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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: 7:01  
clear_day Transit: 12:12  
SunsetSet: 17:24
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All Constellations » Centaurus » 

HR4796

Altitude: -1.6°   Azimuth: 174.1°   Direction: South

HR4796 is a multiple hypergiant star in the constellation of Centaurus.

HR4796 visual magnitude is 5.8. Because of its reltive faintness, HR4796 should be visible only from locations with dark skyes, while it is not visible at all from skyes affected by light pollution.

The proper motion of HR4796 is -0.034 arcsec per year in Right Ascension and -0.037 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR4796 star
DSS2 image of HR4796. The red arrow shows the motion of HR4796 during the next 10000 years (-5.67 arcmin in Right Ascension and -6.17 arcmin in declination);

Key facts about HR4796

5.8
Hypergiant

HR4796 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -1.6°
Azimuth: 174.1°
Direction: South

Celestial coordinates and finder chart of HR4796

HR4796 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 HR4796 are provided in the following table:

12h 36m 01s
-39° 52’ 11”
299.72°
22.91°
Centaurus

The simplified sky map below shows the position of HR4796 in the sky:

Finder chart HR4796 star
Simplified finder chart for HR4796.

Visibility of HR4796 from your location

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

HR4796 is currently not visible from Greenwich, United Kingdom edit_location_alt

Distance of HR4796 from the Sun and relative movement

HR4796 is distant 218.65 light years from the Sun and it is moving far from the Sun at the speed of 6 kilometers per second.

67.07 pc
218.65 ly
6 km/s
-0.034 arcsec/year
-0.037 arcsec/year

Spectral properties of HR4796

HR4796 belongs to spectral class A0 and has a luminosity class of V corresponding to a hypergiant star.

1.67
A0V
10002K

The red dot in the diagram below shows where HR4796 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR4796. Attribution: Richard Powell / CC BY-SA

HR4796 star system properties

HR4796 is a visual double star which can be observed only with the help of very large telescopes. The table below shows key information about the HR4796 double sysyem:

5.8
11.9
6.1
40 arcsec

Alternative designations of HR4796

SAO203621
SAO203621