HR7722

Below the horizon. Rise: 23:50 | Tran: 3:14 | Set: 6:34

Alt: -41.71° Az: 81.67° Direction: South

HR7722 is a variable hypergiant star of spectral class K0 in the constellation of Capricornus.

HR7722 visual magnitude is 5.73. Because of its faintness, HR7722 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 HR7722. The red arrow shows the motion of HR7722 during the next 100 years (2.07 arcmin in Right Ascension and -0.29 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 20h 16m 50s

Declination -26° 57’ 12”

Hour Angle 15h 43m 49s

Sidereal Time 12h 00m 39s

J2000

Right Ascension 20h 15m 17s

Declination -27° 01’ 58”

Galactic Coordinates

Galactic Longitude 15.62°

Galactic Latitude -29.38°

Finder Chart

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Finder chart for HR7722.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 5.73

Class Hypergiant

Absolute magnitude 6.00

Spectral Type K0V

Color Index (B-V) 0.88

Temperature 5051K

The red dot in the diagram below shows where HR7722 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR7722. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

HR7722 is distant 28.77 light years from the Sun and it is moving towards the Sun at the speed of 54 kilometers per second.

Distance (parsec) 8.82

Distance (light year) 28.77

Radial Speed -54 km/s

Proper Motion RA 1.244 arcsec/y

Proper Motion Dec -0.174"/y

Alternative Designations

Henry Draper Catalogue HD192310

SAO Catalogue SAO189065

Hipparcos Catalogue HIP99825

Durchmusterung Catalogue CD-2714659

Gliese Catalogue Gl 785

General Catalogue of Variable Stars 12933

Visibility from Your Location

Today's HR7722 rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 117.0° RISE 23:50

Max altitude: 11.6° TRANSIT 3:14

Azimuth: 243.0° SET 6:34

Set Location

Other stars in Capricornus