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public LocationGreenwich, United Kingdom
Sunrise: 4:42 
Transit: 12:59 
Sunset: 21:16
sunny   (Daytime)   What's Visible Now?


Below the horizon.  Never rises today
Altitude: -82.9°   Azimuth: 203.0°   Direction: South-South-West

HR4091 is a variable giant star of spectral class K4 in the constellation of Carina.

HR4091 visual magnitude is 6.35. Because of its faintness, HR4091 is visible to the naked eye only from locations with very dark skies, while it is not visible at all from skies affected by light pollution.

Celestial coordinates and finder chart of HR4091

Finder chart HR4091 star
Simplified finder chart for HR4091.

HR4091 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 HR4091 are provided in the following table:

10h 23m 50s
-57° 57’ 14”
Image of HR4091 star
DSS2 image of HR4091. The red arrow shows the motion of HR4091 during the next 100000 years (-1.67 arcmin in Right Ascension and -10.00 arcmin in declination);

Key facts about HR4091


and has a luminosity class of III corresponding to a giant star.


The red dot in the diagram below shows where HR4091 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR4091. Attribution: Richard Powell / CC BY-SA

Distance of HR4091 from the Sun and relative movement

HR4091 is distant 793.19 light years from the Sun and it is moving towards the Sun at the speed of 13 kilometers per second.

243.31 pc
793.19 ly
-13 km/s
-0.001 arcsec/year
-0.006 arcsec/year

Alternative designations of HR4091


Visibility of HR4091 from your location

HR4091 is currently not visible from Greenwich, United Kingdom