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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: 7:52  
clear_day Transit: 11:51  
SunsetSet: 15:49 south
wb_twilight Civil TwilightWhat's Visible Now?
All Constellations » Aquila » 


Altitude: -12.6°   Azimuth: 64.2°   Direction: East-North-East

HR7794 is a giant star in the constellation of Aquila.

HR7794 visual magnitude is 5.31. Because of its reltive faintness, HR7794 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 HR7794:


HR7794 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -12.6°
Azimuth: 64.2°
Direction: East-North-East

Celestial coordinates and finder chart of HR7794

HR7794 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 HR7794 are provided in the following table:

20h 23m 10s
+05° 20’ 35”

The simplified sky map below shows the position of HR7794 in the sky:

Finder chart HR7794 star
Simplified finder chart for HR7794.

Visibility of HR7794 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 HR7794 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: 84.7°
Max altitude: 43.9°
Azimuth: 275.3°

Digitized Sky Survey image of HR7794

The image below is a photograph of HR7794 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 HR7794 is -0.026 arcsec per year in Right Ascension and -0.039 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR7794 star
DSS2 image of HR7794. The red arrow shows the motion of HR7794 during the next 10000 years (-4.33 arcmin in Right Ascension and -6.50 arcmin in declination);

Distance of HR7794 from the Sun and relative movement

HR7794 is distant 246.41 light years from the Sun and it is moving towards the Sun at the speed of 12 kilometers per second.

75.59 pc
246.41 ly
-12 km/s
-0.026 arcsec/year
-0.039 arcsec/year

Spectral properties of HR7794

HR7794 belongs to spectral class G8 and has a luminosity class of III corresponding to a giant star.


The red dot in the diagram below shows where HR7794 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR7794. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR7794