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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: 7:54  
clear_day Transit: 11:51  
SunsetSet: 15:49 south
sunny DaytimeWhat's Visible Now?
All Constellations » Aquila » 


Altitude: 51.3°   Azimuth: 151.9°   Direction: South-South-East

HR7680 is a double giant star in the constellation of Aquila.

HR7680 visual magnitude is 6.34. Because of its reltive faintness, HR7680 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 HR7680:


HR7680 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 51.3°
Azimuth: 151.9°
Direction: South-South-East

Celestial coordinates and finder chart of HR7680

HR7680 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 HR7680 are provided in the following table:

20h 05m 26s
+15° 30’ 01”

The simplified sky map below shows the position of HR7680 in the sky:

Finder chart HR7680 star
Simplified finder chart for HR7680.

Visibility of HR7680 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 HR7680 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: 74.5°
Max altitude: 54.0°
Azimuth: 285.5°

Digitized Sky Survey image of HR7680

The image below is a photograph of HR7680 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 HR7680 is 0.033 arcsec per year in Right Ascension and 0.02 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR7680 star
DSS2 image of HR7680. The red arrow shows the motion of HR7680 during the next 10000 years (5.50 arcmin in Right Ascension and 3.33 arcmin in declination);

Distance of HR7680 from the Sun and relative movement

HR7680 is distant 749.43 light years from the Sun and it is moving towards the Sun at the speed of 112 kilometers per second.

229.89 pc
749.43 ly
-112 km/s
0.033 arcsec/year
0.02 arcsec/year

Spectral properties of HR7680

HR7680 belongs to spectral class M2 and has a luminosity class of III corresponding to a giant star.


The red dot in the diagram below shows where HR7680 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR7680. Attribution: Richard Powell / CC BY-SA

HR7680 star system properties

HR7680 is a visual double star which can be observed with the help of medium or large telescopes. The table below shows key information about the HR7680 double sysyem:

2.7 arcsec

Alternative designations of HR7680