HR5104

HR5104 is a variable giant star in the constellation of Centaurus.

HR5104 visual magnitude is 6.44. Because of its reltive faintness, HR5104 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 HR5104:

Color of HR5104 ⬤

Magnitude of HR5104 6.44

Class Giant

VISIBILITY RIGHT NOW HR5104 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Celestial coordinates and finder chart of HR5104

HR5104 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 HR5104 are provided in the following table:

Right Ascension J2000 13h 34m 43s

Declination J2000 -33° 18’ 38”

Galactic Longitude 313.24°

Galactic Latitude 28.69°

Constellation Centaurus

The simplified sky map below shows the position of HR5104 in the sky:

Simplified finder chart for HR5104.

Visibility of HR5104 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 HR5104 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: 123.3° RISE 19:53

Max altitude: 5.2° TRANSIT 22:10

Azimuth: 236.7° SET 0:26

RIGHT NOW HR5104 is below the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR5104

The image below is a photograph of HR5104 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 HR5104 is -0.049 arcsec per year in Right Ascension and -0.012 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of HR5104. The red arrow shows the motion of HR5104 during the next 10000 years (-8.17 arcmin in Right Ascension and -2.00 arcmin in declination);

Distance of HR5104 from the Sun and relative movement

HR5104 is distant 903.05 light years from the Sun and it is moving towards the Sun at the speed of 9 kilometers per second.

Distance (parsec) 277.01 pc

Distance (light year) 903.05 ly

Heliocentric radial velocity -9 km/s

Proper Motion RA -0.049 arcsec/year

Proper Motion Dec -0.012 arcsec/year

Spectral properties of HR5104

HR5104 belongs to spectral class K2 and has a luminosity class of III corresponding to a giant star.

Absolute magnitude -0.77

Spectral Type K2III

Color Index (B-V) 1.26

Temperature of HR5104 4194K

The red dot in the diagram below shows where HR5104 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR5104. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR5104

Henry Draper Catalogue HD118010

SAO Catalogue SAO204612

Hipparcos Catalogue HIP66254

Durchmusterung Catalogue CD-32 9459

FK5 Catalogue 3082

General Catalogue of Variable Stars 6315

In Evidence

Other stars in Centaurus