HR1143

HR1143 is a double giant star in the constellation of Eridanus.

HR1143 visual magnitude is 4.59. Because of its moderate brightness, HR1143 should be easily visible from locations with dark skyes, while it can be barely visible, or not visible at all, from skyes affected by light pollution.

The table below summarizes the key facts about HR1143:

Color of HR1143 ⬤

Magnitude of HR1143 4.59

Class Giant

VISIBILITY RIGHT NOW HR1143 is below the horizon from Greenwich, United Kingdom [change].

Celestial coordinates and finder chart of HR1143

HR1143 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 HR1143 are provided in the following table:

Right Ascension J2000 03h 42m 50s

Declination J2000 -37° 18’ 48”

Galactic Longitude 239.76°

Galactic Latitude -52.69°

Constellation Eridanus

The simplified sky map below shows the position of HR1143 in the sky:

Simplified finder chart for HR1143.

Visibility of HR1143 from your location

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

Today's HR1143 rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 127.3° RISE 14:57

Max altitude: 1.2° TRANSIT 16:03

Azimuth: 232.7° SET 17:10

RIGHT NOW HR1143 is below the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR1143

The image below is a photograph of HR1143 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 HR1143 is -0.088 arcsec per year in Right Ascension and -0.077 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of HR1143. The red arrow shows the motion of HR1143 during the next 10000 years (-14.67 arcmin in Right Ascension and -12.83 arcmin in declination);

Distance of HR1143 from the Sun and relative movement

HR1143 is distant 177.75 light years from the Sun and it is moving far from the Sun at the speed of 10 kilometers per second.

Distance (parsec) 54.53 pc

Distance (light year) 177.75 ly

Heliocentric radial velocity 10 km/s

Proper Motion RA -0.088 arcsec/year

Proper Motion Dec -0.077 arcsec/year

Spectral properties of HR1143

HR1143 belongs to spectral class K2 and has a luminosity class of III corresponding to a giant star.

Absolute magnitude 0.91

Spectral Type K2III

Color Index (B-V) 1.2

Temperature of HR1143 4309K

The red dot in the diagram below shows where HR1143 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR1143. Attribution: Richard Powell / CC BY-SA

HR1143 star system properties

HR1143 is a visual double star which can be observed only with the help of very large telescopes. The table below shows key information about the HR1143 double sysyem:

Main star magnitude 4.59

Secondary star magnitude 12.19

Magnitude difference 7.6

Separation 5.4 arcsec

Alternative designations of HR1143

Henry Draper Catalogue HD23319

SAO Catalogue SAO194475

Hipparcos Catalogue HIP17351

Durchmusterung Catalogue CD-37 1415

FK5 Catalogue 2265

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In Evidence

Other stars in Eridanus