HR8434

Altitude: 18.1° Azimuth: 5.2° Direction: North

HR8434 is a hypergiant star in the constellation of Cepheus.

HR8434 visual magnitude is 6.39. Because of its reltive faintness, HR8434 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 HR8434:

Color of HR8434 ⬤

Magnitude of HR8434 6.39

Class Hypergiant

VISIBILITY RIGHT NOW

HR8434 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 18.1°
Azimuth: 5.2°
Direction: North

Celestial coordinates and finder chart of HR8434

HR8434 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 HR8434 are provided in the following table:

Right Ascension J2000 22h 06m 13s

Declination J2000 +56° 20’ 35”

Galactic Longitude 101.47°

Galactic Latitude 0.52°

Constellation Cepheus

The simplified sky map below shows the position of HR8434 in the sky:

Simplified finder chart for HR8434.

Visibility of HR8434 from your location

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

HR8434 is circumpolar and transits at 05:16 UTC (altitude: 85.1°)

Digitized Sky Survey image of HR8434

The image below is a photograph of HR8434 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 HR8434 is 0.014 arcsec per year in Right Ascension and -0.011 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of HR8434. The red arrow shows the motion of HR8434 during the next 10000 years (2.33 arcmin in Right Ascension and -1.83 arcmin in declination);

Distance of HR8434 from the Sun and relative movement

HR8434 is distant 575.97 light years from the Sun and it is moving towards the Sun at the speed of 20 kilometers per second.

Distance (parsec) 176.68 pc

Distance (light year) 575.97 ly

Heliocentric radial velocity -20 km/s

Proper Motion RA 0.014 arcsec/year

Proper Motion Dec -0.011 arcsec/year

Spectral properties of HR8434

HR8434 belongs to spectral class A0 and has a luminosity class of III corresponding to a hypergiant star.

Absolute magnitude 0.15

Spectral Type A0III

Color Index (B-V) -0.1

Temperature of HR8434 11573K

The red dot in the diagram below shows where HR8434 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR8434. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR8434

Henry Draper Catalogue HD210071

SAO Catalogue SAO34055

Hipparcos Catalogue HIP109124

Durchmusterung Catalogue BD+55 2679

In Evidence

Other stars in Cepheus