HR4838

HR4838 is a hypergiant star in the constellation of Centaurus.

HR4838 visual magnitude is 6.39. Because of its reltive faintness, HR4838 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 HR4838:

Color of HR4838 ⬤

Magnitude of HR4838 6.39

Class Hypergiant

VISIBILITY RIGHT NOW HR4838 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Celestial coordinates and finder chart of HR4838

HR4838 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 HR4838 are provided in the following table:

Right Ascension J2000 12h 43m 58s

Declination J2000 -36° 20’ 57”

Galactic Longitude 301.25°

Galactic Latitude 26.5°

Constellation Centaurus

The simplified sky map below shows the position of HR4838 in the sky:

Simplified finder chart for HR4838.

Visibility of HR4838 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 HR4838 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: 126.3° RISE 19:26

Max altitude: 2.2° TRANSIT 20:55

Azimuth: 233.7° SET 22:25

RIGHT NOW HR4838 is below the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR4838

The image below is a photograph of HR4838 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 HR4838 is 0.013 arcsec per year in Right Ascension and -0.007 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of HR4838. The red arrow shows the motion of HR4838 during the next 10000 years (2.17 arcmin in Right Ascension and -1.17 arcmin in declination);

Distance of HR4838 from the Sun and relative movement

HR4838 is distant 973.13 light years from the Sun and it is moving towards the Sun at the speed of 1 kilometers per second.

Distance (parsec) 298.51 pc

Distance (light year) 973.13 ly

Heliocentric radial velocity -1 km/s

Proper Motion RA 0.013 arcsec/year

Proper Motion Dec -0.007 arcsec/year

Spectral properties of HR4838

HR4838 belongs to spectral class A0 and has a luminosity class of V corresponding to a hypergiant star.

Absolute magnitude -0.98

Spectral Type A0V

Color Index (B-V) -0.06

Temperature of HR4838 10941K

The red dot in the diagram below shows where HR4838 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR4838. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR4838

Henry Draper Catalogue HD110653

SAO Catalogue SAO203756

Hipparcos Catalogue HIP62128

Durchmusterung Catalogue CD-35 8155

FK5 Catalogue 3016

In Evidence

Other stars in Centaurus