HR7816

Above the horizon. Rise: 12:45 | Tran: 20:15 | Set: 3:50

Alt: 52.47° Az: 147.91° Direction: South-South-East

HR7816 is a hypergiant star of spectral class K0 in the constellation of Delphinus.

HR7816 visual magnitude is 6.22. Because of its faintness, HR7816 is visible to the naked eye only from locations with very dark skies, while it is not visible at all from skies affected by light pollution.

DSS2 image of HR7816. The red arrow shows the motion of HR7816 during the next 100000 years (13.33 arcmin in Right Ascension and -10.00 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 20h 27m 31s

Declination +17° 23’ 52”

Hour Angle 22h 40m 42s

Sideral Time 19h 08m 13s

J2000

Right Ascension 20h 26m 23s

Declination +17° 18’ 56”

Galactic Coordinates

Galactic Longitude 59.66°

Galactic Latitude -11.91°

Finder Chart

Simplified finder chart for HR7816.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 6.22

Class Hypergiant

Absolute magnitude -0.76

Spectral Type K0

Color Index (B-V) 1.01

Temperature 4719K

The red dot in the diagram below shows where HR7816 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR7816. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

HR7816 is distant 812.97 light years from the Sun and it is moving towards the Sun at the speed of 17 kilometers per second.

Distance (parsec) 249.38

Distance (light year) 812.97

Radial Speed -17 km/s

Proper Motion RA 0.008 arcsec/y

Proper Motion Dec -0.006"/y

Alternative Designations

Henry Draper Catalogue HD194688

SAO Catalogue SAO106101

Hipparcos Catalogue HIP100807

Durchmusterung Catalogue BD+16 4259

FK5 Catalogue 3635

Visibility from Your Location

Today's HR7816 rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 72.6° RISE 12:45

Max altitude: 55.9° TRANSIT 20:15

Azimuth: 287.4° SET 3:50

Set Location

Other stars in Delphinus