Your Guide to the Solar System and the Night Sky
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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 6:49  
clear_day Transit: 12:50  
SunsetSet: 18:50 south
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All Constellations » Auriga » 

45 Aurigae

Altitude: 35.5°   Azimuth: 46.5°   Direction: North-East

45 Aurigae is a giant star in the constellation of Auriga.

45 Aurigae visual magnitude is 5.36. Because of its reltive faintness, 45 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 45 Aurigae:


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

Altitude: 35.5°
Azimuth: 46.5°
Direction: North-East

Celestial coordinates and finder chart of 45 Aurigae

45 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 45 Aurigae are provided in the following table:

06h 21m 46s
+53° 27’ 07”

The simplified sky map below shows the position of 45 Aurigae in the sky:

Finder chart 45 Aurigae star
Simplified finder chart for 45 Aurigae.

Visibility of 45 Aurigae from your location

Location: Greenwich, United Kingdom edit_location_alt
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London

45 Aurigae is circumpolar and transits at 06:06 UTC (altitude: 88.0°)

Digitized Sky Survey image of 45 Aurigae

The image below is a photograph of 45 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 45 Aurigae is 0.02 arcsec per year in Right Ascension and -0.084 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of 45 Aurigae star
DSS2 image of 45 Aurigae. The red arrow shows the motion of 45 Aurigae during the next 10000 years (3.33 arcmin in Right Ascension and -14.00 arcmin in declination);

Distance of 45 Aurigae from the Sun and relative movement

45 Aurigae is distant 185.86 light years from the Sun and it is moving towards the Sun at the speed of 1 kilometers per second.

57.01 pc
185.86 ly
-1 km/s
0.02 arcsec/year
-0.084 arcsec/year

Spectral properties of 45 Aurigae

45 Aurigae belongs to spectral class F5 and has a luminosity class of III corresponding to a giant star.


The red dot in the diagram below shows where 45 Aurigae is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of 45 Aurigae. Attribution: Richard Powell / CC BY-SA

Alternative designations of 45 Aurigae