46 Eridani

Altitude: -25.7° Azimuth: 293.3° Direction: West-North-West

46 Eridani is a variable and double star in the constellation of Eridanus.

46 Eridani visual magnitude is 5.72. Because of its reltive faintness, 46 Eridani 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 46 Eridani:

Color of 46 Eridani ⬤

Magnitude of 46 Eridani 5.72

Class

VISIBILITY RIGHT NOW

46 Eridani is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -25.7°
Azimuth: 293.3°
Direction: West-North-West

Celestial coordinates and finder chart of 46 Eridani

46 Eridani 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 46 Eridani are provided in the following table:

Right Ascension J2000 04h 33m 54s

Declination J2000 -06° 44’ 20”

Galactic Longitude 202.47°

Galactic Latitude -33.55°

Constellation Eridanus

The simplified sky map below shows the position of 46 Eridani in the sky:

Simplified finder chart for 46 Eridani.

Visibility of 46 Eridani 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 46 Eridani 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: 96.7° RISE 17:56

Max altitude: 31.8° TRANSIT 23:20

Azimuth: 263.3° SET 4:48

Digitized Sky Survey image of 46 Eridani

The image below is a photograph of 46 Eridani 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 46 Eridani is 0 arcsec per year in Right Ascension and -0.007 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.

DSS2 image of 46 Eridani. The red arrow shows the motion of 46 Eridani during the next 100000 years (0.00 arcmin in Right Ascension and -11.67 arcmin in declination);

Distance of 46 Eridani from the Sun and relative movement

46 Eridani is distant 779.90 light years from the Sun and it is moving far from the Sun at the speed of 2 kilometers per second.

Distance (parsec) 239.23 pc

Distance (light year) 779.90 ly

Heliocentric radial velocity 2 km/s

Proper Motion Dec -0.007 arcsec/year

Spectral properties of 46 Eridani

46 Eridani belongs to spectral class B9 46 Eridani is also a Si chemically peculiar star.

Absolute magnitude -1.17

Spectral Type B9

Color Index (B-V) -0.13

Temperature of 46 Eridani 12103K

The red dot in the diagram below shows where 46 Eridani is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of 46 Eridani. Attribution: Richard Powell / CC BY-SA

46 Eridani star system properties

46 Eridani is a visual double star which can be observed with the help of large telescopes. The table below shows key information about the 46 Eridani double sysyem:

Main star magnitude 5.72

Secondary star magnitude 10.52

Magnitude difference 4.8

Separation 1.2 arcsec

Alternative designations of 46 Eridani

Flamsteed designation 46 Eridani

Henry Draper Catalogue HD29009

SAO Catalogue SAO131309

Hipparcos Catalogue HIP21278

Durchmusterung Catalogue BD-07 838

General Catalogue of Variable Stars EH Eri

Aitken Double Star Catalogue ADS3305

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In Evidence

Other stars in Eridanus