HR4821

Above the horizon. Rise: 14:43 | Tran: 19:33 | Set: 0:24

Alt: 8.59° Az: 124.01° Direction: South-West

HR4821 is a variable and multiple main-sequence star of spectral class F3 in the constellation of Corvus.

HR4821 visual magnitude is 6.08. Because of its faintness, HR4821 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 HR4821. The red arrow shows the motion of HR4821 during the next 1000 years (-1.88 arcmin in Right Ascension and 0.32 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 12h 42m 35s

Declination -13° 09’ 11”

Hour Angle 20h 10m 41s

Sidereal Time 08h 53m 17s

J2000

Right Ascension 12h 41m 16s

Declination -13° 00’ 48”

Galactic Coordinates

Galactic Longitude 299.1°

Galactic Latitude 49.78°

Finder Chart

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Finder chart for HR4821.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 6.08

Class Main-sequence

Absolute magnitude 1.42

Spectral Type F3V

Color Index (B-V)

Temperature 10125K

The red dot in the diagram below shows where HR4821 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR4821. Attribution: Richard Powell / CC BY-SA

Star System Properties

HR4821 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 HR4821 double sysyem:

Main star magnitude 6.08

Secondary star magnitude 6.18

Magnitude difference 0.1

Separation 5.4 arcsec

Distance, Radial Speed, Proper Motion

HR4821 is distant 278.16 light years from the Sun and it is moving towards the Sun at the speed of 14 kilometers per second.

Distance (parsec) 85.32

Distance (light year) 278.16

Radial Speed -14 km/s

Proper Motion RA -0.113 arcsec/y

Proper Motion Dec 0.019"/y

Alternative Designations

Henry Draper Catalogue HD110317

SAO Catalogue SAO157447

Hipparcos Catalogue HIP61910

Durchmusterung Catalogue BD-12 3676

General Catalogue of Variable Stars 5855

Aitken Double Star Catalogue ADS8627

Visibility from Your Location

Today's HR4821 rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 103.2° RISE 14:43

Max altitude: 25.4° TRANSIT 19:33

Azimuth: 256.8° SET 0:24

Set Location

Other stars in Corvus