Your guide to the Solar System and the night sky
By donating now you help keep this site alive and free from ads. Please consider supporting this project.
🌎  Observing from: Greenwich, United Kingdom [change]
🌅 Sunrise: 6:34  ☀️ Transit: 13:02  🌅 Sunset: 19:31


HR6377 is a multiple giant star in the constellation of Hercules.

HR6377 visual magnitude is 5.39. Because of its reltive faintness, HR6377 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 HR6377:

HR6377 is above the horizon from Greenwich, United Kingdom [change]. Altitude: 45°.

Celestial coordinates and finder chart of HR6377

HR6377 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 HR6377 are provided in the following table:

17h 08m 02s
+35° 56’ 07”

The simplified sky map below shows the position of HR6377 in the sky:

Finder chart HR6377 star
Simplified finder chart for HR6377.

Visibility of HR6377 from your location

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

Today's HR6377 rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 54.1°
Max altitude: 74.5°
Azimuth: 305.9°
HR6377 is above the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR6377

The image below is a photograph of HR6377 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 HR6377 is -0.024 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 HR6377 star
DSS2 image of HR6377. The red arrow shows the motion of HR6377 during the next 10000 years (-4.00 arcmin in Right Ascension and -1.67 arcmin in declination);

Distance of HR6377 from the Sun and relative movement

HR6377 is distant 175.74 light years from the Sun and it is moving towards the Sun at the speed of 30 kilometers per second.

53.91 pc
175.74 ly
-30 km/s
-0.024 arcsec/year
-0.01 arcsec/year

Spectral properties of HR6377

HR6377 belongs to spectral class A5 and has a luminosity class of III corresponding to a giant star.


The red dot in the diagram below shows where HR6377 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR6377. Attribution: Richard Powell / CC BY-SA

HR6377 star system properties

HR6377 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 HR6377 double sysyem:

0.1 arcsec

Alternative designations of HR6377