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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 » Sextans » 


Altitude: -28.8°   Azimuth: 29.4°   Direction: North-North-East

HR4079 is a double main-sequence star in the constellation of Sextans.

HR4079 visual magnitude is 6.54. Because of its reltive faintness, HR4079 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 HR4079:


HR4079 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -28.8°
Azimuth: 29.4°
Direction: North-North-East

Celestial coordinates and finder chart of HR4079

HR4079 is situated close to the celestial equator, as such, it is at least partly visible from both hemispheres in certain times of the year. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR4079 are provided in the following table:

10h 23m 14s
+05° 41’ 39”

The simplified sky map below shows the position of HR4079 in the sky:

Finder chart HR4079 star
Simplified finder chart for HR4079.

Visibility of HR4079 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 HR4079 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: 84.3°
Max altitude: 44.2°
Azimuth: 275.7°

Digitized Sky Survey image of HR4079

The image below is a photograph of HR4079 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 HR4079 is -0.241 arcsec per year in Right Ascension and -0.073 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

Image of HR4079 star
DSS2 image of HR4079. The red arrow shows the motion of HR4079 during the next 1000 years (-4.02 arcmin in Right Ascension and -1.22 arcmin in declination);

Distance of HR4079 from the Sun and relative movement

HR4079 is distant 181.51 light years from the Sun and it is moving far from the Sun at the speed of 30 kilometers per second.

55.68 pc
181.51 ly
30 km/s
-0.241 arcsec/year
-0.073 arcsec/year

Spectral properties of HR4079

HR4079 belongs to spectral class F6 and has a luminosity class of V corresponding to a main-sequence star.


The red dot in the diagram below shows where HR4079 is situated in the Hertzsprungā€“Russell diagram.

HR Diagram
H-R diagram showing the position of HR4079. Attribution: Richard Powell / CC BY-SA

HR4079 star system properties

HR4079 is a visual double star which can be observed with binoculars or small telescopes. The table below shows key information about the HR4079 double sysyem:

58.6 arcsec

Alternative designations of HR4079