HR1139

Altitude: -27.9° Azimuth: 289.5° Direction: West-North-West

HR1139 is a star in the constellation of Eridanus.

HR1139 visual magnitude is 5.6. Because of its reltive faintness, HR1139 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 HR1139:

Color of HR1139 ⬤

Magnitude of HR1139 5.6

Class

VISIBILITY RIGHT NOW

HR1139 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -27.9°
Azimuth: 289.5°
Direction: West-North-West

Celestial coordinates and finder chart of HR1139

HR1139 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 HR1139 are provided in the following table:

Right Ascension J2000 03h 43m 33s

Declination J2000 -10° 29’ 08”

Galactic Longitude 199.05°

Galactic Latitude -46.28°

Constellation Eridanus

The simplified sky map below shows the position of HR1139 in the sky:

Simplified finder chart for HR1139.

Visibility of HR1139 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 HR1139 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: 100.5° RISE 17:17

Max altitude: 28.0° TRANSIT 22:22

Azimuth: 259.5° SET 3:30

Digitized Sky Survey image of HR1139

The image below is a photograph of HR1139 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 HR1139 is -0.014 arcsec per year in Right Ascension and -0.017 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of HR1139. The red arrow shows the motion of HR1139 during the next 10000 years (-2.33 arcmin in Right Ascension and -2.83 arcmin in declination);

Distance of HR1139 from the Sun and relative movement

HR1139 is distant 139.91 light years from the Sun and it is moving far from the Sun at the speed of 16 kilometers per second.

Distance (parsec) 42.92 pc

Distance (light year) 139.91 ly

Heliocentric radial velocity 16 km/s

Proper Motion RA -0.014 arcsec/year

Proper Motion Dec -0.017 arcsec/year

Spectral properties of HR1139

HR1139 belongs to spectral class A5

Absolute magnitude 2.44

Spectral Type A5

Color Index (B-V) 0.22

Temperature of HR1139 8011K

The red dot in the diagram below shows where HR1139 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR1139. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR1139

Henry Draper Catalogue HD23281

SAO Catalogue SAO149132

Hipparcos Catalogue HIP17395

Durchmusterung Catalogue BD-10 729

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In Evidence

Other stars in Eridanus