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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 » Carina » 


Altitude: -28.1°   Azimuth: 207.6°   Direction: South-South-West

HR4179 is a double giant star in the constellation of Carina.

HR4179 visual magnitude is 5.92. Because of its reltive faintness, HR4179 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 HR4179 is -0.086 arcsec per year in Right Ascension and 0.012 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR4179 star
DSS2 image of HR4179. The red arrow shows the motion of HR4179 during the next 10000 years (-14.33 arcmin in Right Ascension and 2.00 arcmin in declination);

Key facts about HR4179


HR4179 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -28.1°
Azimuth: 207.6°
Direction: South-South-West

Celestial coordinates and finder chart of HR4179

HR4179 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 HR4179 are provided in the following table:

10h 38m 59s
-58° 49’ 00”

The simplified sky map below shows the position of HR4179 in the sky:

Finder chart HR4179 star
Simplified finder chart for HR4179.

Visibility of HR4179 from your location

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

HR4179 is currently not visible from Greenwich, United Kingdom edit_location_alt

Distance of HR4179 from the Sun and relative movement

HR4179 is distant 648.11 light years from the Sun and it is moving far from the Sun at the speed of 81 kilometers per second.

198.81 pc
648.11 ly
81 km/s
-0.086 arcsec/year
0.012 arcsec/year

Spectral properties of HR4179

HR4179 belongs to spectral class M1 and has a luminosity class of III corresponding to a giant star.


The red dot in the diagram below shows where HR4179 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR4179. Attribution: Richard Powell / CC BY-SA

HR4179 star system properties

HR4179 is a visual double star which can be observed with binoculars or small telescopes. The table below shows key information about the HR4179 double sysyem:

23.5 arcsec

Alternative designations of HR4179