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🌎  Greenwich, United Kingdom [change]


HR4742 is a giant star in the constellation of Corvus.

HR4742 visual magnitude is 6.35. Because of its reltive faintness, HR4742 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 HR4742:

HR4742 is above the horizon from Greenwich, United Kingdom [change]. Altitude: 17°.

Celestial coordinates and finder chart of HR4742

HR4742 is situated close to the celestial equator, as such, it is at least partly visible from both hemispheres in certain times of the year. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR4742 are provided in the following table:

12h 27m 49s
-16° 37’ 54”

The simplified sky map below shows the position of HR4742 in the sky:

Finder chart HR4742 star
Simplified finder chart for HR4742.

Visibility of HR4742 from your location

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

Today's HR4742 rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 106.6°
Max altitude: 21.9°
Azimuth: 253.4°
HR4742 is above the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR4742

The image below is a photograph of HR4742 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 HR4742 is -0.018 arcsec per year in Right Ascension and 0.003 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR4742 star
DSS2 image of HR4742. The red arrow shows the motion of HR4742 during the next 10000 years (-3.00 arcmin in Right Ascension and 0.50 arcmin in declination);

Distance of HR4742 from the Sun and relative movement

HR4742 is distant 1,278.43 light years from the Sun and it is moving towards the Sun at the speed of 8 kilometers per second.

392.16 pc
1,278.43 ly
-8 km/s
-0.018 arcsec/year
0.003 arcsec/year

Spectral properties of HR4742

HR4742 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 HR4742 is situated in the Hertzsprungā€“Russell diagram.

HR Diagram
H-R diagram showing the position of HR4742. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR4742