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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: 6:59  
clear_day Transit: 12:12  
SunsetSet: 17:25
sleep NighttimeWhat's Visible Now?
All Constellations » Virgo » 

HR4544

Altitude: 26.6°   Azimuth: 217.3°   Direction: South-West

HR4544 is a hypergiant star in the constellation of Virgo.

HR4544 visual magnitude is 5.64. Because of its reltive faintness, HR4544 should be visible only from locations with dark skyes, while it is not visible at all from skyes affected by light pollution.

The proper motion of HR4544 is 0.003 arcsec per year in Right Ascension and 0 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.

Image of HR4544 star
DSS2 image of HR4544. The red arrow shows the motion of HR4544 during the next 100000 years (5.00 arcmin in Right Ascension and 0.00 arcmin in declination);

Key facts about HR4544

5.64
Hypergiant

HR4544 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 26.6°
Azimuth: 217.3°
Direction: South-West

Celestial coordinates and finder chart of HR4544

HR4544 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 HR4544 are provided in the following table:

11h 51m 02s
-05° 19’ 59”
276.47°
54.41°
Virgo

The simplified sky map below shows the position of HR4544 in the sky:

Finder chart HR4544 star
Simplified finder chart for HR4544.

Visibility of HR4544 from your location

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

Today's HR4544 rise, transit and set times from Greenwich, United Kingdom edit_location_alt are the following (all times relative to the local timezone Europe/London):

Azimuth: 95.3°
Max altitude: 33.2°
Azimuth: 264.7°

Distance of HR4544 from the Sun and relative movement

HR4544 is distant 258.94 light years from the Sun and it is moving far from the Sun at the speed of 12 kilometers per second.

79.43 pc
258.94 ly
12 km/s
0.003 arcsec/year

Spectral properties of HR4544

HR4544 belongs to spectral class K0 and has a luminosity class of III corresponding to a hypergiant star.

1.14
K0III
4603K

The red dot in the diagram below shows where HR4544 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR4544. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR4544

SAO138445
SAO138445