HR4428

Above the horizon. Rise: 16:49 | Tran: 20:28 | Set: 0:06

Alt: 12.60° Az: 195.04° Direction: South-South-West

HR4428 is a multiple hypergiant star of spectral class A0 in the constellation of Crater.

HR4428 visual magnitude is 5.76. Because of its faintness, HR4428 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 HR4428. The red arrow shows the motion of HR4428 during the next 10000 years (-8.00 arcmin in Right Ascension and 7.17 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 11h 30m 54s

Declination -24° 36’ 12”

Hour Angle 01h 04m 42s

Sidereal Time 12h 35m 36s

J2000

Right Ascension 11h 29m 38s

Declination -24° 27’ 47”

Galactic Coordinates

Galactic Longitude 280.16°

Galactic Latitude 34.77°

Finder Chart

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Finder chart for HR4428.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 5.76

Class Hypergiant

Absolute magnitude 0.30

Spectral Type A0V

Color Index (B-V) 0.07

Temperature 9328K

The red dot in the diagram below shows where HR4428 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR4428. Attribution: Richard Powell / CC BY-SA

Star System Properties

HR4428 is a visual double star which can be observed with the help of small or medium telescopes. The table below shows key information about the HR4428 double sysyem:

Main star magnitude 5.76

Secondary star magnitude 8.76

Magnitude difference 3

Separation 8.3 arcsec

Distance, Radial Speed, Proper Motion

HR4428 is distant 403.47 light years from the Sun and it is moving towards the Sun at the speed of 2 kilometers per second.

Distance (parsec) 123.76

Distance (light year) 403.47

Radial Speed -2 km/s

Proper Motion RA -0.048 arcsec/y

Proper Motion Dec 0.043"/y

Alternative Designations

Henry Draper Catalogue HD99922

SAO Catalogue SAO179935

Hipparcos Catalogue HIP56078

Durchmusterung Catalogue CD-2310009

Aitken Double Star Catalogue ADS8183

Visibility from Your Location

Today's HR4428 rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 114.6° RISE 16:49

Max altitude: 13.9° TRANSIT 20:28

Azimuth: 245.4° SET 0:06

Set Location

Other stars in Crater