HR4549

Below the horizon. Never rises today

Alt: -61.08° Az: 138.05° Direction: South-East

HR4549 is a double main-sequence star of spectral class B4 in the constellation of Musca.

HR4549 visual magnitude is 4.9. Because of its moderate brightness, HR4549 is easily visible to the naked eye from locations with dark skies, while it might be barely visible, or not visible at all, from light-polluted skies.

DSS2 image of HR4549. The red arrow shows the motion of HR4549 during the next 10000 years (-6.50 arcmin in Right Ascension and -1.67 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 11h 53m 05s

Declination -65° 20’ 38”

Hour Angle 15h 23m 11s

Sideral Time 03h 16m 16s

J2000

Right Ascension 11h 51m 51s

Declination -65° 12’ 21”

Galactic Coordinates

Galactic Longitude 296.73°

Galactic Latitude -3.05°

Finder Chart

Simplified finder chart for HR4549.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 4.9

Class Main-sequence

Absolute magnitude -0.18

Spectral Type B4V

Color Index (B-V) -0.11

Temperature 11744K

The red dot in the diagram below shows where HR4549 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR4549. Attribution: Richard Powell / CC BY-SA

Star System Properties

HR4549 is a visual double star which can be observed with the help of medium or large telescopes. The table below shows key information about the HR4549 double sysyem:

Main star magnitude 4.9

Secondary star magnitude 7.1

Magnitude difference 2.2

Separation 1.8 arcsec

Distance, Radial Speed, Proper Motion

HR4549 is distant 338.17 light years from the Sun and it is moving far from the Sun at the speed of 21 kilometers per second.

Distance (parsec) 103.73

Distance (light year) 338.17

Radial Speed 21 km/s

Proper Motion RA -0.039 arcsec/y

Proper Motion Dec -0.01"/y

Alternative Designations

Henry Draper Catalogue HD103079

SAO Catalogue SAO251617

Hipparcos Catalogue HIP57851

Durchmusterung Catalogue CP-64 1724

Visibility from Your Location

HR4549 is currently not visible from Greenwich, UK

Set Location

Other stars in Musca