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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
north SunriseRise: 7:51  
clear_day Transit: 11:50  
SunsetSet: 15:49 south
wb_twilight Astronomical TwilightWhat's Visible Now?
All Constellations » Triangulum Australe » 


Altitude: -48.3°   Azimuth: 220.9°   Direction: South-West

HR5939 is a variable bright giant star in the constellation of Triangulum Australe.

HR5939 visual magnitude is 6.41. Because of its reltive faintness, HR5939 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 HR5939:

Bright giant

HR5939 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -48.3°
Azimuth: 220.9°
Direction: South-West

Celestial coordinates and finder chart of HR5939

HR5939 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 HR5939 are provided in the following table:

16h 01m 10s
-63° 46’ 36”
Triangulum Australe

The simplified sky map below shows the position of HR5939 in the sky:

Finder chart HR5939 star
Simplified finder chart for HR5939.

Visibility of HR5939 from your location

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

HR5939 is currently not visible from Greenwich, United Kingdom edit_location_alt

Digitized Sky Survey image of HR5939

The image below is a photograph of HR5939 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 HR5939 is -0.009 arcsec per year in Right Ascension and -0.003 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.

Image of HR5939 star
DSS2 image of HR5939. The red arrow shows the motion of HR5939 during the next 100000 years (-15.00 arcmin in Right Ascension and -5.00 arcmin in declination);

Distance of HR5939 from the Sun and relative movement

HR5939 is distant 2,050.31 light years from the Sun and it is moving far from the Sun at the speed of 5 kilometers per second.

628.93 pc
2,050.31 ly
5 km/s
-0.009 arcsec/year
-0.003 arcsec/year

Spectral properties of HR5939

HR5939 belongs to spectral class F8 and has a luminosity class of II corresponding to a bright giant star.


The red dot in the diagram below shows where HR5939 is situated in the HertzsprungÔÇôRussell diagram.

HR Diagram
H-R diagram showing the position of HR5939. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR5939