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
sunny DaytimeWhat's Visible Now
All Constellations » Serpens » 


HR6544 is a double main-sequence star in the constellation of Serpens.

HR6544 visual magnitude is 5.55. Because of its reltive faintness, HR6544 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 HR6544:

HR6544 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Celestial coordinates and finder chart of HR6544

HR6544 is situated close to the celestial equator, as such, it is at least partly visible from both hemispheres in certain times of the year. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR6544 are provided in the following table:

17h 34m 46s
-11° 14’ 30”

The simplified sky map below shows the position of HR6544 in the sky:

Finder chart HR6544 star
Simplified finder chart for HR6544.

Visibility of HR6544 from your location

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

Today's HR6544 rise, transit and set times from Greenwich, United Kingdom edit_location_alt are the following (all times relative to the local timezone Europe/London):

Azimuth: 101.2°
Max altitude: 27.3°
Azimuth: 258.8°
HR6544 is below the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR6544

The image below is a photograph of HR6544 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 HR6544 is 0.005 arcsec per year in Right Ascension and 0.006 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.

Image of HR6544 star
DSS2 image of HR6544. The red arrow shows the motion of HR6544 during the next 100000 years (8.33 arcmin in Right Ascension and 10.00 arcmin in declination);

Distance of HR6544 from the Sun and relative movement

HR6544 is distant 376.88 light years from the Sun and it is moving towards the Sun at the speed of 11 kilometers per second.

115.61 pc
376.88 ly
-11 km/s
0.005 arcsec/year
0.006 arcsec/year

Spectral properties of HR6544

HR6544 belongs to spectral class B8 and has a luminosity class of V corresponding to a main-sequence star.


The red dot in the diagram below shows where HR6544 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR6544. Attribution: Richard Powell / CC BY-SA

HR6544 star system properties

HR6544 is a visual double star which can be observed with binoculars or small telescopes. The table below shows key information about the HR6544 double sysyem:

54.6 arcsec

Alternative designations of HR6544