Your guide to the Solar System and the night sky
Please donate now to help keep TheSkyLive ads-free. This site cannot run without your voluntary donations.
🌎  Greenwich, United Kingdom [change]

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:

6.39
Hypergiant
HR4838 is below the horizon from Greenwich, United Kingdom [change].

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 emisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR4838 are provided in the following table:

12h 43m 58s
-36° 20’ 57”
301.25°
26.5°
Centaurus

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

Finder chart HR4838 star
Simplified finder chart for HR4838.

Visibility of HR4838 from your location

Location: Greenwich, United Kingdom [change]
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 [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 126.3°
Max altitude: 2.2°
Azimuth: 233.7°
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.

Image of HR4838 star
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.

298.51 pc
973.13 ly
-1 km/s
0.013 arcsec/year
-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.

-0.98
A0V
10941K

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

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

Alternative designations of HR4838

SAO203756
SAO203756