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A Complete Guide to the Solar System and the Night Sky
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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
SunriseRise: 6:59  
clear_day Transit: 12:12  
SunsetSet: 17:25
sleep NighttimeWhat's Visible Now?
All Constellations » Perseus » 

HR819

Altitude: -0.7°   Azimuth: 343.7°   Direction: North-North-West

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 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.

Image of HR819 star
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);

Key facts about HR819

6.25
Giant

HR819 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -0.7°
Azimuth: 343.7°
Direction: North-North-West

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:

02h 46m 58s
+35° 59’ 00”
147.73°
-21.26°
Perseus

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

Finder chart HR819 star
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°
Max altitude: 74.5°
Azimuth: 306.0°

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.

126.10 pc
411.10 ly
21 km/s
0.05 arcsec/year
-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.

0.75
G8III
4917K

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

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

Alternative designations of HR819

SAO55868
SAO55868