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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: 7:47  
clear_day Transit: 11:49  
SunsetSet: 15:50 south
sleep NighttimeWhat's Visible Now?
All Constellations » Hydra » 


Altitude: -68.4°   Azimuth: 33.4°   Direction: North-North-East

HR4339 is a variable main-sequence star in the constellation of Hydra.

HR4339 visual magnitude is 5.81. Because of its reltive faintness, HR4339 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 HR4339:


HR4339 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -68.4°
Azimuth: 33.4°
Direction: North-North-East

Celestial coordinates and finder chart of HR4339

HR4339 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 HR4339 are provided in the following table:

11h 09m 53s
-32° 22’ 02”

The simplified sky map below shows the position of HR4339 in the sky:

Finder chart HR4339 star
Simplified finder chart for HR4339.

Visibility of HR4339 from your location

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

Today's HR4339 rise, transit and set times from Greenwich, United Kingdom edit_location_alt are the following (all times relative to the local timezone Europe/London):

Azimuth: 122.4°
Max altitude: 6.2°
Azimuth: 237.6°

Digitized Sky Survey image of HR4339

The image below is a photograph of HR4339 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 HR4339 is 0.023 arcsec per year in Right Ascension and -0.029 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR4339 star
DSS2 image of HR4339. The red arrow shows the motion of HR4339 during the next 10000 years (3.83 arcmin in Right Ascension and -4.83 arcmin in declination);

Distance of HR4339 from the Sun and relative movement

HR4339 is distant 341.72 light years from the Sun

104.82 pc
341.72 ly
0.023 arcsec/year
-0.029 arcsec/year

Spectral properties of HR4339

HR4339 belongs to spectral class A2 and has a luminosity class of V corresponding to a main-sequence star.


The red dot in the diagram below shows where HR4339 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR4339. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR4339