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A Complete Guide to the Solar System and the Night Sky
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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 7:48  
clear_day Transit: 11:49  
SunsetSet: 15:50 south
sunny DaytimeWhat's Visible Now?
All Constellations » Auriga » 

40 Aurigae

Altitude: 21.9°   Azimuth: 304.9°   Direction: North-West

40 Aurigae is a variable star in the constellation of Auriga.

40 Aurigae visual magnitude is 5.36. Because of its reltive faintness, 40 Aurigae 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 40 Aurigae:


40 Aurigae is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 21.9°
Azimuth: 304.9°
Direction: North-West

Celestial coordinates and finder chart of 40 Aurigae

40 Aurigae 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 40 Aurigae are provided in the following table:

06h 06m 35s
+38° 28’ 58”

The simplified sky map below shows the position of 40 Aurigae in the sky:

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

Visibility of 40 Aurigae 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 40 Aurigae 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: 51.5°
Max altitude: 77.0°
Azimuth: 308.5°

Digitized Sky Survey image of 40 Aurigae

The image below is a photograph of 40 Aurigae 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 40 Aurigae is 0.007 arcsec per year in Right Ascension and -0.049 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of 40 Aurigae star
DSS2 image of 40 Aurigae. The red arrow shows the motion of 40 Aurigae during the next 10000 years (1.17 arcmin in Right Ascension and -8.17 arcmin in declination);

Distance of 40 Aurigae from the Sun and relative movement

40 Aurigae is distant 380.40 light years from the Sun and it is moving far from the Sun at the speed of 18 kilometers per second.

116.69 pc
380.40 ly
18 km/s
0.007 arcsec/year
-0.049 arcsec/year

Spectral properties of 40 Aurigae

40 Aurigae belongs to spectral class A4


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

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

Alternative designations of 40 Aurigae