HR819

HR819 is a giant star in the constellation of Perseus.

HR819 visual magnitude is 6.25. Because of its reltive faintness, HR819 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 HR819:

Color of HR819 ⬤

Magnitude of HR819 6.25

Class Giant

VISIBILITY RIGHT NOW HR819 is above the horizon from Greenwich, United Kingdom edit_location_alt. Altitude: 14°.

Celestial coordinates and finder chart of HR819

HR819 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 HR819 are provided in the following table:

Right Ascension J2000 02h 46m 58s

Declination J2000 +35° 59’ 00”

Galactic Longitude 147.73°

Galactic Latitude -21.26°

Constellation Perseus

The simplified sky map below shows the position of HR819 in the sky:

Simplified finder chart for HR819.

Visibility of HR819 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 HR819 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: 54.0° RISE 0:36

Max altitude: 74.5° TRANSIT 11:00

Azimuth: 306.0° SET 21:20

RIGHT NOW HR819 is above the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR819

The image below is a photograph of HR819 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 HR819 is 0.05 arcsec per year in Right Ascension and -0.005 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of HR819. The red arrow shows the motion of HR819 during the next 10000 years (8.33 arcmin in Right Ascension and -0.83 arcmin in declination);

Distance of HR819 from the Sun and relative movement

HR819 is distant 411.10 light years from the Sun and it is moving far from the Sun at the speed of 21 kilometers per second.

Distance (parsec) 126.10 pc

Distance (light year) 411.10 ly

Heliocentric radial velocity 21 km/s

Proper Motion RA 0.05 arcsec/year

Proper Motion Dec -0.005 arcsec/year

Spectral properties of HR819

HR819 belongs to spectral class G8 and has a luminosity class of III corresponding to a giant star.

Absolute magnitude 0.75

Spectral Type G8III

Color Index (B-V) 0.93

Temperature of HR819 4917K

The red dot in the diagram below shows where HR819 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR819. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR819

Henry Draper Catalogue HD17228

SAO Catalogue SAO55868

Hipparcos Catalogue HIP12982

Durchmusterung Catalogue BD+35 553

In Evidence

Other stars in Perseus