Your guide to the Solar System and the night sky
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🌎  Observing from: Greenwich, United Kingdom [change]


HR4006 is a giant star in the constellation of Leo.

HR4006 visual magnitude is 6.04. Because of its reltive faintness, HR4006 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 HR4006:

HR4006 is below the horizon from Greenwich, United Kingdom [change].

Celestial coordinates and finder chart of HR4006

HR4006 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 HR4006 are provided in the following table:

10h 13m 49s
+27° 08’ 08”

The simplified sky map below shows the position of HR4006 in the sky:

Finder chart HR4006 star
Simplified finder chart for HR4006.

Visibility of HR4006 from your location

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

Today's HR4006 rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 62.9°
Max altitude: 65.7°
Azimuth: 297.1°
HR4006 is below the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR4006

The image below is a photograph of HR4006 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 HR4006 is -0.018 arcsec per year in Right Ascension and 0.002 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR4006 star
DSS2 image of HR4006. The red arrow shows the motion of HR4006 during the next 10000 years (-3.00 arcmin in Right Ascension and 0.33 arcmin in declination);

Distance of HR4006 from the Sun and relative movement

HR4006 is distant 388.56 light years from the Sun and it is moving far from the Sun at the speed of 10 kilometers per second.

119.19 pc
388.56 ly
10 km/s
-0.018 arcsec/year
0.002 arcsec/year

Spectral properties of HR4006

HR4006 belongs to spectral class G3 and has a luminosity class of III corresponding to a giant star.


The red dot in the diagram below shows where HR4006 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR4006. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR4006