HR4544

Altitude: 28.4° Azimuth: 148.2° Direction: South-South-East

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 table below summarizes the key facts about HR4544:

Color of HR4544 ⬤

Magnitude of HR4544 5.64

Class Hypergiant

VISIBILITY RIGHT NOW

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

Altitude: 28.4°
Azimuth: 148.2°
Direction: South-South-East

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:

Right Ascension J2000 11h 51m 02s

Declination J2000 -05° 19’ 59”

Galactic Longitude 276.47°

Galactic Latitude 54.41°

Constellation Virgo

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

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° RISE 14:24

Max altitude: 33.2° TRANSIT 19:55

Azimuth: 264.7° SET 1:30

RIGHT NOW HR4544 is above the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR4544

The image below is a photograph of HR4544 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 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.

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);

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.

Distance (parsec) 79.43 pc

Distance (light year) 258.94 ly

Heliocentric radial velocity 12 km/s

Proper Motion RA 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.

Absolute magnitude 1.14

Spectral Type K0III

Color Index (B-V) 1.06

Temperature of HR4544 4603K

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

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

Alternative designations of HR4544

Henry Draper Catalogue HD102928

SAO Catalogue SAO138445

Hipparcos Catalogue HIP57791

Durchmusterung Catalogue BD-04 3152

FK5 Catalogue 1306

In Evidence

Other stars in Virgo