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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
SunriseRise: 6:59  
clear_day Transit: 12:12  
SunsetSet: 17:25
sleep NighttimeWhat's Visible Now?
All Constellations » Aquila » 


Altitude: -10.4°   Azimuth: 74.3°   Direction: East-North-East

HR7636 is a giant star in the constellation of Aquila.

HR7636 visual magnitude is 6.17. Because of its reltive faintness, HR7636 should be visible only from locations with dark skyes, while it is not visible at all from skyes affected by light pollution.

The proper motion of HR7636 is 0.026 arcsec per year in Right Ascension and 0.065 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR7636 star
DSS2 image of HR7636. The red arrow shows the motion of HR7636 during the next 10000 years (4.33 arcmin in Right Ascension and 10.83 arcmin in declination);

Key facts about HR7636


HR7636 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -10.4°
Azimuth: 74.3°
Direction: East-North-East

Celestial coordinates and finder chart of HR7636

HR7636 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 HR7636 are provided in the following table:

19h 59m 22s
+01° 22’ 40”

The simplified sky map below shows the position of HR7636 in the sky:

Finder chart HR7636 star
Simplified finder chart for HR7636.

Visibility of HR7636 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 HR7636 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: 88.6°
Max altitude: 39.9°
Azimuth: 271.4°

Distance of HR7636 from the Sun and relative movement

HR7636 is distant 768.87 light years from the Sun and it is moving far from the Sun at the speed of 6 kilometers per second.

235.85 pc
768.87 ly
6 km/s
0.026 arcsec/year
0.065 arcsec/year

Spectral properties of HR7636

HR7636 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 HR7636 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR7636. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR7636