HR4874

Altitude: -57.4° Azimuth: 72.7° Direction: East-North-East

HR4874 is a double hypergiant star in the constellation of Centaurus.

HR4874 visual magnitude is 4.91. Because of its moderate brightness, HR4874 should be easily visible from locations with dark skyes, while it can be barely visible, or not visible at all, from skyes affected by light pollution.

The table below summarizes the key facts about HR4874:

Color of HR4874 ⬤

Magnitude of HR4874 4.91

Class Hypergiant

VISIBILITY RIGHT NOW

HR4874 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -57.4°
Azimuth: 72.7°
Direction: East-North-East

Celestial coordinates and finder chart of HR4874

HR4874 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 HR4874 are provided in the following table:

Right Ascension J2000 12h 50m 41s

Declination J2000 -33° 59’ 57”

Galactic Longitude 302.75°

Galactic Latitude 28.87°

Constellation Centaurus

The simplified sky map below shows the position of HR4874 in the sky:

Simplified finder chart for HR4874.

Visibility of HR4874 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 HR4874 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: 124.0° RISE 18:31

Max altitude: 4.5° TRANSIT 20:39

Azimuth: 236.0° SET 22:46

RIGHT NOW HR4874 is below the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR4874

The image below is a photograph of HR4874 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 HR4874 is -0.028 arcsec per year in Right Ascension and -0.02 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of HR4874. The red arrow shows the motion of HR4874 during the next 10000 years (-4.67 arcmin in Right Ascension and -3.33 arcmin in declination);

Distance of HR4874 from the Sun and relative movement

HR4874 is distant 388.56 light years from the Sun and it is moving far from the Sun at the speed of 4 kilometers per second.

Distance (parsec) 119.19 pc

Distance (light year) 388.56 ly

Heliocentric radial velocity 4 km/s

Proper Motion RA -0.028 arcsec/year

Proper Motion Dec -0.02 arcsec/year

Spectral properties of HR4874

HR4874 belongs to spectral class A0 and has a luminosity class of IV corresponding to a hypergiant star.

Absolute magnitude -0.47

Spectral Type A0IV

Color Index (B-V) -0.04

Temperature of HR4874 10653K

The red dot in the diagram below shows where HR4874 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR4874. Attribution: Richard Powell / CC BY-SA

HR4874 star system properties

HR4874 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 HR4874 double sysyem:

Main star magnitude 4.91

Secondary star magnitude 14.91

Magnitude difference 10

Separation 27.6 arcsec

Alternative designations of HR4874

Henry Draper Catalogue HD111597

SAO Catalogue SAO203863

Hipparcos Catalogue HIP62683

Durchmusterung Catalogue CD-33 8653

FK5 Catalogue 1331

In Evidence

Other stars in Centaurus