Your guide to the Solar System and the night sky
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🌎  Greenwich, United Kingdom [change]

HR6478

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

HR6478 visual magnitude is 5.92. Because of its reltive faintness, HR6478 should be visible only from locations with dark skyes, while it is not visible at all from skyes affected by light pollution.

The table below summarizes the key facts about HR6478:

5.92
Bright giant
HR6478 is below the horizon from Greenwich, United Kingdom [change].

Celestial coordinates and finder chart of HR6478

HR6478 is situated south of the celestial equator, as such, it is more easily visible from the southern emisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR6478 are provided in the following table:

17h 27m 12s
-50° 37’ 49”
339.71°
-8.61°
Ara

The simplified sky map below shows the position of HR6478 in the sky:

Finder chart HR6478 star
Simplified finder chart for HR6478.

Visibility of HR6478 from your location

Location: Greenwich, United Kingdom [change]
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London

HR6478 is currently not visible from Greenwich, United Kingdom [change]

Digitized Sky Survey image of HR6478

The image below is a photograph of HR6478 from the Digitized Sky Survey 2 (DSS2 - see the credits section) taken in the red channel. The area of sky represented in the image is 0.5x0.5 degrees (30x30 arcmins). The proper motion of HR6478 is -0.007 arcsec per year in Right Ascension and -0.004 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.

Image of HR6478 star
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);

Distance of HR6478 from the Sun and relative movement

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.

512.82 pc
1,671.79 ly
11 km/s
-0.007 arcsec/year
-0.004 arcsec/year

Spectral properties of HR6478

HR6478 belongs to spectral class B9 and has a luminosity class of II corresponding to a bright giant star.

-2.63
B9II
9226K

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

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

HR6478 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:

5.92
10.62
4.7
76.1 arcsec

Alternative designations of HR6478

SAO244755
SAO244755