class

6.04

2.51
F7
6344K

The red dot in the diagram below shows where 40 Draconis is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of 40 Draconis. Attribution: Richard Powell / CC BY-SA

Star System Properties

40 Draconis 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 40 Draconis double sysyem:

6.04
6.44
0.4
19.3 arcsec

Distance, Radial Speed, Proper Motion

40 Draconis is distant 165.99 light years from the Sun and it is moving far from the Sun at the speed of 4 kilometers per second.

50.92
165.99
4 km/s
0.045 arcsec/y
0.129"/y

Alternative Designations

40 Draconis
SAO8994
SAO8994

Visibility from Your Location

40 Draconis is circumpolar and transits at 21:41 UTC (altitude: 61.5°)