HR8389

HR8389 is a hypergiant star in the constellation of Cepheus.

HR8389 visual magnitude is 6.59. Because of its reltive faintness, HR8389 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 HR8389:

Color of HR8389 ⬤

Magnitude of HR8389 6.59

Class Hypergiant

VISIBILITY RIGHT NOW HR8389 is above the horizon from Greenwich, United Kingdom [change]. Altitude: 61°.

Celestial coordinates and finder chart of HR8389

HR8389 is situated north of the celestial equator, as such, it is more easily visible from the northern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR8389 are provided in the following table:

Right Ascension J2000 21h 59m 22s

Declination J2000 +57° 39’ 29”

Galactic Longitude 101.51°

Galactic Latitude 2.13°

Constellation Cepheus

The simplified sky map below shows the position of HR8389 in the sky:

Simplified finder chart for HR8389.

Visibility of HR8389 from your location

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

HR8389 is circumpolar and transits at 09:37 UTC (altitude: 83.8°)

Digitized Sky Survey image of HR8389

The image below is a photograph of HR8389 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 HR8389 is 0.004 arcsec per year in Right Ascension and -0.015 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of HR8389. The red arrow shows the motion of HR8389 during the next 10000 years (0.67 arcmin in Right Ascension and -2.50 arcmin in declination);

Distance of HR8389 from the Sun and relative movement

HR8389 is distant 639.22 light years from the Sun and it is moving towards the Sun at the speed of 3 kilometers per second.

Distance (parsec) 196.08 pc

Distance (light year) 639.22 ly

Heliocentric radial velocity -3 km/s

Proper Motion RA 0.004 arcsec/year

Proper Motion Dec -0.015 arcsec/year

Spectral properties of HR8389

HR8389 belongs to spectral class A0 and has a luminosity class of III corresponding to a hypergiant star.

Absolute magnitude 0.13

Spectral Type A0III

Color Index (B-V) 0.03

Temperature of HR8389 9766K

The red dot in the diagram below shows where HR8389 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR8389. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR8389

Henry Draper Catalogue HD209124

SAO Catalogue SAO33943

Hipparcos Catalogue HIP108553

Durchmusterung Catalogue BD+56 2670

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In Evidence

Other stars in Cepheus