Your guide to the Solar System and the night sky
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🌎  Greenwich, United Kingdom [change]

HR4744

HR4744 is a hypergiant star in the constellation of Crux.

HR4744 visual magnitude is 6.04. Because of its reltive faintness, HR4744 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 HR4744:

6.04
Hypergiant
HR4744 is below the horizon from Greenwich, United Kingdom [change].

Celestial coordinates and finder chart of HR4744

HR4744 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 HR4744 are provided in the following table:

12h 28m 18s
-64° 20’ 29”
300.43°
-1.58°
Crux

The simplified sky map below shows the position of HR4744 in the sky:

Finder chart HR4744 star
Simplified finder chart for HR4744.

Visibility of HR4744 from your location

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

HR4744 is currently not visible from Greenwich, United Kingdom [change]

Digitized Sky Survey image of HR4744

The image below is a photograph of HR4744 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 HR4744 is -0.068 arcsec per year in Right Ascension and -0.027 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR4744 star
DSS2 image of HR4744. The red arrow shows the motion of HR4744 during the next 10000 years (-11.33 arcmin in Right Ascension and -4.50 arcmin in declination);

Distance of HR4744 from the Sun and relative movement

HR4744 is distant 317.12 light years from the Sun and it is moving far from the Sun at the speed of 9 kilometers per second.

97.28 pc
317.12 ly
9 km/s
-0.068 arcsec/year
-0.027 arcsec/year

Spectral properties of HR4744

HR4744 belongs to spectral class A0 and has a luminosity class of V corresponding to a hypergiant star.

1.10
A0V
9882K

The red dot in the diagram below shows where HR4744 is situated in the HertzsprungÔÇôRussell diagram.

HR Diagram
H-R diagram showing the position of HR4744. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR4744

SAO251920
SAO251920