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🌎  Greenwich, United Kingdom [change]


HR4809 is a dwarf star in the constellation of Corvus.

HR4809 visual magnitude is 6. Because of its reltive faintness, HR4809 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 HR4809:

HR4809 is below the horizon from Greenwich, United Kingdom [change].

Celestial coordinates and finder chart of HR4809

HR4809 is situated close to the celestial equator, as such, it is at least partly visible from both hemispheres in certain times of the year. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR4809 are provided in the following table:

12h 38m 44s
-18° 15’ 01”

The simplified sky map below shows the position of HR4809 in the sky:

Finder chart HR4809 star
Simplified finder chart for HR4809.

Visibility of HR4809 from your location

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

Today's HR4809 rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 108.3°
Max altitude: 20.3°
Azimuth: 251.7°
HR4809 is below the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR4809

The image below is a photograph of HR4809 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 HR4809 is -0.119 arcsec per year in Right Ascension and 0.025 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

Image of HR4809 star
DSS2 image of HR4809. The red arrow shows the motion of HR4809 during the next 1000 years (-1.98 arcmin in Right Ascension and 0.42 arcmin in declination);

Distance of HR4809 from the Sun and relative movement

HR4809 is distant 202.86 light years from the Sun and it is moving towards the Sun at the speed of 13 kilometers per second.

62.23 pc
202.86 ly
-13 km/s
-0.119 arcsec/year
0.025 arcsec/year

Spectral properties of HR4809

HR4809 belongs to spectral class A6


The red dot in the diagram below shows where HR4809 is situated in the Hertzsprungā€“Russell diagram.

HR Diagram
H-R diagram showing the position of HR4809. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR4809