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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: 7:40  
clear_day Transit: 11:47  
SunsetSet: 15:53 south
sleep NighttimeWhat's Visible Now?
All Constellations » Lyra » 


Altitude: 1.3°   Azimuth: 329.1°   Direction: North-North-West

HR6997 is a variable and double bright giant star in the constellation of Lyra.

HR6997 visual magnitude is 5.42. Because of its reltive faintness, HR6997 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 HR6997:

Bright giant

HR6997 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 1.3°
Azimuth: 329.1°
Direction: North-North-West

Celestial coordinates and finder chart of HR6997

HR6997 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 HR6997 are provided in the following table:

18h 36m 37s
+33° 28’ 08”

The simplified sky map below shows the position of HR6997 in the sky:

Finder chart HR6997 star
Simplified finder chart for HR6997.

Visibility of HR6997 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 HR6997 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: 56.5°
Max altitude: 72.0°
Azimuth: 303.5°

Digitized Sky Survey image of HR6997

The image below is a photograph of HR6997 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 HR6997 is -0.019 arcsec per year in Right Ascension and 0 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR6997 star
DSS2 image of HR6997. The red arrow shows the motion of HR6997 during the next 10000 years (-3.17 arcmin in Right Ascension and 0.00 arcmin in declination);

Distance of HR6997 from the Sun and relative movement

HR6997 is distant 521.60 light years from the Sun and it is moving towards the Sun at the speed of 26 kilometers per second.

160.00 pc
521.60 ly
-26 km/s
-0.019 arcsec/year

Spectral properties of HR6997

HR6997 belongs to spectral class B8 and has a luminosity class of II corresponding to a bright giant star. HR6997 is also a Hg chemically peculiar star.


The red dot in the diagram below shows where HR6997 is situated in the Hertzsprungā€“Russell diagram.

HR Diagram
H-R diagram showing the position of HR6997. Attribution: Richard Powell / CC BY-SA

HR6997 star system properties

HR6997 is a visual double star which can be observed with the help of small or medium telescopes. The table below shows key information about the HR6997 double sysyem:

7.3 arcsec

Alternative designations of HR6997