HR4947

HR4947 is a hypergiant star in the constellation of Centaurus.

HR4947 visual magnitude is 6.54. Because of its reltive faintness, HR4947 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 HR4947:

Color of HR4947 ⬤

Magnitude of HR4947 6.54

Class Hypergiant

VISIBILITY RIGHT NOW HR4947 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Celestial coordinates and finder chart of HR4947

HR4947 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 HR4947 are provided in the following table:

Right Ascension J2000 13h 06m 54s

Declination J2000 -35° 51’ 42”

Galactic Longitude 306.44°

Galactic Latitude 26.91°

Constellation Centaurus

The simplified sky map below shows the position of HR4947 in the sky:

Simplified finder chart for HR4947.

Visibility of HR4947 from your location

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

Today's HR4947 rise, transit and set times from Greenwich, United Kingdom edit_location_alt are the following (all times relative to the local timezone Europe/London):

Azimuth: 125.9° RISE 20:03

Max altitude: 2.7° TRANSIT 21:42

Azimuth: 234.1° SET 23:20

RIGHT NOW HR4947 is below the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR4947

The image below is a photograph of HR4947 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 HR4947 is 0.041 arcsec per year in Right Ascension and -0.078 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of HR4947. The red arrow shows the motion of HR4947 during the next 10000 years (6.83 arcmin in Right Ascension and -13.00 arcmin in declination);

Distance of HR4947 from the Sun and relative movement

HR4947 is distant 229.25 light years from the Sun and it is moving far from the Sun at the speed of 16 kilometers per second.

Distance (parsec) 70.32 pc

Distance (light year) 229.25 ly

Heliocentric radial velocity 16 km/s

Proper Motion RA 0.041 arcsec/year

Proper Motion Dec -0.078 arcsec/year

Spectral properties of HR4947

HR4947 belongs to spectral class A0 and has a luminosity class of IV corresponding to a hypergiant star.

Absolute magnitude 2.30

Spectral Type A0IV

Color Index (B-V) -0.02

Temperature of HR4947 10382K

The red dot in the diagram below shows where HR4947 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR4947. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR4947

Henry Draper Catalogue HD113852

SAO Catalogue SAO204132

Hipparcos Catalogue HIP64003

Durchmusterung Catalogue CD-35 8441

In Evidence

Other stars in Centaurus