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A Complete Guide to the Solar System and the Night Sky
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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 7:49  
clear_day Transit: 11:49  
SunsetSet: 15:50 south
wb_twilight Civil TwilightWhat's Visible Now?
All Constellations » Ophiuchus » 


Altitude: 4.8°   Azimuth: 105.8°   Direction: East-South-East

HR6512 is a variable and double hypergiant star in the constellation of Ophiuchus.

HR6512 visual magnitude is 6.37. Because of its reltive faintness, HR6512 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 HR6512:


HR6512 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 4.8°
Azimuth: 105.8°
Direction: East-South-East

Celestial coordinates and finder chart of HR6512

HR6512 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 HR6512 are provided in the following table:

17h 29m 47s
-05° 55’ 10”

The simplified sky map below shows the position of HR6512 in the sky:

Finder chart HR6512 star
Simplified finder chart for HR6512.

Visibility of HR6512 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 HR6512 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: 95.9°
Max altitude: 32.6°
Azimuth: 264.1°

Digitized Sky Survey image of HR6512

The image below is a photograph of HR6512 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 HR6512 is -0.022 arcsec per year in Right Ascension and -0.073 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR6512 star
DSS2 image of HR6512. The red arrow shows the motion of HR6512 during the next 10000 years (-3.67 arcmin in Right Ascension and -12.17 arcmin in declination);

Distance of HR6512 from the Sun and relative movement

HR6512 is distant 234.87 light years from the Sun and it is moving far from the Sun at the speed of 4 kilometers per second.

72.05 pc
234.87 ly
4 km/s
-0.022 arcsec/year
-0.073 arcsec/year

Spectral properties of HR6512

HR6512 belongs to spectral class K0 and has a luminosity class of III corresponding to a hypergiant star.


The red dot in the diagram below shows where HR6512 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR6512. Attribution: Richard Powell / CC BY-SA

HR6512 star system properties

HR6512 is a visual double star which can be observed with the help of large telescopes. The table below shows key information about the HR6512 double sysyem:

1.3 arcsec

Alternative designations of HR6512