40 Aurigae

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:

Color of 40 Aurigae ⬤

Magnitude of 40 Aurigae 5.36

Class

VISIBILITY RIGHT NOW 40 Aurigae is above the horizon from Greenwich, United Kingdom [change]. Altitude: 42°.

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:

Right Ascension J2000 06h 06m 35s

Declination J2000 +38° 28’ 58”

Galactic Longitude 173.87°

Galactic Latitude 8.53°

Constellation Auriga

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

Simplified finder chart for 40 Aurigae.

Visibility of 40 Aurigae from your location

Location: Greenwich, United Kingdom [change]
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 [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 51.5° RISE 6:22

Max altitude: 77.0° TRANSIT 18:06

Azimuth: 308.5° SET 5:54

RIGHT NOW 40 Aurigae is above the horizon from Greenwich, United Kingdom

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.

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.

Distance (parsec) 116.69 pc

Distance (light year) 380.40 ly

Heliocentric radial velocity 18 km/s

Proper Motion RA 0.007 arcsec/year

Proper Motion Dec -0.049 arcsec/year

Spectral properties of 40 Aurigae

40 Aurigae belongs to spectral class A4

Absolute magnitude 0.02

Spectral Type A4

Color Index (B-V) 0.25

Temperature of 40 Aurigae 7795K

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

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

Alternative designations of 40 Aurigae

Flamsteed designation 40 Aurigae

Henry Draper Catalogue HD41357

SAO Catalogue SAO58749

Hipparcos Catalogue HIP28946

Durchmusterung Catalogue BD+38 1377

FK5 Catalogue 2465

General Catalogue of Variable Stars Var?

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In Evidence

Other stars in Auriga