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: 4:48  
clear_day Transit: 12:56  
SunsetSet: 21:05 south
wb_twilight Astronomical TwilightWhat's Visible Now
All Constellations » Hercules » 


HR6388 is a giant star in the constellation of Hercules.

HR6388 visual magnitude is 5.08. Because of its reltive faintness, HR6388 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 HR6388:

HR6388 is above the horizon from Greenwich, United Kingdom edit_location_alt. Altitude: 72°.

Celestial coordinates and finder chart of HR6388

HR6388 is situated north of the celestial equator, as such, it is more easily visible from the northern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR6388 are provided in the following table:

17h 09m 33s
+40° 46’ 37”

The simplified sky map below shows the position of HR6388 in the sky:

Finder chart HR6388 star
Simplified finder chart for HR6388.

Visibility of HR6388 from your location

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

HR6388 is circumpolar and transits at 00:28 UTC (altitude: 79.3°)

Digitized Sky Survey image of HR6388

The image below is a photograph of HR6388 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 HR6388 is -0.042 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 HR6388 star
DSS2 image of HR6388. The red arrow shows the motion of HR6388 during the next 10000 years (-7.00 arcmin in Right Ascension and 2.00 arcmin in declination);

Distance of HR6388 from the Sun and relative movement

HR6388 is distant 277.92 light years from the Sun and it is moving towards the Sun at the speed of 56 kilometers per second.

85.25 pc
277.92 ly
-56 km/s
-0.042 arcsec/year
0.012 arcsec/year

Spectral properties of HR6388

HR6388 belongs to spectral class K3 and has a luminosity class of III corresponding to a giant star.


The red dot in the diagram below shows where HR6388 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR6388. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR6388