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🌎  Greenwich, United Kingdom [change]

HR4794

HR4794 is a variable giant star in the constellation of Centaurus.

HR4794 visual magnitude is 5.13. Because of its reltive faintness, HR4794 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 HR4794:

5.13
Giant
HR4794 is below the horizon from Greenwich, United Kingdom [change].

Celestial coordinates and finder chart of HR4794

HR4794 is situated south of the celestial equator, as such, it is more easily visible from the southern emisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR4794 are provided in the following table:

12h 35m 45s
-41° 01’ 18”
299.75°
21.75°
Centaurus

The simplified sky map below shows the position of HR4794 in the sky:

Finder chart HR4794 star
Simplified finder chart for HR4794.

Visibility of HR4794 from your location

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

HR4794 is currently not visible from Greenwich, United Kingdom [change]

Digitized Sky Survey image of HR4794

The image below is a photograph of HR4794 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 HR4794 is -0.107 arcsec per year in Right Ascension and -0.001 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

Image of HR4794 star
DSS2 image of HR4794. The red arrow shows the motion of HR4794 during the next 1000 years (-1.78 arcmin in Right Ascension and -0.02 arcmin in declination);

Distance of HR4794 from the Sun and relative movement

HR4794 is distant 112.72 light years from the Sun and it is moving towards the Sun at the speed of 11 kilometers per second.

34.58 pc
112.72 ly
-11 km/s
-0.107 arcsec/year
-0.001 arcsec/year

Spectral properties of HR4794

HR4794 belongs to spectral class A7 and has a luminosity class of III corresponding to a giant star.

2.44
A7III
8011K

The red dot in the diagram below shows where HR4794 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR4794. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR4794

SAO223542
SAO223542