HR1398

Altitude: -49.9° Azimuth: 274.0° Direction: West

HR1398 is a multiple giant star in the constellation of Eridanus.

HR1398 visual magnitude is 6.55. Because of its reltive faintness, HR1398 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 HR1398:

Color of HR1398 ⬤

Magnitude of HR1398 6.55

Class Giant

VISIBILITY RIGHT NOW

HR1398 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -49.9°
Azimuth: 274.0°
Direction: West

Celestial coordinates and finder chart of HR1398

HR1398 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 HR1398 are provided in the following table:

Right Ascension J2000 04h 24m 56s

Declination J2000 -34° 45’ 28”

Galactic Longitude 236.23°

Galactic Latitude -44.12°

Constellation Eridanus

The simplified sky map below shows the position of HR1398 in the sky:

Simplified finder chart for HR1398.

Visibility of HR1398 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 HR1398 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: 124.8° RISE 21:22

Max altitude: 3.8° TRANSIT 23:19

Azimuth: 235.2° SET 1:19

Digitized Sky Survey image of HR1398

The image below is a photograph of HR1398 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 HR1398 is -0.013 arcsec per year in Right Ascension and -0.11 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

DSS2 image of HR1398. The red arrow shows the motion of HR1398 during the next 1000 years (-0.22 arcmin in Right Ascension and -1.83 arcmin in declination);

Distance of HR1398 from the Sun and relative movement

HR1398 is distant 273.03 light years from the Sun and it is moving far from the Sun at the speed of 7 kilometers per second.

Distance (parsec) 83.75 pc

Distance (light year) 273.03 ly

Heliocentric radial velocity 7 km/s

Proper Motion RA -0.013 arcsec/year

Proper Motion Dec -0.11 arcsec/year

Spectral properties of HR1398

HR1398 belongs to spectral class F2 and has a luminosity class of III corresponding to a giant star.

Absolute magnitude 1.94

Spectral Type F2III

Color Index (B-V) 0.44

Temperature of HR1398 6674K

The red dot in the diagram below shows where HR1398 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR1398. Attribution: Richard Powell / CC BY-SA

HR1398 star system properties

HR1398 is a visual double star which can be observed with binoculars or small telescopes. The table below shows key information about the HR1398 double sysyem:

Main star magnitude 6.55

Secondary star magnitude 9.95

Magnitude difference 3.4

Separation 39.5 arcsec

Alternative designations of HR1398

Henry Draper Catalogue HD28143

SAO Catalogue SAO194996

Hipparcos Catalogue HIP20613

Durchmusterung Catalogue CD-35 1704

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In Evidence

Other stars in Eridanus