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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 Civil TwilightWhat's Visible Now?
All Constellations » Carina » 


Altitude: -26.8°   Azimuth: 199.3°   Direction: South-South-West

HR4050 is a variable and multiple bright giant star in the constellation of Carina.

HR4050 visual magnitude is 3.4. Because of its moderate brightness, HR4050 should be easily visible from locations with dark skyes, while it can be barely visible, or not visible at all, from skyes affected by light pollution.

The table below summarizes the key facts about HR4050:

Bright giant

HR4050 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -26.8°
Azimuth: 199.3°
Direction: South-South-West

Celestial coordinates and finder chart of HR4050

HR4050 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 HR4050 are provided in the following table:

10h 17m 04s
-61° 19’ 55”

The simplified sky map below shows the position of HR4050 in the sky:

Finder chart HR4050 star
Simplified finder chart for HR4050.

Visibility of HR4050 from your location

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

HR4050 is currently not visible from Greenwich, United Kingdom edit_location_alt

Digitized Sky Survey image of HR4050

The image below is a photograph of HR4050 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 HR4050 is -0.024 arcsec per year in Right Ascension and 0.005 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR4050 star
DSS2 image of HR4050. The red arrow shows the motion of HR4050 during the next 10000 years (-4.00 arcmin in Right Ascension and 0.83 arcmin in declination);

Distance of HR4050 from the Sun and relative movement

HR4050 is distant 735.89 light years from the Sun and it is moving far from the Sun at the speed of 8 kilometers per second.

225.73 pc
735.89 ly
8 km/s
-0.024 arcsec/year
0.005 arcsec/year

Spectral properties of HR4050

HR4050 belongs to spectral class K3 and has a luminosity class of II corresponding to a bright giant star.


The red dot in the diagram below shows where HR4050 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR4050. Attribution: Richard Powell / CC BY-SA

HR4050 star system properties

HR4050 is a visual double star which can be observed only with the help of very large telescopes. The table below shows key information about the HR4050 double sysyem:

16.4 arcsec

Alternative designations of HR4050