HR7820

Below the horizon. Rise: 21:05 | Tran: 3:15 | Set: 9:24

Alt: -2.66° Az: 279.89° Direction: South-West

HR7820 is a giant star of spectral class G9 in the constellation of Delphinus.

HR7820 visual magnitude is 6.25. Because of its faintness, HR7820 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 HR7820. The red arrow shows the motion of HR7820 during the next 10000 years (7.17 arcmin in Right Ascension and 2.83 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 20h 29m 21s

Declination +08° 31’ 23”

Hour Angle 06h 22m 48s

Sidereal Time 02h 52m 09s

J2000

Right Ascension 20h 28m 07s

Declination +08° 26’ 14”

Galactic Coordinates

Galactic Longitude 52.19°

Galactic Latitude -17.07°

Finder Chart

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Finder chart for HR7820.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 6.25

Class Giant

Absolute magnitude 1.25

Spectral Type G9III

Color Index (B-V) 1.08

Temperature 4559K

The red dot in the diagram below shows where HR7820 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR7820. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

HR7820 is distant 326.33 light years from the Sun and it is moving towards the Sun at the speed of 11 kilometers per second.

Distance (parsec) 100.10

Distance (light year) 326.33

Radial Speed -11 km/s

Proper Motion RA 0.043 arcsec/y

Proper Motion Dec 0.017"/y

Alternative Designations

Henry Draper Catalogue HD194937

SAO Catalogue SAO125841

Hipparcos Catalogue HIP100953

Durchmusterung Catalogue BD+07 4477

FK5 Catalogue 3638

Visibility from Your Location

Today's HR7820 rise, transit and set times from Vicente Noble, Dominican Republic are the following (all times relative to the local timezone America/Santo_Domingo):

Azimuth: 81.5° RISE 21:05

Max altitude: 80.1° TRANSIT 3:15

Azimuth: 278.5° SET 9:24

Name:	Vicente Noble, Dominican Republic
Latitude:	18° 23' 3.8" N
Longitude:	71° 10' 48.4" W
Timezone:	America/Santo_Domingo

Set Location

Other stars in Delphinus