HR4543

Above the horizon. Rise: 6:39 | Tran: 13:39 | Set: 20:40

Alt: 1.77° Az: 72.59° Direction: East-North-East

HR4543 is a double hypergiant star of spectral class F0 in the constellation of Leo.

HR4543 visual magnitude is 6.35. Because of its faintness, HR4543 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 HR4543. The red arrow shows the motion of HR4543 during the next 1000 years (-2.28 arcmin in Right Ascension and 0.38 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 11h 52m 11s

Declination +12° 08’ 29”

Hour Angle 17h 09m 14s

Sideral Time 05h 01m 26s

J2000

Right Ascension 11h 50m 55s

Declination +12° 16’ 44”

Galactic Coordinates

Galactic Longitude 256.3°

Galactic Latitude 69.47°

Finder Chart

Simplified finder chart for HR4543.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 6.35

Class Hypergiant

Absolute magnitude 2.64

Spectral Type F0IV

Color Index (B-V) 0.27

Temperature 7658K

The red dot in the diagram below shows where HR4543 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR4543. Attribution: Richard Powell / CC BY-SA

Star System Properties

HR4543 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 HR4543 double sysyem:

Main star magnitude 6.35

Secondary star magnitude 11.25

Magnitude difference 4.9

Separation 14.9 arcsec

Distance, Radial Speed, Proper Motion

HR4543 is distant 180.31 light years from the Sun and it is moving far from the Sun at the speed of 7 kilometers per second.

Distance (parsec) 55.31

Distance (light year) 180.31

Radial Speed 7 km/s

Proper Motion RA -0.137 arcsec/y

Proper Motion Dec 0.023"/y

Alternative Designations

Henry Draper Catalogue HD102910

SAO Catalogue SAO99827

Hipparcos Catalogue HIP57779

Durchmusterung Catalogue BD+13 2465

FK5 Catalogue 2946

Aitken Double Star Catalogue ADS8320

Visibility from Your Location

Today's HR4543 rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 77.9° RISE 6:39

Max altitude: 50.7° TRANSIT 13:39

Azimuth: 282.1° SET 20:40

Name:	Greenwich, UK
Latitude:	51° 28' 48.0" N
Longitude:	0° 0' 0.0" E
Timezone:	Europe/London

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Location

Other stars in Leo