HR6478

Below the horizon. Never rises today

Alt: -85.94° Az: 80.67° Direction: East

HR6478 is a multiple bright giant star of spectral class B9 in the constellation of Ara.

HR6478 visual magnitude is 5.92. Because of its faintness, HR6478 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 HR6478. The red arrow shows the motion of HR6478 during the next 100000 years (-11.67 arcmin in Right Ascension and -6.67 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 17h 29m 08s

Declination -50° 38’ 57”

Hour Angle 12h 25m 17s

Sideral Time 05h 54m 26s

J2000

Right Ascension 17h 27m 12s

Declination -50° 37’ 49”

Galactic Coordinates

Galactic Longitude 339.71°

Galactic Latitude -8.61°

Finder Chart

Simplified finder chart for HR6478.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 5.92

Class Bright giant

Absolute magnitude -2.63

Spectral Type B9II

Color Index (B-V) 0.08

Temperature 9226K

The red dot in the diagram below shows where HR6478 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR6478. Attribution: Richard Powell / CC BY-SA

Star System Properties

HR6478 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 HR6478 double sysyem:

Main star magnitude 5.92

Secondary star magnitude 10.62

Magnitude difference 4.7

Separation 76.1 arcsec

Distance, Radial Speed, Proper Motion

HR6478 is distant 1,671.79 light years from the Sun and it is moving far from the Sun at the speed of 11 kilometers per second.

Distance (parsec) 512.82

Distance (light year) 1,671.79

Radial Speed 11 km/s

Proper Motion RA -0.007 arcsec/y

Proper Motion Dec -0.004"/y

Alternative Designations

Henry Draper Catalogue HD157662

SAO Catalogue SAO244755

Hipparcos Catalogue HIP85409

Durchmusterung Catalogue CD-5011283

Visibility from Your Location

HR6478 is currently not visible from Greenwich, UK

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

Location

Other stars in Ara