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A Complete Guide to the Solar System and the Night Sky
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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
SunriseRise: 5:43  
clear_day Transit: 12:56  
SunsetSet: 20:10
sunny DaytimeWhat's Visible Now?
All Constellations » Crux » 


Altitude: -58.5°   Azimuth: 131.2°   Direction: South-East

HR4747 is a giant star in the constellation of Crux.

HR4747 visual magnitude is 6.22. Because of its reltive faintness, HR4747 should be visible only from locations with dark skies, while it is not visible at all from skies affected by light pollution.

The proper motion of HR4747 is -0.034 arcsec per year in Right Ascension and -0.014 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR4747 star
DSS2 image of HR4747. The red arrow shows the motion of HR4747 during the next 10000 years (-5.67 arcmin in Right Ascension and -2.33 arcmin in declination);

Key facts about HR4747


HR4747 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -58.5°
Azimuth: 131.2°
Direction: South-East

Celestial coordinates and finder chart of HR4747

HR4747 is situated south of the celestial equator, as such, it is more easily visible from the southern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR4747 are provided in the following table:

12h 28m 25s
-61° 47’ 43”

The simplified sky map below shows the position of HR4747 in the sky:

Finder chart HR4747 star
Simplified finder chart for HR4747.

Visibility of HR4747 from your location

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

HR4747 is currently not visible from Greenwich, United Kingdom edit_location_alt

Distance of HR4747 from the Sun and relative movement

HR4747 is distant 493.94 light years from the Sun and it is moving towards the Sun at the speed of 14 kilometers per second.

151.52 pc
493.94 ly
-14 km/s
-0.034 arcsec/year
-0.014 arcsec/year

Spectral properties of HR4747

HR4747 belongs to spectral class K2 and has a luminosity class of III corresponding to a giant star.


The red dot in the diagram below shows where HR4747 is situated in the HertzsprungÔÇôRussell diagram.

HR Diagram
H-R diagram showing the position of HR4747. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR4747