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A Complete Guide to the Solar System and the Night Sky
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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
SunriseRise: 6:35  
clear_day Transit: 12:10  
SunsetSet: 17:45
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All Constellations » Ara » 


Altitude: -10.6°   Azimuth: 162.4°   Direction: South-South-East

HR6416 is a multiple main-sequence star in the constellation of Ara.

HR6416 visual magnitude is 5.48. Because of its reltive faintness, HR6416 should be visible only from locations with dark skies, while it is not visible at all from skies affected by light pollution.

The proper motion of HR6416 is 0.979 arcsec per year in Right Ascension and 0.224 arcsec per year in Declination and the associated displacement for the next 100 years is represented with the red arrow.

Image of HR6416 star
DSS2 image of HR6416. The red arrow shows the motion of HR6416 during the next 100 years (1.63 arcmin in Right Ascension and 0.37 arcmin in declination);

Key facts about HR6416


HR6416 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -10.6°
Azimuth: 162.4°
Direction: South-South-East

Celestial coordinates and finder chart of HR6416

HR6416 is situated south of the celestial equator, as such, it is more easily visible from the southern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR6416 are provided in the following table:

17h 19m 03s
-46° 38’ 02”

The simplified sky map below shows the position of HR6416 in the sky:

Finder chart HR6416 star
Simplified finder chart for HR6416.

Visibility of HR6416 from your location

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

HR6416 is currently not visible from Greenwich, United Kingdom edit_location_alt

Distance of HR6416 from the Sun and relative movement

HR6416 is distant 28.64 light years from the Sun and it is moving far from the Sun at the speed of 23 kilometers per second.

8.79 pc
28.64 ly
23 km/s
0.979 arcsec/year
0.224 arcsec/year

Spectral properties of HR6416

HR6416 belongs to spectral class G8 and has a luminosity class of V corresponding to a main-sequence star.


The red dot in the diagram below shows where HR6416 is situated in the HertzsprungÔÇôRussell diagram.

HR Diagram
H-R diagram showing the position of HR6416. Attribution: Richard Powell / CC BY-SA

HR6416 star system properties

HR6416 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 HR6416 double sysyem:

7.5 arcsec

Alternative designations of HR6416

Gl 666 A