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🌎  Greenwich, United Kingdom [change]

HR4509

HR4509 is a hypergiant star in the constellation of Chamaeleon.

HR4509 visual magnitude is 6.39. Because of its reltive faintness, HR4509 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 HR4509:

6.39
Hypergiant
HR4509 is below the horizon from Greenwich, United Kingdom [change].

Celestial coordinates and finder chart of HR4509

HR4509 is situated close to the southern celestial pole and, as such, it is easilty visible for most part of the year from the southern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR4509 are provided in the following table:

11h 42m 55s
-79° 18’ 23”
299.66°
-16.87°
Chamaeleon

The simplified sky map below shows the position of HR4509 in the sky:

Finder chart HR4509 star
Simplified finder chart for HR4509.

Visibility of HR4509 from your location

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

HR4509 is currently not visible from Greenwich, United Kingdom [change]

Digitized Sky Survey image of HR4509

The image below is a photograph of HR4509 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 HR4509 is 0.132 arcsec per year in Right Ascension and -0.008 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

Image of HR4509 star
DSS2 image of HR4509. The red arrow shows the motion of HR4509 during the next 1000 years (2.20 arcmin in Right Ascension and -0.13 arcmin in declination);

Distance of HR4509 from the Sun and relative movement

HR4509 is distant 181.62 light years from the Sun and it is moving far from the Sun at the speed of 33 kilometers per second.

55.71 pc
181.62 ly
33 km/s
0.132 arcsec/year
-0.008 arcsec/year

Spectral properties of HR4509

HR4509 belongs to spectral class K0 and has a luminosity class of III corresponding to a hypergiant star.

2.66
K0III
4996K

The red dot in the diagram below shows where HR4509 is situated in the HertzsprungÔÇôRussell diagram.

HR Diagram
H-R diagram showing the position of HR4509. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR4509

SAO256865
SAO256865