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🌎  Greenwich, United Kingdom [change]


HR4758 is a multiple hypergiant star in the constellation of Corvus.

HR4758 visual magnitude is 6.35. Because of its reltive faintness, HR4758 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 HR4758:

HR4758 is above the horizon from Greenwich, United Kingdom [change]. Altitude: 18°.

Celestial coordinates and finder chart of HR4758

HR4758 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 HR4758 are provided in the following table:

12h 30m 04s
-13° 23’ 35”

The simplified sky map below shows the position of HR4758 in the sky:

Finder chart HR4758 star
Simplified finder chart for HR4758.

Visibility of HR4758 from your location

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

Today's HR4758 rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 103.4°
Max altitude: 25.1°
Azimuth: 256.6°
HR4758 is above the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR4758

The image below is a photograph of HR4758 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 HR4758 is -0.248 arcsec per year in Right Ascension and -0.041 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

Image of HR4758 star
DSS2 image of HR4758. The red arrow shows the motion of HR4758 during the next 1000 years (-4.13 arcmin in Right Ascension and -0.68 arcmin in declination);

Distance of HR4758 from the Sun and relative movement

HR4758 is distant 81.44 light years from the Sun

24.98 pc
81.44 ly
-0.248 arcsec/year
-0.041 arcsec/year

Spectral properties of HR4758

HR4758 belongs to spectral class G0 and has a luminosity class of V corresponding to a hypergiant star.


The red dot in the diagram below shows where HR4758 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR4758. Attribution: Richard Powell / CC BY-SA

HR4758 star system properties

HR4758 is a visual double star which can be observed with the help of medium or large telescopes. The table below shows key information about the HR4758 double sysyem:

1.5 arcsec

Alternative designations of HR4758

Gl 469.2A