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A Complete Guide to the Solar System and the Night Sky
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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
SunriseRise: 5:45  
clear_day Transit: 12:56  
SunsetSet: 20:09
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All Constellations » Centaurus » 

HR4438

Altitude: -23.2°   Azimuth: 186.3°   Direction: South

HR4438 is a variable supergiant star in the constellation of Centaurus.

HR4438 visual magnitude is 6.38. Because of its reltive faintness, HR4438 should be visible only from locations with dark skies, while it is not visible at all from skies affected by light pollution.

The proper motion of HR4438 is -0.007 arcsec per year in Right Ascension and 0.003 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.

Image of HR4438 star
DSS2 image of HR4438. The red arrow shows the motion of HR4438 during the next 100000 years (-11.67 arcmin in Right Ascension and 5.00 arcmin in declination);

Key facts about HR4438

6.38
Supergiant

HR4438 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -23.2°
Azimuth: 186.3°
Direction: South

Celestial coordinates and finder chart of HR4438

HR4438 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 HR4438 are provided in the following table:

11h 31m 14s
-61° 16’ 41”
293.45°
0.11°
Centaurus

The simplified sky map below shows the position of HR4438 in the sky:

Finder chart HR4438 star
Simplified finder chart for HR4438.

Visibility of HR4438 from your location

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

HR4438 is currently not visible from Greenwich, United Kingdom edit_location_alt

Distance of HR4438 from the Sun and relative movement

HR4438 is distant 4,657.14 light years from the Sun and it is moving towards the Sun at the speed of 4 kilometers per second.

1,428.57 pc
4,657.14 ly
-4 km/s
-0.007 arcsec/year
0.003 arcsec/year

Spectral properties of HR4438

HR4438 belongs to spectral class A3 and has a luminosity class of I corresponding to a supergiant star.

-4.39
A3I
6300K

The red dot in the diagram below shows where HR4438 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR4438. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR4438

SAO251437
SAO251437