Your Guide to the Solar System and the Night Sky
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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 6:54  
clear_day Transit: 12:49  
SunsetSet: 18:43 south
sunny DaytimeWhat's Visible Now
All Constellations » Carina » 


Altitude: -44.4°   Azimuth: 210.3°   Direction: South-South-West

HR4002 is a multiple hypergiant star in the constellation of Carina.

HR4002 visual magnitude is 5.81. Because of its reltive faintness, HR4002 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 HR4002:


HR4002 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -44.4°
Azimuth: 210.3°
Direction: South-South-West

Celestial coordinates and finder chart of HR4002

HR4002 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 HR4002 are provided in the following table:

10h 09m 30s
-68° 40’ 59”

The simplified sky map below shows the position of HR4002 in the sky:

Finder chart HR4002 star
Simplified finder chart for HR4002.

Visibility of HR4002 from your location

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

HR4002 is currently not visible from Greenwich, United Kingdom edit_location_alt

Digitized Sky Survey image of HR4002

The image below is a photograph of HR4002 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 HR4002 is -0.008 arcsec per year in Right Ascension and 0.01 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR4002 star
DSS2 image of HR4002. The red arrow shows the motion of HR4002 during the next 10000 years (-1.33 arcmin in Right Ascension and 1.67 arcmin in declination);

Distance of HR4002 from the Sun and relative movement

HR4002 is distant 583.18 light years from the Sun and it is moving far from the Sun at the speed of 10 kilometers per second.

178.89 pc
583.18 ly
10 km/s
-0.008 arcsec/year
0.01 arcsec/year

Spectral properties of HR4002

HR4002 belongs to spectral class A0 and has a luminosity class of IV corresponding to a hypergiant star.


The red dot in the diagram below shows where HR4002 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR4002. Attribution: Richard Powell / CC BY-SA

HR4002 star system properties

HR4002 is a visual double star which can be observed with the help of large telescopes. The table below shows key information about the HR4002 double sysyem:

0.8 arcsec

Alternative designations of HR4002