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public LocationGreenwich, UK
Sunrise: 4:42 
Transit: 13:00 
Sunset: 21:17
sunny   (Daytime)   What's Visible Now?


Below the horizon.  Rise: 22:41 | Tran: 0:21 | Set: 2:06
Altitude: -29.9°   Azimuth: 111.1°   Direction: East-South-East

HR6405 is a double hypergiant star of spectral class G0 in the constellation of Scorpius.

HR6405 visual magnitude is 6.12. Because of its faintness, HR6405 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 HR6405

Finder chart HR6405 star
Simplified finder chart for HR6405.

HR6405 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 HR6405 are provided in the following table:

17h 16m 21s
-35° 44’ 57”
Image of HR6405 star
DSS2 image of HR6405. The red arrow shows the motion of HR6405 during the next 1000 years (-1.97 arcmin in Right Ascension and -5.32 arcmin in declination);

Key facts about HR6405


and has a luminosity class of IV corresponding to a hypergiant star.


The red dot in the diagram below shows where HR6405 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR6405. Attribution: Richard Powell / CC BY-SA

HR6405 star system properties

HR6405 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 HR6405 double sysyem:

36.5 arcsec

Distance of HR6405 from the Sun and relative movement

HR6405 is distant 105.06 light years from the Sun and it is moving towards the Sun at the speed of 1 kilometers per second.

32.23 pc
105.06 ly
-1 km/s
-0.118 arcsec/year
-0.319 arcsec/year

Alternative designations of HR6405


Visibility of HR6405 from your location

Today's HR6405 rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 125.7°
Max altitude: 2.8°
Azimuth: 234.3°